WO2019155795A1 - Endoscope - Google Patents

Endoscope Download PDF

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Publication number
WO2019155795A1
WO2019155795A1 PCT/JP2019/000018 JP2019000018W WO2019155795A1 WO 2019155795 A1 WO2019155795 A1 WO 2019155795A1 JP 2019000018 W JP2019000018 W JP 2019000018W WO 2019155795 A1 WO2019155795 A1 WO 2019155795A1
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WO
WIPO (PCT)
Prior art keywords
movable member
wire
shaft portion
shaft
hole
Prior art date
Application number
PCT/JP2019/000018
Other languages
French (fr)
Japanese (ja)
Inventor
原田　高志
Original Assignee
富士フイルム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士フイルム株式会社 filed Critical 富士フイルム株式会社
Priority to JP2019570334A priority Critical patent/JP6865862B2/en
Priority to CN201980007136.6A priority patent/CN111542252B/en
Publication of WO2019155795A1 publication Critical patent/WO2019155795A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes

Definitions

  • the present invention relates to an endoscope, and more particularly, to an endoscope provided with a treatment instrument stand that changes the direction in which a treatment instrument is led out at the distal end of an insertion portion.
  • various treatment instruments are introduced from a treatment instrument introduction port provided in a hand operation section (hereinafter referred to as “operation section”), and the treatment instrument is opened to the distal end member of the insertion section.
  • operation section a treatment instrument introduction port provided in a hand operation section
  • a treatment tool such as forceps or a contrast tube is used in a duodenoscope
  • a treatment tool such as a puncture needle is used in an ultrasonic endoscope.
  • Such a treatment tool needs to change the derivation direction of the treatment tool derived from the treatment instrument outlet in order to treat a desired position in the subject.
  • a treatment instrument stand hereinafter referred to as “stand stand” is provided on the distal end member, and a treatment instrument stand for changing the posture of the stand between the standing position and the lying position is provided on the operation unit.
  • a mechanism is provided.
  • a wire pulling type mechanism is known in which the tip of a wire (also referred to as a forceps raising wire) is directly attached to a stand (see Patent Document 1).
  • This mechanism connects the proximal end side of the wire to a standing operation lever (also referred to as a forceps raising lever) provided in the operation unit, and rotates the stand by pushing and pulling the wire with the standing operation lever. It is rotated around an axis to change its posture between the standing position and the lying position.
  • the operation part of the cited document 1 is provided with a grip part for holding the operation part by hand and an angle knob.
  • the wire opening is provided below the grip portion, and the drive shaft opening is provided in the grip portion.
  • the base end of the wire is led out from the wire opening, and from the drive shaft opening,
  • the tip of the drive shaft moved by the forceps raising lever is derived.
  • the distal end of the drive shaft and the proximal end of the wire are detachably coupled to the connection tool, and a protective cover that covers the connection tool is detachably provided on the operation unit.
  • Patent Document 2 discloses an endoscope in which a base end of a cable cord is led out from a base end of a control handle and a collet is connected to the base end of the cable cord. The collet is fastened to the nut and is moved in the front-rear direction by the operation lever.
  • the endoscope of Patent Document 1 has a configuration in which a connecting tool that connects the drive shaft, which is an upright operation mechanism, and the proximal end of the wire is housed in a narrow interior of the operation unit. There has been a problem that the operation of attaching and detaching the base end of this is complicated.
  • the endoscope disclosed in Patent Document 1 has a problem that the operation unit is enlarged by the amount that the connection tool is accommodated in the operation unit.
  • the present invention has been made in view of such circumstances, and provides an endoscope capable of improving the cleanability of the endoscope while easily performing the attaching / detaching operation of the proximal end of the wire with respect to the standing operation mechanism. For the purpose.
  • an endoscope of the present invention is provided with an operation portion provided with an operation member, an insertion portion provided on the distal end side of the operation portion, and a distal end portion of the insertion portion.
  • the treatment instrument stand, a movable member exposed outside the operation unit and operating in conjunction with the operation of the operation member, and an exposure member arranged outside the operation unit to rotatably support the movable member on the operation unit.
  • a first shaft portion and a first bearing portion provided on one end side of the movable member, wherein a bottomed recess is formed on an inner surface facing the operation portion, and the first shaft portion is accommodated in the recess.
  • a first bearing portion covering the first shaft portion, a seal member disposed between the outer peripheral surface of the first shaft portion and the inner peripheral surface of the concave portion of the first bearing portion, and the distal end side Connected to the treatment instrument stand, the proximal end side is connected to the movable member, and the treatment instrument is raised by being pushed and pulled according to the movement of the movable member.
  • Standing operation wire for operating the platform provided at the base end of the rising operation wire, comprising a mounting member engaged detachably to the movable member.
  • the first shaft portion is preferably a shaft portion that transmits the operation of the operation portion to the movable member.
  • One aspect of the present invention is a second bearing portion provided on the other end side of the movable member, and has a through hole from an inner surface facing the operation portion to an outer surface opposite to the inner surface.
  • an engagement hole is provided in one of the movable member and the attachment member, and an engagement portion that is detachably engaged with the engagement hole is provided in the other.
  • the engaging portion is preferably provided with an elastically deforming portion that is elastically deformed and engaged with the engaging hole.
  • the elastically deforming portion is formed with a pair of elastically deformable claws that are engaged with the edge of the engaging hole, and engages or disengages the engaging hole and the engaging portion. In doing so, it is preferable to displace the pair of claw portions in a direction to approach each other by elastic deformation.
  • the engaging portion has a cylindrical portion that is inserted into the engaging hole, and the elastically deforming portion is configured by a slit portion provided at a tip portion of the cylindrical portion. It is preferable that the slit portion is configured to be able to be reduced in diameter by elastic deformation when the distal end portion of the portion is inserted into the engagement hole.
  • the engagement hole has a narrow portion having a first width and a wide portion having a second width larger than the first width, and the engagement portion has a first width or less. It is preferable to have a shaft portion having an outer diameter and a diameter-increased portion provided at the tip of the shaft portion and having an outer diameter larger than the first width and smaller than the second width.
  • the engagement hole has a narrow portion having a first width and a wide portion having a second width larger than the first width, and the engagement portion has a first width or less.
  • the enlarged diameter portion is inserted into the wide portion, the enlarged diameter portion is preferably configured to be elastically deformable by a plurality of slits so that the diameter can be reduced.
  • the engagement hole provides friction resistance to the shaft portion by contacting the outer peripheral surface of the shaft portion when the shaft portion is moved between the narrow portion and the wide portion. It is preferable to have a part.
  • a cylindrical body extending in a direction perpendicular to the axial direction of the standing operation wire is provided on one of the movable member and the mounting member, and the other is rotatable on the outer periphery of the cylindrical body. It is preferable that an annular body to be engaged is provided and a rotation restricting stopper for restricting relative rotation between the cylindrical body and the annular body is provided.
  • the attachment member includes a shaft portion extending in a direction perpendicular to the axial direction of the standing operation wire, a connecting portion extending in a direction perpendicular to the longitudinal axis of the shaft portion, A locking portion provided on the opposite side of the shaft portion is provided, and the movable member has a mounting hole into which the shaft portion is inserted, and a longitudinal axis of the shaft portion with the shaft portion being inserted into the mounting hole. It is preferable that a locking groove portion that locks the locking portion when the shaft portion is rotated is provided.
  • the connecting portion includes a wire groove portion along the extending direction of the connecting portion, the wire groove portion accommodating the standing operation wire when the locking portion is locked to the locking groove portion. It is preferable to be provided.
  • the attachment member includes a pair of claw portions, a biasing member that biases the pair of claw portions in a direction to approach each other, and a pair of claw portions against the biasing force of the biasing member. It is preferable that a knob for moving in a direction away from each other is provided, and the movable member is provided with a pair of mounting holes in which the pair of claws are mounted by the biasing force of the biasing member.
  • a fixed shaft portion is provided in one of the movable member and the attachment member, and a fixed hole into which the fixed shaft portion is fitted is provided in the other, and the movable member and the attachment member It is preferable that either one is provided with a retaining hole, and the other is provided with a retaining part fitted to the retaining hole.
  • the mounting member includes a shaft portion extending in the axial direction of the standing operation wire, a small diameter portion formed at a central portion in the longitudinal axis direction of the shaft portion, and one end portion of the shaft portion.
  • a first locking portion provided on the shaft and a second locking portion provided on the other end of the shaft portion, and the movable member includes a fixed groove for receiving the shaft portion, and a shaft in the fixed groove.
  • a retaining portion that is in contact with the first locking portion and the second locking portion when the portion is received and restricts movement of the shaft portion in the longitudinal axis direction; It is preferable that a convex pressing portion that is brought into contact with the central portion of the shaft portion when the portion is accommodated is provided.
  • the retaining portion includes a pair of retaining pieces arranged with a gap along the longitudinal direction of the shaft portion, and a biasing member that biases the pair of retaining pieces in a direction approaching each other.
  • the shaft portion is preferably accommodated in the fixing groove against the urging force of the urging member from the gap between the pair of retaining pieces.
  • an endoscope capable of improving the cleaning performance of the endoscope while easily performing the attaching / detaching operation of the proximal end of the wire with respect to the standing operation mechanism.
  • tip member in which the stand is located in the standing position Enlarged perspective view of the stand Cross-sectional view of the main part showing the mounting structure of the stand for the tip member
  • the perspective view which illustrated the other side surface which opposes one side surface of the operation part shown in FIG. Enlarged perspective view in which the engaging portion is accommodated in the accommodating portion via the engaging guide portion Operation explanatory view in which the engaging portion is guided to the engaging guiding portion and is accommodated in the accommodating portion.
  • FIG. 1 An enlarged perspective view of the movable member attached to the operation unit as seen from one side.
  • FIG. 1 An enlarged perspective view of the movable member attached to the operation unit as seen from the other direction side Sectional view of the operation section along line 13-13 in FIG. Sectional drawing which showed the state before attaching a movable member to an operation part Sectional drawing which showed the state just before accommodating a sleeve in the recessed part of a 1st bearing part Sectional drawing which showed the state which accommodated the sleeve in the recessed part of a 1st bearing part Sectional drawing which showed the state which has arrange
  • the perspective view of the attachment structure of 1st Embodiment The perspective view which looked at the attachment structure shown in FIG.
  • the top view which showed the size of the engaging part to the engaging hole Assembly perspective view of mounting structure of third embodiment A plan view of the engagement hole showing the size of the engagement portion with respect to the engagement hole
  • the perspective view of the attachment structure of 5th Embodiment 36 is an assembled perspective view of the mounting structure shown in FIG. 36 is an assembled perspective view of the mounting structure shown in FIG.
  • the perspective view of the attachment structure of 7th Embodiment 41 is an assembled perspective view of the mounting structure shown in FIG. 41 is an assembled perspective view of the mounting structure shown in FIG.
  • the perspective view of the attachment structure of 8th Embodiment 44 is an assembled perspective view of the mounting structure shown in FIG. Sectional drawing which showed the principal part structure of the attachment structure shown in FIG. An explanatory view showing a state in which the shaft portion is broken by the pressing portion.
  • FIG. 1 is a configuration diagram of an endoscope system 12 including an endoscope 10 according to an embodiment of the present invention.
  • the endoscope system 12 includes an endoscope 10, a processor device 14, a light source device 16, and a display 18.
  • FIG. 1 also shows a treatment instrument 56 used in the endoscope system 12.
  • the endoscope 10 includes an operation unit 22 that includes an upright operation lever 20 that is an operation member, and an insertion unit 24 that is provided on the distal end side of the operation unit 22.
  • FIG. 2 is a perspective view of the tip member 28 in which the upright stand 30 is located in the lying position
  • FIG. 3 is a perspective view of the tip member 28 in which the stand 30 is located in the upright position.
  • the Z (+) direction in FIGS. 1 to 3 is referred to as the upward direction, and the Z ( ⁇ ) direction is referred to as the downward direction.
  • the X (+) direction is referred to as the right direction, and the X ( ⁇ ) direction is referred to as the left direction.
  • the Y (+) direction is referred to as the distal end side direction, and the Y ( ⁇ ) direction is referred to as the proximal end side direction.
  • the operation unit 22 is extended toward the distal end side from the operation unit main body 32 provided with the standing operation lever 20, the gripping part 34 connected to the operation part main body 32, and the gripping part 34.
  • the proximal end portion of the insertion portion 24 is connected to the distal end side of the extended portion 36 via a bend preventing tube 38.
  • the grasping portion 34 is a portion that the operator grasps when operating the endoscope 10.
  • the extending portion 36 extends from the distal end portion of the gripping portion 34 toward the distal end side in order to provide the movable member 96 (see FIG. 6) connected to the standing operation mechanism 120 (FIGS. 9 and 10).
  • This is a portion of the non-gripping region.
  • the region A from the distal end portion 44A of the convex mount portion 44 of the treatment instrument introduction port 42 provided in the grasping portion 34 to the proximal end portion 38A of the folding stop tube 38 corresponds to the extending portion 36.
  • An annular flange 40 is provided in the region A of the extended portion 36.
  • a universal cord 46 is provided in the operation unit main body 32 of the operation unit 22.
  • a light source connector 50 is provided on the distal end side of the universal cord 46, and the light source connector 50 is connected to the light source device 16.
  • an electrical connector 48 is branched from the light source connector 50, and the electrical connector 48 is connected to the processor device 14.
  • the insertion portion 24 is configured by connecting a distal end portion 26, a bending portion 52, and a flexible portion 54 from the distal end side toward the proximal end side.
  • the following contents are provided inside the insertion portion 24. That is, an operation for changing the leading end portion 56A of the treatment instrument 56 shown in FIG. 1 to the distal end member 28 shown in FIG.
  • a standing operation wire 60 (hereinafter referred to as a wire 60) for performing, a standing operation wire channel 62 (hereinafter referred to as a wire channel 62) for guiding the tip of the wire 60 to the tip member 28, and the light source device of FIG.
  • a light guide (not shown) for guiding the illumination light supplied from 16 to the tip member 28 in FIG. 2, an air / water supply tube (not shown), an angle wire (not shown), a signal cable (not shown), etc.
  • the contents are provided.
  • the operation unit 22 is configured in a substantially cylindrical shape as a whole, and has a cylindrical axis B along the Y (+)-Y ( ⁇ ) direction.
  • a pair of angle knobs 64 and 64 for bending the bending portion 52 are disposed on the side surface 22A on one side with a vertical section including the cylindrical axis B of the operation portion 22 as a boundary.
  • the pair of angle knobs 64, 64 are provided so as to be rotatable on the same axis.
  • the bending portion 52 has a structure in which a plurality of angle rings (not shown) are connected to each other so as to be rotatable.
  • the bending portion 52 is configured by covering the outer periphery of the structure with a cylindrical net knitted with a metal wire and covering the outer peripheral surface of the net with a rubber cylindrical outer skin.
  • four angle wires are arranged from the bending portion 52 configured as described above to the angle knobs 64 and 64. By rotating the angle knobs 64 and 64, these angle wires are connected to each other.
  • the bending portion 52 is bent vertically and horizontally by pushing and pulling.
  • the soft part 54 has a spiral tube (not shown) formed by spirally winding a thin metal strip having elasticity.
  • the flexible portion 54 is configured by covering the outer surface of the spiral tube with a cylindrical mesh knitted with a metal wire, and covering the outer peripheral surface of the mesh with a cylindrical outer skin made of resin.
  • the air / water supply button 66 and the suction button 68 are arranged in the operation unit main body 32 side by side.
  • air and water can be ejected from the air / water supply nozzle 70 provided in the tip member 28 of FIG.
  • the suction button 68 of FIG. 1 it is possible to suck body fluid such as blood from the suction port that also serves as the treatment instrument outlet port 72 provided in the distal end member 28 of FIG.
  • a treatment instrument introduction port 42 for introducing a treatment instrument 56 is provided in the grasping section 34 of the operation section 22 of FIG.
  • the treatment instrument 56 introduced from the treatment instrument introduction port 42 with the distal end portion 56 ⁇ / b> A at the head is inserted into the treatment instrument channel 58 of FIG. 2 inserted through the insertion section 24, and the treatment instrument guide provided on the distal end member 28 is introduced. It is led out from the outlet 72.
  • the standing operation lever 20 is rotated by an operator's hand holding the holding part 34.
  • the wire 60 shown in FIG. 2 is pushed and pulled by the standing operation mechanism 120 (see FIGS. 9 and 10) that operates in conjunction with the rotation operation of the standing operation lever 20.
  • the posture of the stand 30 connected to the front end side of 60 is changed between the standing position of FIG. 3 and the lying position of FIG.
  • the above-described standing operation mechanism 120 will be described later.
  • the endoscope 10 of the embodiment configured as described above is a side endoscope used as a duodenoscope, and the insertion portion 24 is inserted into the subject through the oral cavity.
  • the insertion unit 24 is inserted from the esophagus through the stomach to the duodenum, and a predetermined examination or treatment is performed.
  • a biopsy forceps having a cup capable of collecting a biological tissue at the distal end portion 56A is exemplified as the treatment instrument 56, but is not limited thereto.
  • a treatment instrument such as a contrast tube or a knife for EST (Endoscopic Sphincterotomy) is used as another treatment instrument.
  • the distal end portion 26 includes a distal end member 28 and a cap member 76 that is detachably attached to the distal end member 28.
  • the cap member 76 is configured in a substantially cylindrical shape whose front end is sealed, and a substantially rectangular opening window 76A is formed on a part of the outer peripheral surface thereof.
  • the opening window 76 ⁇ / b> A of the cap member 76 is communicated with the treatment instrument outlet 72 of the distal end member 28.
  • the distal end portion 56A of the treatment instrument 56 led out from the treatment instrument lead-out port 72 is led out from the opening window 76A.
  • the cap member 76 is made of an elastic material, for example, a rubber material such as fluorine rubber or silicon rubber, or a resin material such as polysulfone or polycarbonate, and is formed on the distal end member 28 on the base end side thereof.
  • An engaging portion (not shown) that engages with a groove (not shown) is provided, and the engaging portion is attached to the tip member 28 by engaging with the groove of the tip member 28. Further, when the treatment of the endoscope 10 is completed, the cap member 76 is removed from the distal end member 28 and cleaned or disinfected, or is discarded as a disposable.
  • the tip member 28 is made of a metal material having corrosion resistance.
  • the tip member 28 is integrally provided with a partition wall 78 projecting toward the tip side and a partition wall 80 facing the partition wall 78. Between the partition wall 78 and the partition wall 80, a stand support chamber 82 for storing the stand 30 is formed.
  • a treatment instrument outlet 72 for leading the treatment instrument 56 to the outside is formed on the proximal end side of the upright storage chamber 82, and the distal end portion of the treatment instrument channel 58 is connected to the treatment instrument outlet 72.
  • the treatment instrument channel 58 is inserted into the insertion portion 24 of FIG.
  • the proximal end portion of the treatment instrument channel 58 is connected to the distal end tube 202 of the branch tube 200 (see FIG. 10) provided inside the operation unit 22.
  • This branch pipe 200 has a well-known structure, and a base end portion is branched into two pipe lines 204 and 206, and a treatment instrument introduction port 42 is formed at the base end of one pipe line 204. Therefore, the distal end portion 56A of the treatment instrument 56 introduced from the treatment instrument introduction port 42 into the treatment instrument channel 58 via the conduit 204 is inserted into the treatment instrument channel 58 and stands up from the treatment instrument outlet 72 of FIG. It is led out to the table accommodation room 82.
  • the leading end portion 56 ⁇ / b> A of the treatment instrument 56 led out to the upright stand accommodating chamber 82 is changed in the lead-out direction according to the posture between the standing position and the lying down position of the stand 30 arranged in the upright stand accommodating chamber 82. Is done.
  • the distal end of a suction pipe 208 that sucks body fluid such as blood is connected to the proximal end of the other pipe line 206 of the branch pipe 200 shown in FIG.
  • FIG. 4 is an enlarged perspective view of the stand 30.
  • a guide surface 30 ⁇ / b> A is provided on the upper surface of the stand 30.
  • the distal end portion 56A of the treatment instrument 56 of FIG. 1 is led out from the opening window 76A of the cap member 76 of FIG.
  • the stand 30 is provided with rotating shaft portions 84 and 86 on both side surfaces of the base portion 30 ⁇ / b> B.
  • the axial directions of the rotary shaft portions 84 and 86 are set in the X (+) ⁇ X ( ⁇ ) direction of FIG. 2 when the upright base 30 is attached to the tip member 28.
  • FIG. 5 is a cross-sectional view of the main part showing the mounting structure of the stand 30 with respect to the tip member 28.
  • the shafts of the pivot shafts 84 and 86 are coaxially arranged via the base 30 ⁇ / b> B of the upright 30, and the pivot shaft 84 can pivot on the concave bearing portion 78 ⁇ / b> A of the partition wall 78.
  • the rotation shaft portion 86 is fitted to the concave bearing portion 80A of the partition wall 80 so as to be rotatable. Further, the rotation shaft portions 84 and 86 are attached to the bearing portions 78A and 80A with a predetermined backlash amount x in the axial direction of the rotation shaft portions 84 and 86, respectively.
  • an optical system accommodation chamber 88 is provided inside the partition wall 78.
  • An illumination window 90 and an observation window 92 are disposed adjacent to each other above the optical system accommodation chamber 88, and an air / water supply nozzle 70 directed toward the observation window 92 is provided on the tip member 28.
  • the air / water supply nozzle 70 is connected to an air / water supply device (not shown) via an air / water supply tube (not shown) inserted through the insertion portion 24, and the air / water supply button 66 of the operation portion 22 shown in FIG. Is operated, air or water is jetted from the air / water feeding nozzle 70 toward the observation window 92. Thereby, the observation window 92 is cleaned.
  • the illumination unit includes an illumination lens (not shown) installed inside the illumination window 90, and a light guide (not shown) arranged so that the front end face the illumination lens.
  • the light guide is disposed on the universal cord 46 from the insertion portion 24 of the endoscope 10 via the operation portion 22, and the base end thereof is connected to the light source device 16 via the light source connector 50. Thereby, the irradiation light from the light source device 16 is transmitted through the light guide and is irradiated to the outside from the illumination window 90.
  • the above-described imaging unit includes an imaging optical system (not shown) disposed inside the observation window 92 and a CMOS (complementary metal oxide semiconductor) type or CCD (charge coupled device) type imaging device (not shown). ing.
  • the imaging device is connected to the processor device 14 via a signal cable (not shown) inserted through the insertion unit 24 in FIG.
  • the imaging signal of the subject image obtained by the photographing unit is output to the processor device 14 via the signal cable and subjected to image processing, and then displayed on the display 18 as the subject image.
  • the wire 60 will be described. As shown in FIGS. 2 and 3, the wire 60 is connected to the stand 30 with the tip of the wire 60 being disposed outside the outlet 74. Further, the proximal end of the wire 60 is disposed outside the introduction port 94 provided in the operation unit 22 as shown in FIG.
  • FIG. 6 is a perspective view of the operation unit 22, and is a perspective view illustrating the other side surface 22B of the operation unit 22 shown in FIG. 1 opposite to the one side surface 22A.
  • the introduction port 94 is provided in the extending part 36 of the operation part 22.
  • An attachment member 98 is provided at the proximal end of the wire 60 disposed outside the introduction port 94, and this attachment member 98 is detachably attached to an engagement hole (described later) of the movable member 96. .
  • a movable member 96 is provided in the operation unit 22.
  • the movable member 96 is disposed so as to be exposed to the outside of the operation unit 22 and operates in conjunction with the operation of the standing operation lever 20 by the standing operation mechanism 120 (see FIGS. 9 and 10).
  • the movable member 96 is rotatably disposed on the other side surface 22B opposite to the one side surface 22A on which the angle knobs 64, 64 are provided.
  • the arrangement position is not limited, and it is sufficient that the operation unit 22 is rotatably arranged at a predetermined position.
  • the movable member 96 is a driven lever that rotates in conjunction with the rotation operation of the standing operation lever 20.
  • the standing operation mechanism 120 is a mechanism that is disposed inside the operation unit 22 and operates the movable member 96 in conjunction with the operation of the standing operation lever 20. Therefore, when the standing operation lever 20 is operated, the movable member 96 operates through the standing operation mechanism 120, and the wire 60 (see FIG. 2) connected to the movable member 96 is pushed and pulled.
  • the wire 60 is provided with an engaging member 100 at the tip.
  • the stand 30 is provided with a receiving groove 102 that is detachably engaged with the engaging member 100 and has an opening 104 formed on the X (+) direction side.
  • the engagement member 100 provided at the distal end of the wire 60 is accommodated in the accommodation groove 102 through the opening 104, so that the distal end of the wire 60 is coupled to the upright 30.
  • the engagement member 100 is a sphere
  • the accommodation groove 102 is a spherical recess that accommodates the sphere engagement member 100.
  • the shapes of the engaging member 100 and the receiving groove 102 are not limited to the above shapes, the wire 60 can be pushed and pulled by making the engaging member 100 a sphere and the receiving groove 102 a spherical recess. The sliding resistance between the engaging member 100 and the accommodation groove 102 generated by the operation can be reduced. Therefore, the push / pull operation of the wire 60 can be performed smoothly.
  • the distal end member 28 is provided with an engaging guiding portion 106 that is connected to the receiving groove 102 in the standing position of FIG.
  • the engagement guide portion 106 has a function of guiding the engagement member 100 led out from the lead-out port 74 to the opening 104 of the housing groove 102.
  • the lead-out port 74 is provided in the distal end member 28 and communicates with the introduction port 94 (see FIG. 6) via a wire channel 62 provided in the insertion portion 24.
  • the engagement member 100 is connected to the wire channel 62 (FIG. 2). And is led out from the outlet 74 to the outside. Then, the engaging member 100 is guided toward the opening 104 of the receiving groove 102 of the stand 30 by the engaging guiding portion 106 by the continuous introduction operation of the wire 60, and is engaged with the receiving groove 102 from the opening 104. Is done.
  • the engaging member 100 of the wire 60 can be engaged with the receiving groove 102 of the stand 30 only by the introduction operation of the wire 60.
  • FIG. 7 is an enlarged perspective view in which the engaging member 100 is engaged with the receiving groove 102 via the engaging guiding portion 106.
  • FIG. 8 is an explanatory view continuously showing the operation until the engaging member 100 is guided by the engaging guiding portion 106 and engaged with the receiving groove 102.
  • the engaging guiding portion 106 includes an engaging guiding path 108 that guides the engaging member 100 led out from the outlet 74 to the opening 104 of the housing groove 102, and an inside of the engaging guiding path 108. And a deformation generating portion 110 connected to the opening 104 of the receiving groove 102.
  • the deformation generation unit 110 contacts the engagement member 100 that advances in the Y (+) direction toward the opening 104 in the engagement guide path 108, and guides the engagement member 100 in the Y (+) direction X ( Guide in the + direction.
  • the tip of the wire 60 is elastically deformed in a direction (X (+) direction) gradually moving away from the opening 104 as the engaging member 100 approaches the opening 104 along the engaging guide path 108.
  • X (+) direction a direction gradually moving away from the opening 104 as the engaging member 100 approaches the opening 104 along the engaging guide path 108.
  • the engaging guide path 108 is formed by cutting out a part of the peripheral surface 28A of the tip member 28 into a concave shape, and gradually inclines in the X (+) direction from the outlet 74 toward the Y (+) direction. Surface.
  • a deformation generating part 110 is formed on the distal end side of the engaging guide path 108.
  • the engaging guide portion 106 is formed with a groove 112 that allows the distal end side of the wire 60 to be immersed and escaped when the engaging member 100 is engaged with the receiving groove 102.
  • a groove 114 is formed on the proximal end side of the receiving groove 102 of the stand 30 so that when the engaging member 100 is engaged with the receiving groove 102, the distal end side of the wire 60 is immersed and released.
  • the width dimension of the groove 112 in the direction orthogonal to the paper surface of FIG. 8 is larger than the diameter of the wire 60, and the engagement member 100 so that the engagement member 100 passing through the deformation generating portion 110 does not enter the groove 112. Smaller than the diameter.
  • the width dimension of the groove 114 in the direction orthogonal to the paper surface of FIG. 8 is larger than the diameter of the wire 60 and the engaging member 100 engaged with the receiving groove 102 does not come out in the Y ( ⁇ ) direction.
  • the diameter of the engaging member 100 is smaller.
  • the engaging guide portion 106 is a form suitable for engaging the engaging member 100 with the receiving groove 102 in a state where the stand 30 is positioned at the standing position. That is, as shown in FIG. 7, the housing groove 102 is disposed at a position facing the outlet port 74 in a state where the stand 30 is located at the standing position. Therefore, by moving the engagement member 100 straight from the outlet 74, the engagement member 100 can be engaged with the receiving groove 102 of the stand 30 positioned at the standing position via the engagement guide portion 106.
  • the tip member 28 is provided with a detaching guide surface 116, and the detaching guide surface 116 is provided on the upper surface of the partition wall 80 (see FIG. 2).
  • the separation guide surface 116 is a guide surface (see FIGS. 2 and 3) inclined in the Z ( ⁇ ) direction toward the X (+) direction.
  • the separation guide surface 116 is removed from the inside of the receiving groove 102. It functions as a surface for guiding the wire 60 in the direction in which the engaging member 100 is detached from the opening 104.
  • the attachment member (described later) provided at the proximal end of the wire 60 is removed from the engagement hole (described later) of the movable member 96, and then the introduction port of the extending portion 36 is removed.
  • the wire 60 is pushed in from 94, and the stand 30 is positioned from the standing position in FIG. 3 to the lying position in FIG. Thereafter, when the wire 60 is further pushed in, the wire 60 is guided in the X (+) direction by which the engaging member 100 is detached from the inside of the accommodation groove 102 to the outside of the opening 104 by the guide surface 116 for removal of the tip member 28.
  • the engaging member 100 is easily detached from the housing groove 102 to the outside of the opening 104 by the restoring force of the wire 60.
  • FIG. 9 is a configuration diagram showing the overall configuration of the standing operation mechanism 120.
  • FIG. 10 is a side view of the standing operation mechanism 120 of FIG. 9 and 10, the exterior case (not shown) of the operation unit 22 is omitted, and the standing operation mechanism 120 disposed inside the operation unit 22 is illustrated.
  • the standing operation mechanism 120 functions as a power transmission mechanism that connects the standing operation lever 20 and the movable member 96 and transmits the rotation operation of the standing operation lever 20 to the movable member 96.
  • the standing operation mechanism 120 includes a first conversion mechanism 124 that converts the rotational motion of the standing operation lever 20 into a linear motion, a wire 126 that is linearly moved by the first conversion mechanism 124, and a linear motion of the wire 126 that is converted into a rotational motion. And a second conversion mechanism 128 that rotates the movable member 96.
  • the first conversion mechanism 124 includes a crank member 130 having a base end connected to the standing operation lever 20, a first slider 132 having a base end connected to the tip of the crank member 130, and a base end to the tip of the first slider 132. Are connected to each other.
  • the proximal end of the wire 126 is connected to the distal end of the second slider 134, and the distal end of the wire 126 is connected to the second conversion mechanism 128.
  • the crank member 130, the first slider 132, and the second slider 134 are moved along the cylindrical axis B in conjunction therewith. Move linearly. Thereby, the wire 126 moves linearly along the cylindrical axis B, and the linear motion is transmitted to the second conversion mechanism 128.
  • the second conversion mechanism 128 includes a lever 136, a first gear 138, a second gear 140, a third gear 142, and a fourth gear 144, and a reduction mechanism is configured by these gears.
  • the lever 136 is rotatably supported by the bracket 146 via a shaft portion 148, and the tip end of the wire 126 is connected. Therefore, the lever 136 is rotated around the shaft portion 148 by the linear motion of the wire 126.
  • the first gear 138 is provided integrally with the lever 136 and is rotated about the shaft portion 148.
  • the second gear 140 meshes with the first gear 138 and is rotatably supported by the bracket 146 via the shaft portion 150.
  • the third gear 142 is provided integrally with the second gear 140 and is provided coaxially with the second gear 140.
  • the fourth gear 144 is meshed with the third gear 142.
  • a rotation shaft 152 (see FIG. 13) is fixed to the fourth gear 144 coaxially with the fourth gear 144.
  • a proximal end side of the rotation shaft 152 is rotatably supported by the bracket 146, and a distal end side of the rotation shaft 152 is disposed outside the operation unit 22.
  • the rotating shaft 152 is provided coaxially with the disk-shaped rotating body 154, and the rotating body 154 is connected to the rotating shaft 152 and rotated together with the rotating shaft 152.
  • the rotating body 154 is rotatably supported by the opening 23 of the operation unit 22 via the O-ring 166.
  • the opening 23 is sealed by the O-ring 166, and the water tightness of the operation unit 22 is ensured.
  • a sleeve 156 is formed on the side surface of the rotating body 154.
  • the sleeve 156 is provided coaxially with the rotating body 154, and the first bearing portion 162 of the movable member 96 is connected to the outer peripheral surface of the sleeve 156 via an O-ring 158.
  • the above-described sleeve 156 corresponds to the first shaft portion of the present invention that rotatably supports the movable member 96 on the operation portion 22, and the O-ring 158 corresponds to the seal member of the present invention. To do. A connection structure between the first bearing portion 162 and the sleeve 156 will be described later.
  • the second conversion mechanism 128 (see FIGS. 9 and 10) configured as described above, when the linear motion of the wire 126 is transmitted to the lever 136, the first gear 138 is rotated together with the lever 136, The rotation operation of the first gear 138 is transmitted to the fourth gear 144 via the second gear 140 and the third gear 142, and the fourth gear 144 is rotated.
  • the rotating body 154 is rotated together with the rotating shaft 152 (see FIG. 13).
  • the movable member 96 connected to the sleeve 156 of the rotating body 154 via the O-ring 158 is rotated about the axis of the sleeve 155.
  • the rotation operation of the standing operation lever 20 is decelerated and transmitted to the movable member 96 by the second conversion mechanism 128 including the deceleration mechanism. That is, the rotation angle of the first bearing portion 162 of the movable member 96 is smaller than the rotation angle of the lever 136 that is operated by operating the standing operation lever 20. Thereby, the force required to operate the standing operation lever 20 can be further reduced, and the raising and lowering posture control of the standing table 30 by the standing operation lever 20 is facilitated.
  • the wire 126 is used as a component constituting the standing operation mechanism 120.
  • the use of the wire 126 has the following advantages. That is, when the linear motion of the second slider 134 is converted into the rotational motion of the lever 136, the wire 126 can move in a curvilinear manner (slack), so that it is not necessary to install a link mechanism, and space constraints are reduced.
  • slack curvilinear manner
  • the second slider 134 and the lever 136 are connected by a link mechanism, a force escape field is reduced in the standing operation mechanism 120.
  • the wire 126 is loosened, thereby releasing the force. Therefore, the load applied to the standing operation mechanism 120 can be reduced.
  • FIG. 11 is an enlarged perspective view of the movable member 96 attached to the operation unit 22 as viewed from one direction side, and is a perspective view specifically showing the first bearing portion 162 provided on one end side of the movable member 96. It is.
  • FIG. 12 is an enlarged perspective view of the movable member 96 attached to the operation unit 22 as seen from the other direction side, and particularly shows the second bearing portion 164 provided on the other end side of the movable member 96.
  • FIG. 13 is a cross-sectional view of the operation unit 22 taken along line 13-13 in FIG.
  • the movable member 96 is provided on the plate-shaped beam portion 160, the first bearing portion 162 provided on one end side of the beam portion 160, and the other end side of the beam portion 160.
  • the second bearing portion 164 is provided and is configured in a U shape as a whole.
  • the first bearing portion 162 is formed with a bottomed concave portion 163 on the inner side surface 162 ⁇ / b> A facing the operation portion 22.
  • the recess 163 has an opening on the side facing the operation unit 22, and the sleeve 156 is accommodated in the recess 163 through the opening. Thereby, the sleeve 156 is covered with the first bearing portion 162 without being exposed to the outside.
  • the O-ring 158 described above is disposed between the outer peripheral surface of the sleeve 156 and the inner peripheral surface of the recess 163. Thereby, the water tightness of the internal space of the recessed part 163 in which the sleeve 156 is arrange
  • positioned is ensured.
  • connection structure of such an embodiment for example, a through hole is formed in the first bearing portion 162, and the rotation shaft 152 and the first bearing portion 162 are connected to the through hole through the rotation shaft 152.
  • a connection structure that is connected by a screw (not shown)
  • the inner peripheral surface of the through hole and the screw are exposed to the outside. For this reason, it takes time to clean the inner peripheral surface of the through hole and the screw.
  • the connecting structure of the embodiment is a structure in which the rotating shaft 152, the sleeve 156, and the concave portion 163 are not exposed to the outside, the cleaning performance of the first bearing portion 162 can be improved.
  • the cleaning performance of the endoscope 10 can be improved as compared with the conventional endoscope.
  • the outer surface 162B of the first bearing portion 162 is preferably a smooth surface in order to improve the cleanability.
  • the second bearing portion 164 has a through hole 165 from the inner surface 164A facing the operation portion 22 toward the outer surface 164B opposite to the inner surface 164A.
  • a driven shaft 168 configured as a screw is inserted into the through hole 165, and the driven shaft 168 is fastened and fixed to a screw hole 21 formed in the operation unit 22. As a result, the second bearing portion 164 is pivotally supported on the operation portion 22 via the driven shaft 168.
  • a cap member 167 made of an elastic member such as rubber is attached to the opening on the outer surface 164 B side of the through hole 165, and the through hole 165 is closed by the cap member 167. . Even in such a connection structure, since the through-hole 165 and the driven shaft 168 are not exposed to the outside, the cleaning performance of the endoscope 10 is improved.
  • the driven shaft 168 corresponds to the second shaft portion of the present invention
  • the cap member 167 corresponds to the closing member of the present invention.
  • a cylindrical spacer 169 is inserted between the second bearing portion 164 and the operation portion 22, and the driven shaft 168 is inserted into the spacer 169 and fixed to the operation portion 22.
  • the shaft cores of the sleeve 156 on the first bearing portion 162 side and the driven shaft 168 on the second bearing portion 164 side are set coaxially.
  • FIG. 14 is a cross-sectional view of the operation unit 22 showing a state immediately before the movable member 96 is attached to the operation unit 22.
  • FIG. 14 shows that an O-ring 158 is attached to the outer peripheral surface of the sleeve 156.
  • FIG. 15 is a cross-sectional view of the operation portion 22 showing a state immediately before the sleeve 156 is accommodated in the concave portion 163 of the first bearing portion 162 of the movable member 96.
  • FIG. 15 shows that the inner side surface 164A of the second bearing portion 164 is brought into contact with the operation portion 22, and the opening of the concave portion 163 faces the sleeve 156 at that position. That is, it is shown that the inner side surface 164A of the second bearing portion 164 functions as a positioning surface for accommodating the sleeve 156 in the recess 163.
  • FIG. 16 is a cross-sectional view of the operation portion 22 showing a state in which the sleeve 156 is accommodated in the concave portion 163 of the first bearing portion 162. That is, the sleeve 156 can be accommodated in the recess 163 only by pushing the first bearing portion 162 shown in FIG. 15 toward the sleeve 156. This completes the attachment work for attaching the first bearing portion 162 to the operation portion 22 side. In the state of FIG. 16, the water tightness of the recess 163 is ensured by the O-ring 158. Further, the inner surface 164 ⁇ / b> A of the second bearing portion 164 is separated from the operation portion 22 because the first bearing portion 162 is pushed toward the sleeve 156.
  • FIG. 17 is a cross-sectional view of the operation portion 22 showing a state in which the spacer 169 is disposed in the gap between the inner surface 164A of the second bearing portion 164 and the operation portion 22.
  • the driven shaft 168 is inserted into the through hole 165 of the second bearing portion 164 as shown in FIG. Thereafter, the driven shaft 168 is fastened to the screw hole 21 of the operation unit 22, and then the through hole 165 is closed by the cap member 167.
  • the attaching operation for attaching the second bearing portion 164 to the operation portion 22 is completed, and the attaching operation for attaching the movable member 96 to the operation portion 22 is completed.
  • the movable member 96 attached to the operation unit 22 does not have a through hole for inserting a screw in the first bearing unit 162, and the second bearing unit 164 Has a through hole 165 for inserting the driven shaft 168, and the through hole 165 is sealed by a cap member 167. For this reason, the cleaning property of the movable member 96 is improved, and as a result, the cleaning property of the endoscope 10 is improved.
  • FIG. 18 is a perspective view of the mounting structure 170 viewed from the other side surface 22B of the operation unit 22.
  • FIG. 19 is a perspective view of the mounting structure 170 shown in FIG. 18 as viewed from the left side.
  • FIG. 20 is a perspective view of a wire assembly 172 including a wire 60 and an attachment member 98 provided at the proximal end of the wire 60.
  • FIG. 21 is a front view of the mounting member 98
  • FIG. 22 is a perspective view of the extending portion 36 having the introduction port 94 and the movable member 96.
  • the movable member 96 is provided with an engagement hole 174 into which the attachment member 98 (see FIG. 21) is detachably engaged.
  • the engagement hole 174 is formed along the longitudinal direction of the beam portion 160 of the movable member 96, and is configured by a through hole that penetrates the front and back surfaces of the beam portion 160.
  • a pair of engagement portions 176 and 176 (see FIG. 21) of the attachment member 98 are detachably engaged with the engagement holes 174.
  • the attachment member 98 shown in FIG. 21 is a substantially triangular plate-like body, and a hole 180 where the proximal end of the wire 60 is connected to the core 178 at the center is formed.
  • the pair of engaging portions 176 and 176 of the attachment member 98 are provided on both sides of the core portion 178 via slit-shaped notches 182.
  • the pair of engaging portions 176 and 176 are formed with elastic deformation portions 184 that are elastically deformed and engaged with the engagement holes 174, respectively.
  • the elastic deformation portions 184 and 184 are respectively formed with claw portions 186 that are engaged with the edge portions 175 and 175 (see FIG. 22) on both sides of the engagement hole 174 in the longitudinal direction.
  • FIG. 23 shows a diagram in which the wire 60 is inserted from the introduction port 94 with the engaging member 100 (see FIG. 20) at the head.
  • FIG. 24 shows the posture of the attachment member 98 in a state where the tip of the wire 60 is connected to the upright 30.
  • the taper portions 187 and 187 of the lower portions of the claw portions 186 and 186 are brought into contact with the edge portions 175 and 175 (see FIG. 23) on both sides of the engagement hole 174 to engage the attachment member 98.
  • Push into the hole 174 By this pushing operation, the interval between the claw portions 186 and 186 is narrowed, and the claw portions 186 and 186 are locked to the edge portions 175 and 175 on both sides of the engagement hole 174.
  • the attachment member 98 is connected to the movable member 96 as shown in the connection diagram of FIG.
  • the base end of the wire 60 can be touched to the movable member 96 only by pushing the claws 186 and 186 of the attachment member 98 into the engagement holes 174 of the movable member 96. Can be attached.
  • the movable member 96 is moved in the arrow C direction or the arrow D direction as shown in FIG. Then, in conjunction with the operation of the movable member 96, the wire 60 is pushed and pulled by the movable member 96 via the attachment member 98. Thereby, the stand 30 is rotated between the standing position and the lying position.
  • the endoscope 10 is used for various examinations or treatments. Thereafter, when the endoscope 10 is cleaned, the following operation is performed.
  • the cap member 76 shown in FIG. the engaging portions 176 and 176 of the mounting member 98 are picked with fingers, the interval between the claw portions 186 and 186 is narrowed to be smaller than the longitudinal dimension of the engaging hole 174, and then the engaging hole The claw portions 186 and 186 are pulled out from 174.
  • the base end of the wire 60 can be detached from the movable member 96 only by pulling out the claw portions 186 and 186 from the engagement holes 174.
  • the wire 60 is pushed in from the introduction port 94 of the extending portion 36, so that the stand 30 is positioned from the standing position in FIG. 3 to the lying position in FIG. Thereafter, the wire 60 is further pushed in so that the engaging member 100 is detached from the housing groove 102 to the outside of the opening 104. With this operation, the tip of the wire 60 can be removed from the upright 30. Next, the wire 60 is pulled out from the introduction port 94 to empty the wire channel 62. Thereafter, the tip member 28, the upright stand 30, and the wire channel 62 are cleaned.
  • the operation of the wire 60 can be performed only by pushing the claws 186 and 186 of the attachment member 98 into the engagement holes 174 of the movable member 96 outside the operation portion 22.
  • the proximal end can be attached to the movable member 96.
  • the base end of the wire 60 can be removed from the movable member 96 only by pulling the engagement portions 176 and 176 of the attachment member 98 from the engagement hole 174 of the movable member 96 outside the operation portion 22.
  • the detachment operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 can be easily performed as compared with the conventional endoscope. Can do.
  • the endoscope 10 of the embodiment has improved cleaning properties of the endoscope 10 due to the mounting structure of the movable member 96 to the operation unit 22.
  • the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
  • the engagement hole 174 is formed in the movable member 96 and the engagement portion 176 is formed in the attachment member 98.
  • the engagement portion 176 is formed in the movable member 96 and attached.
  • An engagement hole 174 may be formed in the member 98. That is, an engagement hole 174 may be provided in one of the movable member 96 and the attachment member 98, and an engagement portion 176 that is detachably engaged with the engagement hole 174 may be provided on the other.
  • the claw portion 186 may be provided not on the longitudinal direction side of the beam portion 160 of the movable member 96 but on the lateral direction side.
  • the engagement holes 174 may be two engagement holes formed to be separated from each other in the longitudinal direction of the beam portion 160.
  • the engagement hole 174 may be a concave non-through hole that does not penetrate the front and back surfaces of the beam portion 160.
  • the wire 60 is pulled out from the introduction port 94 in order to empty the wire channel 62.
  • the present invention is not limited to this.
  • the wire 60 prior to pulling out the wire 60 from the wire channel 62, the wire 60 can be pulled out from the outlet 74 by removing the proximal end of the wire 60 from the attachment member 98.
  • FIG. 26 is a perspective view showing a mounting structure 170A, which is a modification of the mounting structure 170 shown in FIGS.
  • the engagement hole 174A formed in the movable member 96 is a circular through hole. Further, the engaging portion 176A of the mounting member 98A has a cylindrical portion 177 inserted into the engaging hole 174A.
  • the elastically deforming portion of the attachment member 98A is configured by a slit portion 184A provided at the tip of the cylindrical portion 177, and a claw portion 186A is formed on the outer peripheral surface of the slit portion 184A.
  • the slit portion 184A of the cylindrical portion 177 when the slit portion 184A of the cylindrical portion 177 is inserted into the engagement hole 174A, the slit portion 184A is reduced in diameter by elastic deformation. Thereby, when the slit part 184A passes through the engagement hole 174A and the slit part 184A passes through the engagement hole 174A, the slit part 184A returns to the original diameter. Accordingly, as shown in the sectional view of the mounting structure 170A shown in FIG. 27, the claw portion 186A of the slit portion 184A engages with the back surface 160A of the beam portion 160 of the movable member 96, so that the mounting member 98A is attached to the movable member 96. Connected.
  • the base end of the wire 60 can be attached to the movable member 96 only by inserting the engagement portion 176A into the engagement hole 174A.
  • the base end of the wire 60 is removed from the movable member 96 only by pulling the slit portion 184A from the engagement hole 174A after pinching the slit portion 184A with a finger to reduce the diameter of the slit portion 184A. Can do.
  • the base end of the wire 60 can be easily attached to and detached from the standing operation mechanism 120 (see FIGS. 9 and 10), similarly to the mounting structure 170 of the first embodiment.
  • the endoscope 10 of the embodiment having the mounting structure 170A it is possible to improve the cleanability of the endoscope 10 while easily performing the attaching / detaching operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120. it can.
  • FIG. 28 is a perspective view of the mounting structure 210
  • FIG. 29 is an assembled perspective view of the mounting structure 210
  • FIG. 30 is a cross-sectional view of the main part of the mounting structure 210.
  • the mounting structure 210 includes a movable member 96 and a mounting member 212.
  • the beam portion 160 of the movable member 96 is provided with an engagement hole 214
  • the attachment member 212 is provided with an engagement portion 216 that is detachably engaged with the engagement hole 214.
  • the attachment member 212 includes a knob portion 218 and a shaft portion 220 that constitutes the engaging portion 216, and a proximal end of the wire 60 is coupled to a hole portion 222 formed in the shaft portion 220.
  • FIG. 31 is a plan view of the engagement hole 214, in which the shape of the enlarged diameter portion 228 (see FIG. 29) of the engagement portion 216 is superimposed on the shape of the engagement hole 214.
  • the engagement hole 214 has a narrow part 224 having a diameter a and a wide part 226 having a diameter b larger than the diameter a.
  • the first width of the present invention is described by a diameter a
  • the second width of the present invention is indicated by a diameter b.
  • a line CL connecting the center of the narrow portion 224 and the center of the wide portion 226 is a curve along an arc centered on the introduction port 94 (not shown).
  • the arrangement of the narrow portion 224 and the wide portion 226 facilitates an operation when the attachment member 212 is engaged with the engagement hole 214. This will be described later.
  • the 29 has a shaft part 220 having an outer diameter c equal to or smaller than the diameter a in FIG. 31 and a diameter-enlarged part 228 provided at the tip of the shaft part 220.
  • the engagement part 216 of the mounting member 212 shown in FIG. By reducing the difference between the diameter a and the outer diameter c, the shaft portion 220 can be stably held by the narrow portion 224.
  • the enlarged diameter portion 228 has an outer diameter d that is larger than the diameter a and smaller than the diameter b.
  • the enlarged diameter portion 228 functions as a retaining member that restricts the shaft portion 220 from separating from the narrow portion 224 in the axial direction of the shaft portion 220.
  • the engagement hole 214 has a frictional resistance portion 230 between the narrow portion 224 and the wide portion 226.
  • the frictional resistance portion 230 is provided at the opening entrance portion of the narrow portion 224 and is formed so as to protrude from the opposing wall surfaces of the engagement hole 214.
  • the frictional resistance part 230 functions as a restricting member that restricts the shaft part 220 inserted into the narrow part 224 from inadvertently sliding from the narrow part 224 to the wide part 226.
  • the engaging portion 216 is inserted into the wide portion 226.
  • the attachment member 212 slides from the wide part 226 toward the narrow part 224.
  • the attachment member 212 moves along a curve CL centering on the introduction port 94.
  • the attachment member 212 slides smoothly from the wide portion 226 toward the narrow portion 224.
  • the shaft portion 220 comes into contact with the frictional resistance portion 230, but the engaging portion 216 is made to have a width by the force of sliding the engaging portion 216.
  • the narrow portion 224 can be engaged without any problem.
  • the attachment member 212 is coupled to the movable member 96.
  • the base end of the wire 60 can be attached to the movable member 96 only by engaging the engaging portion 216 with the narrow portion 224.
  • the diameter expanding portion 228 can prevent the shaft portion 220 from being detached from the narrow portion 224 in the axial direction of the shaft portion 220. . Further, the shaft portion 220 abuts against the frictional resistance portion 230, so that the engagement portion 216 can be prevented from sliding from the narrow portion 224 toward the wide portion 226. Thereby, the attachment member 212 can be reliably connected to the movable member 96.
  • the engaging portion 216 is slid from the narrow portion 224 to the wide portion 226, and from the wide portion 226 to the engaging portion. Pull out 216.
  • the base end of the wire 60 can be detached from the movable member 96 only by pulling out the engaging portion 216 from the wide portion 226.
  • attachment structure 210 of the second embodiment similarly to the attachment structure 170 of the first embodiment, it is easy to attach and detach the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10). It can be carried out.
  • the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
  • FIG. 32 is an assembly perspective view of the mounting structure 232.
  • FIG. 33 is a plan view of the engagement hole 214 formed in the movable member 96, and shows the shape of the enlarged diameter portion 238 of the engagement portion 236 of the attachment member 234 superimposed on the shape of the engagement hole 214. Yes.
  • the engagement hole 214 has a narrow part 224 having a diameter a and a wide part 226 having a diameter b larger than the diameter a.
  • the narrow portion 224 and the wide portion 226 are in a positional relationship as in FIG.
  • the engaging portion 236 of the attachment member 234 shown in FIG. 32 is provided at the shaft portion 220 having an outer diameter c equal to or smaller than the diameter a and the tip of the shaft portion 220, and has an outer diameter f larger than the diameter b.
  • the enlarged diameter portion 238 is elastically deformed by the plurality of slits 237 and reduced in diameter when the enlarged diameter portion 238 is inserted into the wide portion 226.
  • the enlarged diameter portion 238 when the enlarged diameter portion 238 is fitted into the wide portion 226 of the engagement hole 214, the enlarged diameter portion 238 is elastically deformed by the plurality of slot grooves 237 and reduced in diameter. . Thereby, the enlarged diameter part 238 passes through the wide part 226, and when the enlarged diameter part 238 passes through the wide part 226, the enlarged diameter part 238 returns to the original diameter. As a result, the enlarged diameter portion 238 is engaged with the back surface 160A of the beam portion 160 of the movable member 96, so that the attachment member 234 is prevented from coming off from the movable member 96.
  • the engaging portion 236 is slid toward the narrow portion 224, and the engaging portion 236 is engaged with the narrow portion 224.
  • the attachment member 234 is coupled to the movable member 96.
  • the base end of the wire 60 can be attached to the movable member 96 only by engaging the engaging portion 236 with the narrow portion 224.
  • the diameter expanding portion 238 can prevent the shaft portion 220 from being detached from the narrow portion 224 in the axial direction of the shaft portion 220. . Further, the shaft portion 220 abuts against the frictional resistance portion 230, so that the engagement portion 236 can be prevented from sliding from the narrow portion 224 toward the wide portion 226. Thereby, the attachment member 234 can be reliably connected to the movable member 96.
  • the engaging portion 236 of the attachment member 234 is slid from the narrow portion 224 to the wide portion 226, and then the diameter is increased.
  • the part 238 is picked with a finger, the diameter-enlarged part 238 is reduced in diameter, and the diameter-enlarged part 238 is pulled out from the wide part 226.
  • the base end of the wire 60 can be removed from the movable member 96 only by pulling out the enlarged diameter portion 238 from the wide portion 226.
  • the attachment structure 232 of the third embodiment similarly to the attachment structure 170 of the first embodiment, the operation of attaching and detaching the proximal end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed. It can be carried out.
  • the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
  • FIG. 34 is a perspective view of the mounting structure 240
  • FIG. 35 is an assembly perspective view of the mounting structure 210.
  • the mounting structure 240 includes a movable member 242 and a mounting member 244.
  • the movable member 242 includes a first bearing portion 162, a second bearing portion 164, and a cylindrical body 246 that connects the first bearing portion 162 and the second bearing portion 164.
  • the cylindrical body 246 extends in a direction (X (+)-X ( ⁇ ) direction) perpendicular to the axial direction of the wire 60.
  • U-shaped grooves 248 and 250 constituting rotation restriction stoppers are formed at the upper end portions of the first bearing portion 162 and the second bearing portion 164, respectively.
  • the movable member 242 is also attached to the operation unit 22 with the same attachment structure as the movable member 96 shown in FIG.
  • the attachment member 244 includes an annular body 252 that is rotatably engaged with the outer periphery of the cylindrical body 246, and pins 254 and 256 that together with the grooves 248 and 250 constitute a rotation restricting stopper.
  • the annular body 252 has a C-shaped cross section perpendicular to the longitudinal direction, and the slit 253 formed in the longitudinal direction is pressed against the cylindrical body 246 to expand the diameter and engage with the cylindrical body 246. .
  • the slit 253 of the annular body 252 of the mounting member 244 is pressed against the cylindrical body 246 of the movable member 242, and the annular body 252 is engaged with the cylindrical body 246.
  • the base end of the wire 60 can be attached to the movable member 242 only by engaging the annular body 252 with the cylindrical body 246.
  • the pin 254 is engaged with the groove 248 and the pin 256 is engaged with the groove 250 at the same time, so that the movable member 242 pushes and pulls the wire 60.
  • the relative rotation of the annular body 252 with respect to the cylindrical body 246 can be prevented. Thereby, the wire 60 can be smoothly pushed and pulled.
  • the annular body 252 is cylindrical when the attachment member 244 is pulled in the direction of removing the pins 254 and 256 from the grooves 248 and 250.
  • the diameter is increased by being pushed by the body 246, and the annular body 252 is detached from the cylindrical body 246.
  • the base end of the wire 60 can be detached from the movable member 96 only by pulling the attachment member 244.
  • the attachment / detachment operation of the proximal end of the wire 60 with respect to the upright operation mechanism 120 can be easily performed as with the attachment structure 170 of the first embodiment. It can be carried out.
  • the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
  • the movable member 242 is provided with the cylindrical body 246, and the mounting member 244 is provided with the annular body 252.
  • the movable member 242 and the mounting member 244 are provided with the cylindrical body 246, and the other An annular body 252 may be provided on the surface.
  • FIG. 36 is a perspective view of the mounting structure 270
  • FIGS. 37 and 38 are assembly perspective views of the mounting structure 270.
  • the attachment structure 270 includes a movable member 96 and an attachment member 272.
  • the attachment member 272 includes a shaft portion 274 extending in a direction perpendicular to the axial direction of the wire 60, a connecting portion 276 extending in a direction h perpendicular to the longitudinal axis g of the shaft portion 274, and a shaft of the connecting portion 276.
  • a locking portion 278 provided on the opposite side to the portion 274 is provided.
  • the beam portion 160 of the movable member 96 is provided with a mounting hole 280 into which the shaft portion 274 is inserted, and a locking groove portion 282 in which the locking portion 278 is locked.
  • the mounting hole 280 is formed along the axial direction of the wire 60, and the length j of the mounting hole 280 along the axial direction is obtained by adding the diameter k of the shaft portion 274 and the length m of the connecting portion 276. It is set longer than the length.
  • the locking portion 278 is locked as shown in FIG. 36 when the shaft portion 274 is rotated around the longitudinal axis g of the shaft portion 274 in the state of FIG. 38 in which the shaft portion 274 is inserted deeply into the mounting hole 280.
  • the groove 282 is locked.
  • the beam portion 160 is formed with a notch 284 penetrating the mounting hole 280.
  • the connecting portion 276 is received in the mounting hole 280 via the notch portion 284.
  • the connecting portion 276 is provided with a wire groove portion 286 along the direction h which is the extending direction of the connecting portion 276.
  • the wire groove portion 286 accommodates the wire 60 when the locking portion 278 is locked to the locking groove portion 282.
  • the shaft portion 274 is inserted into the mounting hole 280, the shaft portion 274 is rotated around the longitudinal axis g of the shaft portion 274, and the locking portion 278 is locked to the locking groove portion. Lock to 282.
  • the proximal end of the wire 60 can be attached to the movable member 96 only by inserting the shaft portion 274 into the mounting hole 280 and rotating the shaft portion 274.
  • the base end of the wire 60 is removed from the movable member 96 simply by removing the locking portion 278 from the locking groove portion 282 and pulling out the shaft portion 274 from the mounting hole 280. be able to.
  • the attachment structure 270 of the fifth embodiment similarly to the attachment structure 170 of the first embodiment, the attachment / detachment operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed. It can be carried out.
  • the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
  • FIG. 39 is a perspective view of the mounting structure 290
  • FIG. 40 is an assembled perspective view of the mounting structure 290.
  • the attachment structure 290 includes a movable member 96 and an attachment member 292.
  • the attachment member 292 includes a pair of claw portions 294A and 294B, a spring 296 that urges the pair of claw portions 294A and 294B toward each other, and a pair of claw portions 294A and 294B against the urging force of the spring 296.
  • a pair of knobs 298A and 298B are provided for moving the two in a direction away from each other.
  • the spring 296 corresponds to the biasing member of the present invention.
  • the claw portion 294A and the knob portion 298A are integrally formed.
  • the claw portion 294B and the knob portion 298B are integrally formed and are pivotally supported by the shaft 300.
  • the proximal end of the wire 60 is fixed to the shaft 300.
  • the beam 160 of the movable member 96 is provided with a pair of mounting holes 302A and 302B in which the pair of claws 294A and 294B are mounted by the biasing force of the spring 296.
  • the pair of claw portions 298A, 298B is pinched to widen the distance between the pair of claw portions 294A, 294B, and the pair of claw portions 294A, 294B are paired with the pair of mounting holes 302A, Insert into 302B and release the fingers from the pair of claws 294A, 294B. Accordingly, the pair of knobs 298A and 298B are locked to the pair of mounting holes 302A and 302B by the biasing force of the spring 296.
  • the base end of the wire 60 is attached to the movable member 96 only by engaging the pair of knobs 298A, 298B with the pair of mounting holes 302A, 302B. Can do.
  • the pair of claw portions 298A and 298B are pinched to widen the distance between the pair of claw portions 294A and 294B.
  • the claw portions 294A and 294B are removed from the pair of mounting holes 302A and 302B.
  • the base end of the wire 60 can be removed from the movable member 96 only by removing the pair of knobs 298A, 298B from the pair of mounting holes 302A, 302B. .
  • the attaching / detaching operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 can be easily performed as in the attachment structure 170 of the first embodiment. It can be carried out.
  • the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
  • FIG. 41 is a perspective view of the mounting structure 310
  • FIGS. 42 and 43 are assembly perspective views of the mounting structure 3100.
  • FIG. 41 is a perspective view of the mounting structure 310
  • FIGS. 42 and 43 are assembly perspective views of the mounting structure 3100.
  • the attachment structure 310 includes a movable member 96 and an attachment member 312.
  • a fixed shaft portion 316 is provided on the beam portion 160 of the movable member 96. Further, the attachment member 312 is formed in a plate shape and is provided with a fixing hole 318 to be fitted to the fixed shaft portion 316.
  • the attachment member 312 is provided with a retaining hole 320
  • the movable member 96 is provided with a retaining part 322 that is fitted into the retaining hole 320.
  • the retaining portion 322 is formed in a shaft shape. Further, the retaining portion 322 is provided integrally with a soft resin sheet 324 such as polypropylene and is connected to the beam portion 160 via the resin sheet 324.
  • the fixing hole 318 is fitted into the fixed shaft portion 316 as shown in FIG. 43, and the retaining portion 322 is fitted into the retaining hole 320 as shown in FIG.
  • the base end of the wire 60 can be secured only by fitting the fixing hole 318 to the fixed shaft portion 316 and fitting the retaining portion 322 to the retaining hole 320.
  • the movable member 96 can be attached.
  • the base end of the wire 60 can be moved to the movable member only by pulling out the fixing hole 318 from the fixed shaft portion 316 after pulling out the retaining portion 322 from the retaining hole 320. 96 can be removed.
  • the attachment structure 310 of the seventh embodiment similarly to the attachment structure 170 of the first embodiment, the attachment / detachment operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed. It can be carried out.
  • the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
  • the fixed shaft portion 316 is provided in the movable member 96 and the fixing hole 318 is provided in the attachment member 312.
  • the present invention is not limited to this, and the fixed hole 318 is provided in the movable member 96.
  • a fixed shaft portion 316 may be provided.
  • the retaining member 312 is provided with the retaining hole 320, and the movable member 96 is provided with the retaining portion 322.
  • the present invention is not limited thereto, and the mounting member 312 is provided with the retaining portion 322.
  • 96 may be provided with a retaining hole 320.
  • FIG. 44 is a perspective view of the mounting structure 330
  • FIG. 45 is an assembly perspective view of the mounting structure 330
  • FIG. 46 is a cross-sectional view showing the main configuration of the mounting structure 330
  • FIG. 47 is an explanatory view showing a state where a shaft portion 334, which will be described later, is broken by the pressing portion 346.
  • the attachment structure 310 includes a movable member 96 and an attachment member 332.
  • the attachment member 332 is provided at a shaft portion 334 extending in the axial direction of the wire 60, a small-diameter portion 336 formed at the center portion in the longitudinal axis direction of the shaft portion 334, and one end portion of the shaft portion 334.
  • a first locking portion 338 and a second locking portion 340 provided at the other end of the shaft portion 334 are provided.
  • the first locking portion 338 has a stopper portion 338A having a diameter larger than the diameter of the shaft portion 334 and a knob portion 338B formed on the stopper portion 338A.
  • the second locking portion 340 includes a stopper portion 340A having a diameter larger than the diameter of the shaft portion 334 and a knob portion 340B formed on the stopper portion 340A.
  • the beam portion 160 of the movable member 96 includes a fixed groove 342 that receives the shaft portion 334, and a stopper portion 338 ⁇ / b> A and a second lock portion of the first locking portion 338 when the shaft portion 334 is received in the fixed groove 342.
  • 340 is abutting against the stopper portion 340A of the 340 and restricts the movement of the shaft portion 334 in the longitudinal axis direction, and a shaft formed when the shaft portion 334 is accommodated in the fixed groove 342 formed in the fixed groove 342.
  • a convex pressing portion 346 (see FIG. 46) that is in contact with the central portion of the portion 334 is provided.
  • the retaining portion 344 is provided with a pair of retaining pieces 344A and 344A and a pair of retaining portions 344A and 344A that are disposed with a gap along the longitudinal direction of the shaft portion 334 in a direction approaching each other.
  • the elastic member 344B corresponds to the biasing member of the present invention.
  • the knobs 338B and 340B are picked with fingers, and the shaft part 334 is urged by the elastic members 344B and 344B from the gap between the pair of retaining pieces 344A and 344A.
  • the fixing groove 342 To be accommodated in the fixing groove 342. Accordingly, the axial movement of the shaft portion 334 is restricted by the retaining portion 344, and the shaft portion 334 is prevented from being detached from the fixing groove 343 by the pair of retaining portions 344A and 344A.
  • the base end of the wire 60 can be attached to the movable member 96 only by the operation of accommodating the shaft portion 334 in the fixed groove 342.
  • the wire 60 can be obtained simply by dividing the shaft portion 334 into the two shaft portions 334A and 334A and pulling out the two shaft portions 334A and 334A from the fixing groove 342. Can be removed from the movable member 96.
  • the attachment / detachment operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 can be easily performed in the same manner as the attachment structure 170 of the first embodiment. It can be carried out.
  • the rinsing performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
  • a duodenoscope has been exemplified and described as the endoscope 10.
  • the endoscope is provided with an upright table that adjusts the leading direction of the treatment tool at the distal end portion of the insertion portion, ultrasonic endoscope
  • the present invention can be applied to various endoscopes such as mirrors.

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Abstract

Provided is an endoscope with which it is possible to improve the cleanability of the endoscope while easily attaching and detaching a proximal end of a wire to and from a raising mechanism. The endoscope comprises: a movable member (96) that is disposed and exposed on the exterior of a manipulation part (22), and operates in tandem with the manipulation of a raising lever (20); a sleeve (156) that is disposed and exposed on the exterior of the manipulation part (22), and rotatably supports the movable member (96) on the manipulation part (22); a first bearing part (162) that is provided on the mobile member (96), has a closed-bottom recess (163) formed on an inner surface facing the manipulation part (22), and accommodates the sleeve (156) in the recess (163) and covers the sleeve (156); an O-ring (158) disposed between the outer circumferential surface of the sleeve (156) and the inner circumferential surface of the recess (163); a wire (60) that is linked at a distal end thereof to a raisable platform (30), and at a proximal end thereof to the movable member (96); and an attachment member (98) that is provided at the proximal end of the wire (60) and detachably engages with the movable member (96).

Description

内視鏡Endoscope
　本発明は内視鏡に係り、特に挿入部の先端部に処置具の導出方向を変更する処置具起立台を備えた内視鏡に関する。 The present invention relates to an endoscope, and more particularly, to an endoscope provided with a treatment instrument stand that changes the direction in which a treatment instrument is led out at the distal end of an insertion portion.
　内視鏡では、手元操作部（以下、「操作部」と言う。）に設けられた処置具導入口から各種の処置具を導入し、この処置具を、挿入部の先端部材に開口した処置具導出口から外部に導出して処置に用いている。例えば十二指腸鏡では、鉗子又は造影チューブ等の処置具が使用され、超音波内視鏡では穿刺針等の処置具が使用される。このような処置具は、被検体内の所望の位置を処置するために、処置具導出口から導出される処置具の導出方向を変更する必要がある。このため先端部材には処置具起立台（以下、「起立台」と言う。）が設けられ、また操作部には、起立台の姿勢を起立位置と倒伏位置との間で変更させる処置具起立機構が設けられている。 In an endoscope, various treatment instruments are introduced from a treatment instrument introduction port provided in a hand operation section (hereinafter referred to as “operation section”), and the treatment instrument is opened to the distal end member of the insertion section. Derived from the device outlet to the outside and used for treatment. For example, a treatment tool such as forceps or a contrast tube is used in a duodenoscope, and a treatment tool such as a puncture needle is used in an ultrasonic endoscope. Such a treatment tool needs to change the derivation direction of the treatment tool derived from the treatment instrument outlet in order to treat a desired position in the subject. For this reason, a treatment instrument stand (hereinafter referred to as “stand stand”) is provided on the distal end member, and a treatment instrument stand for changing the posture of the stand between the standing position and the lying position is provided on the operation unit. A mechanism is provided.
　処置具起立機構としては、起立台にワイヤ（鉗子起上ワイヤとも言う。）の先端部を直接取り付けたワイヤ牽引式の機構が知られている（特許文献１参照）。この機構は、操作部に備えられた起立操作レバー（鉗子起上レバーとも言う。）に、ワイヤの基端側を連結し、起立操作レバーによってワイヤを押し引き操作することで起立台を回動軸回りに回転させて、起立位置と倒伏位置との間でその姿勢を変更させるものである。 As a treatment instrument stand-up mechanism, a wire pulling type mechanism is known in which the tip of a wire (also referred to as a forceps raising wire) is directly attached to a stand (see Patent Document 1). This mechanism connects the proximal end side of the wire to a standing operation lever (also referred to as a forceps raising lever) provided in the operation unit, and rotates the stand by pushing and pulling the wire with the standing operation lever. It is rotated around an axis to change its posture between the standing position and the lying position.
　より具体的に説明すると、引用文献１の操作部には、操作部を手で保持するためのグリップ部と、アングルノブとが設けられている。この操作部には、ワイヤ開口部がグリップ部の下方に、また駆動軸開口部がグリップ部に設けられており、ワイヤ開口部からはワイヤの基端が導出され、駆動軸開口部からは、鉗子起上レバーにより移動される駆動軸の先端が導出される。駆動軸の先端とワイヤの基端とは、接続具に取り外し可能に連結されており、接続具を覆う保護カバーが操作部に着脱自在に設けられている。 More specifically, the operation part of the cited document 1 is provided with a grip part for holding the operation part by hand and an angle knob. In this operation portion, the wire opening is provided below the grip portion, and the drive shaft opening is provided in the grip portion. The base end of the wire is led out from the wire opening, and from the drive shaft opening, The tip of the drive shaft moved by the forceps raising lever is derived. The distal end of the drive shaft and the proximal end of the wire are detachably coupled to the connection tool, and a protective cover that covers the connection tool is detachably provided on the operation unit.
　一方、特許文献２には、制御ハンドルの基端からケーブルコードの基端を導出させて、ケーブルコードの基端にコレットを接続した内視鏡が開示されている。コレットは、ナットに締結され、且つ操作レバーによって前後方向に移動する。 On the other hand, Patent Document 2 discloses an endoscope in which a base end of a cable cord is led out from a base end of a control handle and a collet is connected to the base end of the cable cord. The collet is fastened to the nut and is moved in the front-rear direction by the operation lever.
特開平６－３１５４５８号公報JP-A-6-315458 欧州特許第１７５９６２６号明細書EP 1759626
　しかしながら、特許文献１の内視鏡は、起立操作機構である駆動軸とワイヤの基端とを接続する接続具が、操作部の狭隘な内部に収容されている構成なので、起立操作機構に対するワイヤの基端の着脱操作が煩雑になるという問題があった。 However, the endoscope of Patent Document 1 has a configuration in which a connecting tool that connects the drive shaft, which is an upright operation mechanism, and the proximal end of the wire is housed in a narrow interior of the operation unit. There has been a problem that the operation of attaching and detaching the base end of this is complicated.
　また、特許文献１の内視鏡は、接続具を操作部の内部に収容した分だけ操作部が大型化するという問題があった。 Also, the endoscope disclosed in Patent Document 1 has a problem that the operation unit is enlarged by the amount that the connection tool is accommodated in the operation unit.
　一方、特許文献２の内視鏡は、ケーブルコードを制御ハンドルの外部に導出させて、ケーブルコードの先端をコレット及びナットに着脱自在に装着しているが、その着脱操作が煩雑であった。 On the other hand, in the endoscope of Patent Document 2, the cable cord is led out to the outside of the control handle and the tip of the cable cord is detachably attached to the collet and the nut. However, the attaching / detaching operation is complicated.
　また、内視鏡は、各種の検査又は処置に使用されると、内視鏡全体も洗浄される。この際、特許文献２の内視鏡では、制御ハンドルの外部に露出しているケーブルコードの先端、コレット及びナットも洗浄する必要があるが、ケーブルコードの先端、コレット及びナットは小型部品であるので、このような小型部品の洗浄には相当な手間と時間がかかるという問題があった。 Also, when the endoscope is used for various examinations or treatments, the entire endoscope is also cleaned. At this time, in the endoscope of Patent Document 2, it is necessary to clean the tip of the cable cord, the collet and the nut exposed to the outside of the control handle, but the tip of the cable cord, the collet and the nut are small parts. Therefore, there has been a problem that it takes considerable time and labor to clean such small parts.
  このように、いずれの従来の技術においても、起立操作機構に対するワイヤの基端の着脱操作を容易に行いつつ、内視鏡の洗浄性を向上させることを可能する技術は未だ十分なものとはいえなかった。 As described above, in any of the conventional techniques, a technique capable of improving the cleaning performance of the endoscope while easily performing the attaching / detaching operation of the proximal end of the wire with respect to the standing operation mechanism is still insufficient. I couldn't.
　本発明はこのような事情に鑑みてなされたもので、起立操作機構に対するワイヤの基端の着脱操作を容易に行いつつ、内視鏡の洗浄性を向上させることができる内視鏡を提供することを目的とする。 The present invention has been made in view of such circumstances, and provides an endoscope capable of improving the cleanability of the endoscope while easily performing the attaching / detaching operation of the proximal end of the wire with respect to the standing operation mechanism. For the purpose.
　本発明の目的を達成するために、本発明の内視鏡は、操作部材が設けられた操作部と、操作部の先端側に設けられた挿入部と、挿入部の先端部に設けられた処置具起立台と、操作部の外部に露出配置され、操作部材の操作に連動して動作する可動部材と、操作部の外部に露出配置されて、可動部材を操作部に回転自在に支持する第１の軸部と、可動部材の一端側に備えられた第１の軸受部であって、操作部に対向する内側面に有底の凹部が形成され、凹部に第１の軸部を収容することにより第１の軸部を覆う第１の軸受部と、第１の軸部の外周面と第１の軸受部の凹部の内周面との間に配置されたシール部材と、先端側が処置具起立台に連結され、基端側が可動部材に連結され、可動部材の動作に応じて押し引きされることにより処置具起立台を動作させる起立操作ワイヤと、起立操作ワイヤの基端に設けられ、可動部材に着脱自在に係合する取付部材と、を備える。 In order to achieve an object of the present invention, an endoscope of the present invention is provided with an operation portion provided with an operation member, an insertion portion provided on the distal end side of the operation portion, and a distal end portion of the insertion portion. The treatment instrument stand, a movable member exposed outside the operation unit and operating in conjunction with the operation of the operation member, and an exposure member arranged outside the operation unit to rotatably support the movable member on the operation unit. A first shaft portion and a first bearing portion provided on one end side of the movable member, wherein a bottomed recess is formed on an inner surface facing the operation portion, and the first shaft portion is accommodated in the recess. A first bearing portion covering the first shaft portion, a seal member disposed between the outer peripheral surface of the first shaft portion and the inner peripheral surface of the concave portion of the first bearing portion, and the distal end side Connected to the treatment instrument stand, the proximal end side is connected to the movable member, and the treatment instrument is raised by being pushed and pulled according to the movement of the movable member. And standing operation wire for operating the platform, provided at the base end of the rising operation wire, comprising a mounting member engaged detachably to the movable member.
　本発明の一形態は、第１の軸部は、操作部の操作を可動部材に伝達する軸部であることが好ましい。 In one embodiment of the present invention, the first shaft portion is preferably a shaft portion that transmits the operation of the operation portion to the movable member.
　本発明の一形態は、可動部材の他端側に備えられた第２の軸受部であって、操作部に対向する内側面から内側面とは反対側の外側面に向けた貫通孔を有する第２の軸受部と、貫通孔に挿入されて操作部に固定され、貫通孔を介して第２の軸受部を操作部に軸支する第２の軸部と、貫通孔の外側面側の開口部を閉塞する閉塞部材と、を有することが好ましい。 One aspect of the present invention is a second bearing portion provided on the other end side of the movable member, and has a through hole from an inner surface facing the operation portion to an outer surface opposite to the inner surface. A second bearing portion, a second shaft portion inserted into the through hole and fixed to the operation portion, and pivotally supporting the second bearing portion to the operation portion via the through hole; and an outer surface side of the through hole And a closing member that closes the opening.
　本発明の一形態は、可動部材と取付部材とのいずれか一方には係合穴が設けられ、他方には係合穴に着脱自在に係合する係合部が設けられることが好ましい。 In one embodiment of the present invention, it is preferable that an engagement hole is provided in one of the movable member and the attachment member, and an engagement portion that is detachably engaged with the engagement hole is provided in the other.
　本発明の一形態は、係合部には、係合穴に弾性変形して係合する弾性変形部が設けられることが好ましい。 In one embodiment of the present invention, the engaging portion is preferably provided with an elastically deforming portion that is elastically deformed and engaged with the engaging hole.
　本発明の一形態は、弾性変形部には、係合穴の縁部に係止する弾性変形可能な一対の爪部が形成され、係合穴と係合部とを係合または係合解除する際に、一対の爪部を弾性変形により互いに近づける方向に変位させることが好ましい。 In one embodiment of the present invention, the elastically deforming portion is formed with a pair of elastically deformable claws that are engaged with the edge of the engaging hole, and engages or disengages the engaging hole and the engaging portion. In doing so, it is preferable to displace the pair of claw portions in a direction to approach each other by elastic deformation.
　本発明の一形態は、係合部は、係合穴に挿入される筒状部を有し、弾性変形部は、筒状部の先端部に設けられたすり割り部によって構成され、筒状部の先端部が係合穴に挿入される際、すり割り部は弾性変形により縮径可能に構成されることが好ましい。 In one embodiment of the present invention, the engaging portion has a cylindrical portion that is inserted into the engaging hole, and the elastically deforming portion is configured by a slit portion provided at a tip portion of the cylindrical portion. It is preferable that the slit portion is configured to be able to be reduced in diameter by elastic deformation when the distal end portion of the portion is inserted into the engagement hole.
　本発明の一形態は、係合穴は、第１幅を有する幅狭部と、第１幅よりも大きい第２幅を有する幅広部とを有し、係合部は、第１幅以下の外径を有する軸部と、軸部の先端に設けられ、第１幅よりも大きく且つ第２幅よりも小さい外径を有する拡径部とを有することが好ましい。 In one embodiment of the present invention, the engagement hole has a narrow portion having a first width and a wide portion having a second width larger than the first width, and the engagement portion has a first width or less. It is preferable to have a shaft portion having an outer diameter and a diameter-increased portion provided at the tip of the shaft portion and having an outer diameter larger than the first width and smaller than the second width.
　本発明の一形態は、係合穴は、第１幅を有する幅狭部と、第１幅よりも大きい第２幅を有する幅広部とを有し、係合部は、第１幅以下の外径を有する軸部と、軸部の先端に設けられ、第２幅よりも大きい外径を有し且つ複数のすり割り溝が形成された、弾性変形部となる拡径部とを有し、拡径部が幅広部に挿入される際、拡径部は、複数のすり割り溝によって弾性変形して縮径可能に構成されることが好ましい。 In one embodiment of the present invention, the engagement hole has a narrow portion having a first width and a wide portion having a second width larger than the first width, and the engagement portion has a first width or less. A shaft portion having an outer diameter, and a diameter-enlarging portion that is provided at the tip of the shaft portion, has an outer diameter larger than the second width, and is formed with a plurality of slit grooves, serving as an elastic deformation portion. When the enlarged diameter portion is inserted into the wide portion, the enlarged diameter portion is preferably configured to be elastically deformable by a plurality of slits so that the diameter can be reduced.
　本発明の一形態は、係合穴は、幅狭部と幅広部との間で軸部を移動させる際に、軸部の外周面に当接することにより軸部に摩擦抵抗を付与する摩擦抵抗部を有することが好ましい。 In one aspect of the present invention, the engagement hole provides friction resistance to the shaft portion by contacting the outer peripheral surface of the shaft portion when the shaft portion is moved between the narrow portion and the wide portion. It is preferable to have a part.
　本発明の一形態は、可動部材と取付部材とのいずれか一方には起立操作ワイヤの軸線方向に垂直な方向に延在する円筒体が設けられ、他方には円筒体の外周に回転自在に係合する環状体が設けられ、円筒体と環状体との相対回転を規制する回転規制ストッパを備えることが好ましい。 In one embodiment of the present invention, a cylindrical body extending in a direction perpendicular to the axial direction of the standing operation wire is provided on one of the movable member and the mounting member, and the other is rotatable on the outer periphery of the cylindrical body. It is preferable that an annular body to be engaged is provided and a rotation restricting stopper for restricting relative rotation between the cylindrical body and the annular body is provided.
　本発明の一形態は、取付部材には、起立操作ワイヤの軸線方向に垂直な方向に延在する軸部と、軸部の長手軸に垂直な方向に延在する連結部と、連結部の軸部と反対側に設けられた係止部とが設けられ、可動部材には、軸部が挿入される装着穴と、装着穴に軸部が挿入された状態で軸部の長手軸を中心に軸部を回転させたときに係止部が係止される係止溝部とが設けられることが好ましい。 In one embodiment of the present invention, the attachment member includes a shaft portion extending in a direction perpendicular to the axial direction of the standing operation wire, a connecting portion extending in a direction perpendicular to the longitudinal axis of the shaft portion, A locking portion provided on the opposite side of the shaft portion is provided, and the movable member has a mounting hole into which the shaft portion is inserted, and a longitudinal axis of the shaft portion with the shaft portion being inserted into the mounting hole. It is preferable that a locking groove portion that locks the locking portion when the shaft portion is rotated is provided.
　本発明の一形態は、連結部には、連結部の延在方向に沿ったワイヤ溝部であって、係止部を係止溝部に係止させたときに起立操作ワイヤを収容するワイヤ溝部が設けられることが好ましい。 In one form of the present invention, the connecting portion includes a wire groove portion along the extending direction of the connecting portion, the wire groove portion accommodating the standing operation wire when the locking portion is locked to the locking groove portion. It is preferable to be provided.
　本発明の一形態は、取付部材には、一対の爪部と、一対の爪部を互いに近づける方向に付勢する付勢部材と、付勢部材の付勢力に抗して一対の爪部を互いに遠ざかる方向に移動させるための摘まみ部とが設けられ、可動部材には、付勢部材の付勢力により一対の爪部が装着される一対の装着穴が設けられることが好ましい。 In one embodiment of the present invention, the attachment member includes a pair of claw portions, a biasing member that biases the pair of claw portions in a direction to approach each other, and a pair of claw portions against the biasing force of the biasing member. It is preferable that a knob for moving in a direction away from each other is provided, and the movable member is provided with a pair of mounting holes in which the pair of claws are mounted by the biasing force of the biasing member.
　本発明の一形態は、可動部材と取付部材とのいずれか一方には固定軸部が設けられ、他方には固定軸部が嵌合される固定穴が設けられ、可動部材と取付部材とのいずれか一方には抜け止め孔が設けられ、他方には抜け止め孔に嵌合される抜け止め部が設けられることが好ましい。 In one embodiment of the present invention, a fixed shaft portion is provided in one of the movable member and the attachment member, and a fixed hole into which the fixed shaft portion is fitted is provided in the other, and the movable member and the attachment member It is preferable that either one is provided with a retaining hole, and the other is provided with a retaining part fitted to the retaining hole.
　本発明の一形態は、取付部材には、起立操作ワイヤの軸線方向に延在する軸部と、軸部の長手軸方向の中央部に形成された小径部と、軸部の一方の端部に設けられた第１係止部と、軸部の他方の端部に設けられた第２係止部とが設けられ、可動部材には、軸部を収容する固定溝と、固定溝に軸部が収容されたときに第１係止部と第２係止部とに当接されて軸部の長手軸方向の移動を規制する抜け止め部と、固定溝に形成されて固定溝に軸部が収容されたときに軸部の中央部に当接される凸状の押し当て部と、が設けられることが好ましい。 In one embodiment of the present invention, the mounting member includes a shaft portion extending in the axial direction of the standing operation wire, a small diameter portion formed at a central portion in the longitudinal axis direction of the shaft portion, and one end portion of the shaft portion. A first locking portion provided on the shaft and a second locking portion provided on the other end of the shaft portion, and the movable member includes a fixed groove for receiving the shaft portion, and a shaft in the fixed groove. A retaining portion that is in contact with the first locking portion and the second locking portion when the portion is received and restricts movement of the shaft portion in the longitudinal axis direction; It is preferable that a convex pressing portion that is brought into contact with the central portion of the shaft portion when the portion is accommodated is provided.
　本発明の一形態は、抜け止め部は、軸部の長手方向に沿って互いに隙間をもって配置された一対の抜け止め片と、一対の抜け止め片を互いに近づく方向に付勢する付勢部材と、を有し、軸部は、一対の抜け止め片の間の隙間から付勢部材の付勢力に抗して固定溝に収容されることが好ましい。 In one embodiment of the present invention, the retaining portion includes a pair of retaining pieces arranged with a gap along the longitudinal direction of the shaft portion, and a biasing member that biases the pair of retaining pieces in a direction approaching each other. The shaft portion is preferably accommodated in the fixing groove against the urging force of the urging member from the gap between the pair of retaining pieces.
　本発明によれば、起立操作機構に対するワイヤの基端の着脱操作を容易に行いつつ、内視鏡の洗浄性を向上させることができる内視鏡を提供することができる。 According to the present invention, it is possible to provide an endoscope capable of improving the cleaning performance of the endoscope while easily performing the attaching / detaching operation of the proximal end of the wire with respect to the standing operation mechanism.
実施形態に係る内視鏡を備えた内視鏡システムの構成図Configuration diagram of an endoscope system including an endoscope according to an embodiment 起立台が倒伏位置に位置している先端部材の斜視図Perspective view of the tip member where the stand is located in the lying position 起立台が起立位置に位置している先端部材の斜視図The perspective view of the front-end | tip member in which the stand is located in the standing position 起立台の拡大斜視図Enlarged perspective view of the stand 先端部材に対する起立台の取り付け構造を示した要部断面図Cross-sectional view of the main part showing the mounting structure of the stand for the tip member 図１に示した操作部の一方の側面に対向する他方の側面を図示した斜視図The perspective view which illustrated the other side surface which opposes one side surface of the operation part shown in FIG. 係合用誘導部を介して係合部が収容部に収容された拡大斜視図Enlarged perspective view in which the engaging portion is accommodated in the accommodating portion via the engaging guide portion 係合部が係合用誘導部に誘導されて収容部に収容される動作説明図Operation explanatory view in which the engaging portion is guided to the engaging guiding portion and is accommodated in the accommodating portion. 起立操作機構の全体構成を示した構成図Configuration diagram showing the overall configuration of the standing operation mechanism 図９の起立操作機構の側面図Side view of the standing operation mechanism of FIG. 操作部に取り付けられた可動部材を一方向側から見た拡大斜視図An enlarged perspective view of the movable member attached to the operation unit as seen from one side. 操作部に取り付けられた可動部材を他方向側から見た拡大斜視図An enlarged perspective view of the movable member attached to the operation unit as seen from the other direction side 図１２の１３－１３線に沿った操作部の断面図Sectional view of the operation section along line 13-13 in FIG. 操作部に可動部材を取り付ける前の状態を示した断面図Sectional drawing which showed the state before attaching a movable member to an operation part 第１の軸受部の凹部にスリーブを収容する直前の状態を示した断面図Sectional drawing which showed the state just before accommodating a sleeve in the recessed part of a 1st bearing part 第１の軸受部の凹部にスリーブを収容した状態を示した断面図Sectional drawing which showed the state which accommodated the sleeve in the recessed part of a 1st bearing part 第２の軸受部と操作部との間にスペーサを配置した状態を示した断面図Sectional drawing which showed the state which has arrange | positioned the spacer between the 2nd bearing part and the operation part 第１実施形態の取付構造の斜視図The perspective view of the attachment structure of 1st Embodiment 図１８に示した取付構造を左側から見た斜視図The perspective view which looked at the attachment structure shown in FIG. 18 from the left side ワイヤ組立体の斜視図Perspective view of wire assembly 取付部材の正面図Front view of mounting member 導入口と可動部材とを示した延設部の斜視図The perspective view of the extension part which showed the inlet and the movable member 導入口からワイヤを係合部材を先頭にして挿入している説明図Explanatory drawing which has inserted the wire with the engaging member at the head from the inlet ワイヤの先端が起立台に連結された状態の取付部材の説明図Explanatory drawing of the attachment member in the state where the tip of the wire is connected to the stand 可動部材に取付部材が連結された説明図Explanatory drawing with mounting member connected to movable member 第１実施形態の取付構造の変形例を示した説明図Explanatory drawing which showed the modification of the attachment structure of 1st Embodiment 図２６に示した取付構造の要部断面図Cross-sectional view of the main part of the mounting structure shown in FIG. 第２実施形態の取付構造の斜視図The perspective view of the attachment structure of 2nd Embodiment 図２８に示した取付構造の組立斜視図Assembly perspective view of the mounting structure shown in FIG. 図２８に示した取付構造の要部断面図Cross-sectional view of the main part of the mounting structure shown in FIG. 係合穴に対する係合部の大きさを示した平面図The top view which showed the size of the engaging part to the engaging hole 第３実施形態の取付構造の組立斜視図Assembly perspective view of mounting structure of third embodiment 係合穴に対する係合部の大きさを示した係合穴の平面図A plan view of the engagement hole showing the size of the engagement portion with respect to the engagement hole 第４実施形態の取付構造の斜視図The perspective view of the attachment structure of 4th Embodiment 図３４に示した取付構造の組立斜視図Assembly perspective view of the mounting structure shown in FIG. 第５実施形態の取付構造の斜視図The perspective view of the attachment structure of 5th Embodiment 図３６に示した取付構造の組立斜視図36 is an assembled perspective view of the mounting structure shown in FIG. 図３６に示した取付構造の組立斜視図36 is an assembled perspective view of the mounting structure shown in FIG. 第６実施形態の取付構造の斜視図The perspective view of the attachment structure of 6th Embodiment 図３９に示した取付構造の組立斜視図Assembly perspective view of the mounting structure shown in FIG. 第７実施形態の取付構造の斜視図The perspective view of the attachment structure of 7th Embodiment 図４１に示した取付構造の組立斜視図41 is an assembled perspective view of the mounting structure shown in FIG. 図４１に示した取付構造の組立斜視図41 is an assembled perspective view of the mounting structure shown in FIG. 第８実施形態の取付構造の斜視図The perspective view of the attachment structure of 8th Embodiment 図４４に示した取付構造の組立斜視図44 is an assembled perspective view of the mounting structure shown in FIG. 図４４に示した取付構造の要部構成を示した断面図Sectional drawing which showed the principal part structure of the attachment structure shown in FIG. 軸部が押し当て部によって破断される状態を示した説明図An explanatory view showing a state in which the shaft portion is broken by the pressing portion.
　以下、添付図面に従って本発明に係る内視鏡の好ましい実施形態について詳説する。 Hereinafter, preferred embodiments of the endoscope according to the present invention will be described in detail with reference to the accompanying drawings.
　図１は、本発明の実施形態に係る内視鏡１０を備えた内視鏡システム１２の構成図である。内視鏡システム１２は、内視鏡１０、プロセッサ装置１４、光源装置１６及びディスプレイ１８を備える。なお、図１には、内視鏡システム１２にて使用される処置具５６も図示されている。 FIG. 1 is a configuration diagram of an endoscope system 12 including an endoscope 10 according to an embodiment of the present invention. The endoscope system 12 includes an endoscope 10, a processor device 14, a light source device 16, and a display 18. FIG. 1 also shows a treatment instrument 56 used in the endoscope system 12.
　内視鏡１０は、操作部材である起立操作レバー２０を備えた操作部２２と、操作部２２の先端側に設けられた挿入部２４と、を備える。 The endoscope 10 includes an operation unit 22 that includes an upright operation lever 20 that is an operation member, and an insertion unit 24 that is provided on the distal end side of the operation unit 22.
　また、挿入部２４の先端部２６の構成を示した図２及び図３の斜視図の如く、挿入部２４の先端部２６には、先端部材２８が設けられ、先端部材２８には後述する起立台３０が取り付けられる。図２は、起立台３０が倒伏位置に位置された先端部材２８の斜視図であり、図３は、起立台３０が起立位置に位置された先端部材２８の斜視図である。 Further, as shown in the perspective views of FIGS. 2 and 3 showing the configuration of the distal end portion 26 of the insertion portion 24, the distal end portion 26 of the insertion portion 24 is provided with a distal end member 28. A base 30 is attached. FIG. 2 is a perspective view of the tip member 28 in which the upright stand 30 is located in the lying position, and FIG. 3 is a perspective view of the tip member 28 in which the stand 30 is located in the upright position.
　なお、以下の説明において、図１から図３のＺ（＋）方向を上方向と称し、Ｚ（－）方向を下方向と称し。また、Ｘ（＋）方向を右方向と称し、Ｘ（－）方向を左方向と称する。さらに、Ｙ（＋）方向を先端側方向と称し、Ｙ（－）方向を基端側方向と称する。 In the following description, the Z (+) direction in FIGS. 1 to 3 is referred to as the upward direction, and the Z (−) direction is referred to as the downward direction. The X (+) direction is referred to as the right direction, and the X (−) direction is referred to as the left direction. Furthermore, the Y (+) direction is referred to as the distal end side direction, and the Y (−) direction is referred to as the proximal end side direction.
　図１に戻り、操作部２２は、起立操作レバー２０が設けられた操作部本体３２と、操作部本体３２に連接された把持部３４と、把持部３４から先端側に向かって延出された延設部３６とを有し、延設部３６の先端側に挿入部２４の基端部が折れ止め管３８を介して連結されている。なお、把持部３４は、内視鏡１０の操作時に術者が把持する部分である。 Returning to FIG. 1, the operation unit 22 is extended toward the distal end side from the operation unit main body 32 provided with the standing operation lever 20, the gripping part 34 connected to the operation part main body 32, and the gripping part 34. The proximal end portion of the insertion portion 24 is connected to the distal end side of the extended portion 36 via a bend preventing tube 38. Note that the grasping portion 34 is a portion that the operator grasps when operating the endoscope 10.
　延設部３６とは、起立操作機構１２０（図９及び図１０）に連結された可動部材９６（図６参照）を設けるために、把持部３４の先端部から先端側に向けて延設された非把持領域の部分である。具体的には、把持部３４に設けられた処置具導入口４２の凸状のマウント部４４の先端部４４Ａから折れ止め管３８の基端部３８Ａまでの領域Ａが、延設部３６に相当する。この延設部３６の領域Ａには、円環状のフランジ４０が設けられている。なお、起立操作機構１２０及び可動部材９６については後述する。 The extending portion 36 extends from the distal end portion of the gripping portion 34 toward the distal end side in order to provide the movable member 96 (see FIG. 6) connected to the standing operation mechanism 120 (FIGS. 9 and 10). This is a portion of the non-gripping region. Specifically, the region A from the distal end portion 44A of the convex mount portion 44 of the treatment instrument introduction port 42 provided in the grasping portion 34 to the proximal end portion 38A of the folding stop tube 38 corresponds to the extending portion 36. To do. An annular flange 40 is provided in the region A of the extended portion 36. The standing operation mechanism 120 and the movable member 96 will be described later.
　操作部２２の操作部本体３２には、ユニバーサルコード４６が備えられる。ユニバーサルコード４６の先端側には、光源コネクタ５０が設けられ、この光源コネクタ５０は光源装置１６に接続される。また、光源コネクタ５０には電気コネクタ４８が分岐して設けられており、この電気コネクタ４８はプロセッサ装置１４に接続される。 A universal cord 46 is provided in the operation unit main body 32 of the operation unit 22. A light source connector 50 is provided on the distal end side of the universal cord 46, and the light source connector 50 is connected to the light source device 16. In addition, an electrical connector 48 is branched from the light source connector 50, and the electrical connector 48 is connected to the processor device 14.
　挿入部２４は、先端側から基端側に向かって先端部２６、湾曲部５２及び軟性部５４が連結されて構成される。 The insertion portion 24 is configured by connecting a distal end portion 26, a bending portion 52, and a flexible portion 54 from the distal end side toward the proximal end side.
　挿入部２４の内部には、以下の内容物が設けられる。すなわち、図１の処置具５６の先端部５６Ａを、図２の先端部材２８に導く処置具チャンネル５８と、先端部材２８から導出される処置具５６の先端部５６Ａの導出方向を変更する操作を行うための起立操作ワイヤ６０（以下、ワイヤ６０と称する。）と、ワイヤ６０の先端を先端部材２８に導く起立操作ワイヤチャンネル６２（以下、ワイヤチャンネル６２と称する。）と、図１の光源装置１６から供給される照明光を、図２の先端部材２８に導くライトガイド（不図示）と、送気送水チューブ（不図示）と、アングルワイヤ（不図示）と、信号ケーブル（不図示）等の内容物が設けられている。 The following contents are provided inside the insertion portion 24. That is, an operation for changing the leading end portion 56A of the treatment instrument 56 shown in FIG. 1 to the distal end member 28 shown in FIG. A standing operation wire 60 (hereinafter referred to as a wire 60) for performing, a standing operation wire channel 62 (hereinafter referred to as a wire channel 62) for guiding the tip of the wire 60 to the tip member 28, and the light source device of FIG. A light guide (not shown) for guiding the illumination light supplied from 16 to the tip member 28 in FIG. 2, an air / water supply tube (not shown), an angle wire (not shown), a signal cable (not shown), etc. The contents are provided.
　図１に戻り、操作部２２は、全体として略円筒状に構成されており、Ｙ（＋）－Ｙ（－）方向に沿った円筒軸Ｂを有している。操作部２２の円筒軸Ｂを含む上下方向の断面を境として一方側の側面２２Ａには、湾曲部５２を湾曲操作する一対のアングルノブ６４、６４が配置される。一対のアングルノブ６４、６４は、同軸上で回動自在に設けられる。 Referring back to FIG. 1, the operation unit 22 is configured in a substantially cylindrical shape as a whole, and has a cylindrical axis B along the Y (+)-Y (−) direction. A pair of angle knobs 64 and 64 for bending the bending portion 52 are disposed on the side surface 22A on one side with a vertical section including the cylindrical axis B of the operation portion 22 as a boundary. The pair of angle knobs 64, 64 are provided so as to be rotatable on the same axis.
　湾曲部５２は、複数のアングルリング（不図示）が相互に回動可能に連結されてなる構造体を有する。湾曲部５２は、この構造体の外周に金属線で編んだ筒状の網体を被覆し、この網体の外周面にゴム製の筒状の外皮を被覆することによって構成される。このように構成された湾曲部５２からアングルノブ６４、６４にかけて、例えば４本のアングルワイヤ（不図示）が配設されており、アングルノブ６４、６４の回動操作によって、これらのアングルワイヤを押し引き操作することにより湾曲部５２が上下左右に湾曲される。 The bending portion 52 has a structure in which a plurality of angle rings (not shown) are connected to each other so as to be rotatable. The bending portion 52 is configured by covering the outer periphery of the structure with a cylindrical net knitted with a metal wire and covering the outer peripheral surface of the net with a rubber cylindrical outer skin. For example, four angle wires (not shown) are arranged from the bending portion 52 configured as described above to the angle knobs 64 and 64. By rotating the angle knobs 64 and 64, these angle wires are connected to each other. The bending portion 52 is bent vertically and horizontally by pushing and pulling.
　軟性部５４は、弾性を有する薄い金属製の帯状板を螺旋状に巻回してなる螺旋管（不図示）を有する。軟性部５４は、この螺旋管の外側に、金属線で編んだ筒状の網体を被覆し、この網体の外周面に樹脂からなる筒状の外皮を被覆することによって構成される。 The soft part 54 has a spiral tube (not shown) formed by spirally winding a thin metal strip having elasticity. The flexible portion 54 is configured by covering the outer surface of the spiral tube with a cylindrical mesh knitted with a metal wire, and covering the outer peripheral surface of the mesh with a cylindrical outer skin made of resin.
　操作部本体３２には、送気送水ボタン６６と吸引ボタン６８とが並設されている。送気送水ボタン６６を操作することによって、図２の先端部材２８に設けられた送気送水ノズル７０からエアと水を噴出することができる。また、図１の吸引ボタン６８を操作することによって、図２の先端部材２８に設けられた処置具導出口７２を兼ねる吸引口から血液等の体液を吸引することができる。 The air / water supply button 66 and the suction button 68 are arranged in the operation unit main body 32 side by side. By operating the air / water supply button 66, air and water can be ejected from the air / water supply nozzle 70 provided in the tip member 28 of FIG. Further, by operating the suction button 68 of FIG. 1, it is possible to suck body fluid such as blood from the suction port that also serves as the treatment instrument outlet port 72 provided in the distal end member 28 of FIG.
　更に、図１の操作部２２の把持部３４には、処置具５６を導入する処置具導入口４２が設けられる。処置具導入口４２から先端部５６Ａを先頭にして導入された処置具５６は、挿入部２４に挿通された図２の処置具チャンネル５８に挿通されて、先端部材２８に設けられた処置具導出口７２から外部に導出される。 Further, a treatment instrument introduction port 42 for introducing a treatment instrument 56 is provided in the grasping section 34 of the operation section 22 of FIG. The treatment instrument 56 introduced from the treatment instrument introduction port 42 with the distal end portion 56 </ b> A at the head is inserted into the treatment instrument channel 58 of FIG. 2 inserted through the insertion section 24, and the treatment instrument guide provided on the distal end member 28 is introduced. It is led out from the outlet 72.
　また、図１の操作部２２の一方の側面２２Ａには、アングルノブ６４、６４と同軸上に起立操作レバー２０が回転自在に設けられる。起立操作レバー２０は、把持部３４を把持する術者の手によって回転操作される。起立操作レバー２０が回転操作されると、起立操作レバー２０の回転操作に連動して動作する起立操作機構１２０（図９及び図１０参照）によって、図２のワイヤ６０が押し引きされて、ワイヤ６０の先端側に連結された起立台３０の姿勢が、図３の起立位置と図２の倒伏位置との間で変更される。上述の起立操作機構１２０については後述する。 1 is provided on one side surface 22A of the operation unit 22 in FIG. 1 so as to be rotatable coaxially with the angle knobs 64 and 64. The standing operation lever 20 is rotated by an operator's hand holding the holding part 34. When the standing operation lever 20 is rotated, the wire 60 shown in FIG. 2 is pushed and pulled by the standing operation mechanism 120 (see FIGS. 9 and 10) that operates in conjunction with the rotation operation of the standing operation lever 20. The posture of the stand 30 connected to the front end side of 60 is changed between the standing position of FIG. 3 and the lying position of FIG. The above-described standing operation mechanism 120 will be described later.
　上記の如く構成された実施形態の内視鏡１０は、十二指腸鏡として用いられる側視内視鏡であり、挿入部２４が口腔を介して被検体内に挿入される。挿入部２４は、食道から胃を経て十二指腸まで挿入されて、所定の検査又は治療等の処置が行われる。 The endoscope 10 of the embodiment configured as described above is a side endoscope used as a duodenoscope, and the insertion portion 24 is inserted into the subject through the oral cavity. The insertion unit 24 is inserted from the esophagus through the stomach to the duodenum, and a predetermined examination or treatment is performed.
　実施形態では、処置具５６として、先端部５６Ａに生体組織を採取可能なカップを有する生検鉗子を例示したが、これに限定されるものではない。例えば、他の処置具として、造影チューブ又はＥＳＴ（Endoscopic Sphincterotomy：内視鏡的乳頭切開術）用ナイフ等の処置具が使用される。 In the embodiment, a biopsy forceps having a cup capable of collecting a biological tissue at the distal end portion 56A is exemplified as the treatment instrument 56, but is not limited thereto. For example, a treatment instrument such as a contrast tube or a knife for EST (Endoscopic Sphincterotomy) is used as another treatment instrument.
　次に、先端部２６について説明する。 Next, the tip portion 26 will be described.
　図２の如く、先端部２６は、先端部材２８と、先端部材２８に着脱自在に装着されるキャップ部材７６と、から構成される。キャップ部材７６は、先端側が封止された略筒状に構成され、その外周面の一部には、略矩形状の開口窓７６Ａが形成されている。キャップ部材７６が先端部材２８に装着されると、キャップ部材７６の開口窓７６Ａが先端部材２８の処置具導出口７２に連通される。これにより、処置具導出口７２から導出された処置具５６の先端部５６Ａが開口窓７６Ａから外部に導出される。 As shown in FIG. 2, the distal end portion 26 includes a distal end member 28 and a cap member 76 that is detachably attached to the distal end member 28. The cap member 76 is configured in a substantially cylindrical shape whose front end is sealed, and a substantially rectangular opening window 76A is formed on a part of the outer peripheral surface thereof. When the cap member 76 is attached to the distal end member 28, the opening window 76 </ b> A of the cap member 76 is communicated with the treatment instrument outlet 72 of the distal end member 28. As a result, the distal end portion 56A of the treatment instrument 56 led out from the treatment instrument lead-out port 72 is led out from the opening window 76A.
　キャップ部材７６は、弾性力のある材質、例えばフッ素ゴム又はシリコンゴム等のゴム材料、又はポリサルフォン又はポリカーボネイト等の樹脂材料から構成されており、その基端側には、先端部材２８に形成された溝（不図示）に係合する係合部（不図示）を有し、この係合部を先端部材２８の溝に係合することにより先端部材２８に装着される。また、キャップ部材７６は、内視鏡１０の処置が終了すると、先端部材２８から取り外されて洗浄消毒されるか、もしくはディスポーザブルとして廃棄される。 The cap member 76 is made of an elastic material, for example, a rubber material such as fluorine rubber or silicon rubber, or a resin material such as polysulfone or polycarbonate, and is formed on the distal end member 28 on the base end side thereof. An engaging portion (not shown) that engages with a groove (not shown) is provided, and the engaging portion is attached to the tip member 28 by engaging with the groove of the tip member 28. Further, when the treatment of the endoscope 10 is completed, the cap member 76 is removed from the distal end member 28 and cleaned or disinfected, or is discarded as a disposable.
　先端部材２８は、耐食性を有する金属材料で構成される。また、先端部材２８には、先端側に向けて突設された隔壁７８と、隔壁７８に対向する隔壁８０とが一体に設けられている。隔壁７８と隔壁８０との間には、起立台３０を収容する起立台収容室８２が形成される。この起立台収容室８２の基端側に、処置具５６を外部に導出させる処置具導出口７２が形成され、この処置具導出口７２に処置具チャンネル５８の先端部が接続されている。 The tip member 28 is made of a metal material having corrosion resistance. The tip member 28 is integrally provided with a partition wall 78 projecting toward the tip side and a partition wall 80 facing the partition wall 78. Between the partition wall 78 and the partition wall 80, a stand support chamber 82 for storing the stand 30 is formed. A treatment instrument outlet 72 for leading the treatment instrument 56 to the outside is formed on the proximal end side of the upright storage chamber 82, and the distal end portion of the treatment instrument channel 58 is connected to the treatment instrument outlet 72.
　処置具チャンネル５８は、図１の挿入部２４の内部に挿通される。処置具チャンネル５８の基端部は、操作部２２の内部に設けられた分岐管２００（図１０参照）の先端管２０２に接続される。 The treatment instrument channel 58 is inserted into the insertion portion 24 of FIG. The proximal end portion of the treatment instrument channel 58 is connected to the distal end tube 202 of the branch tube 200 (see FIG. 10) provided inside the operation unit 22.
　この分岐管２００は、周知な構造であり、基端部が二つの管路２０４、２０６に分岐され、一方の管路２０４の基端に処置具導入口４２が形成される。よって、処置具導入口４２から管路２０４を介して処置具チャンネル５８に導入された処置具５６の先端部５６Ａは、処置具チャンネル５８に挿通されて、図２の処置具導出口７２から起立台収容室８２に導出される。そして、起立台収容室８２に導出された処置具５６の先端部５６Ａは、起立台収容室８２に配置された起立台３０の起立位置と倒伏位置との間の姿勢に応じて導出方向が変更される。また、図１０に示した分岐管２００の他方の管路２０６の基端には、血液等の体液を吸引する吸引管２０８の先端が接続されている。 This branch pipe 200 has a well-known structure, and a base end portion is branched into two pipe lines 204 and 206, and a treatment instrument introduction port 42 is formed at the base end of one pipe line 204. Therefore, the distal end portion 56A of the treatment instrument 56 introduced from the treatment instrument introduction port 42 into the treatment instrument channel 58 via the conduit 204 is inserted into the treatment instrument channel 58 and stands up from the treatment instrument outlet 72 of FIG. It is led out to the table accommodation room 82. The leading end portion 56 </ b> A of the treatment instrument 56 led out to the upright stand accommodating chamber 82 is changed in the lead-out direction according to the posture between the standing position and the lying down position of the stand 30 arranged in the upright stand accommodating chamber 82. Is done. Further, the distal end of a suction pipe 208 that sucks body fluid such as blood is connected to the proximal end of the other pipe line 206 of the branch pipe 200 shown in FIG.
　図４は、起立台３０の拡大斜視図である。図４の如く、起立台３０の上面にはガイド面３０Ａが備えられる。このガイド面３０Ａに沿って、図１の処置具５６の先端部５６Ａが、図２のキャップ部材７６の開口窓７６Ａから外部に導出される。 FIG. 4 is an enlarged perspective view of the stand 30. As shown in FIG. 4, a guide surface 30 </ b> A is provided on the upper surface of the stand 30. Along the guide surface 30A, the distal end portion 56A of the treatment instrument 56 of FIG. 1 is led out from the opening window 76A of the cap member 76 of FIG.
　図４の如く、起立台３０は、その基部３０Ｂの両側面に回動軸部８４、８６が備えられる。この回動軸部８４、８６の軸方向は、起立台３０が先端部材２８に取り付けられた場合に、図２のＸ（＋）－Ｘ（－）方向に設定される。 As shown in FIG. 4, the stand 30 is provided with rotating shaft portions 84 and 86 on both side surfaces of the base portion 30 </ b> B. The axial directions of the rotary shaft portions 84 and 86 are set in the X (+) − X (−) direction of FIG. 2 when the upright base 30 is attached to the tip member 28.
　図５は、先端部材２８に対する起立台３０の取り付け構造を示した要部断面図である。図５の如く、回動軸部８４、８６の軸は、起立台３０の基部３０Ｂを介して同軸上に配置され、回動軸部８４が隔壁７８の凹状の軸受部７８Ａに回動自在に嵌合され、回動軸部８６が隔壁８０の凹状の軸受部８０Ａに回動自在に嵌合されている。また、回動軸部８４、８６は、それぞれ軸受部７８Ａ、８０Ａに対して回動軸部８４、８６の軸方向に所定のガタ量ｘをもって装着されている。このガタ量ｘを利用して回動軸部８４、８６を一方側に片寄せしたときに、軸受部７８Ａ、８０Ａのうち一方の軸受部の一部が露出され、その露出部にブラシを容易に挿入することができるので、軸受部７８Ａ、８０Ａの洗浄性が向上されている。 FIG. 5 is a cross-sectional view of the main part showing the mounting structure of the stand 30 with respect to the tip member 28. As shown in FIG. 5, the shafts of the pivot shafts 84 and 86 are coaxially arranged via the base 30 </ b> B of the upright 30, and the pivot shaft 84 can pivot on the concave bearing portion 78 </ b> A of the partition wall 78. The rotation shaft portion 86 is fitted to the concave bearing portion 80A of the partition wall 80 so as to be rotatable. Further, the rotation shaft portions 84 and 86 are attached to the bearing portions 78A and 80A with a predetermined backlash amount x in the axial direction of the rotation shaft portions 84 and 86, respectively. When the pivot shafts 84 and 86 are shifted to one side by using this play amount x, a part of one of the bearings 78A and 80A is exposed, and a brush can be easily applied to the exposed part. Therefore, the washability of the bearing portions 78A and 80A is improved.
　図２及び図３の如く、隔壁７８の内部には、光学系収容室８８が備えられる。光学系収容室８８の上部には、照明窓９０と観察窓９２とが隣接して配設され、また、観察窓９２に向けられた送気送水ノズル７０が先端部材２８に設けられる。送気送水ノズル７０は、挿入部２４に挿通された送気送水チューブ（不図示）を介して不図示の送気送水装置に接続され、図１に示した操作部２２の送気送水ボタン６６を操作することによって、エア又は水が送気送水ノズル７０から観察窓９２に向けて噴射される。これにより、観察窓９２が洗浄される。 As shown in FIGS. 2 and 3, an optical system accommodation chamber 88 is provided inside the partition wall 78. An illumination window 90 and an observation window 92 are disposed adjacent to each other above the optical system accommodation chamber 88, and an air / water supply nozzle 70 directed toward the observation window 92 is provided on the tip member 28. The air / water supply nozzle 70 is connected to an air / water supply device (not shown) via an air / water supply tube (not shown) inserted through the insertion portion 24, and the air / water supply button 66 of the operation portion 22 shown in FIG. Is operated, air or water is jetted from the air / water feeding nozzle 70 toward the observation window 92. Thereby, the observation window 92 is cleaned.
　また、光学系収容室８８の内部には、照明部（不図示）と撮影部（不図示）とが収容される。照明部は、照明窓９０の内側に設置された照明レンズ（不図示）と、この照明レンズに先端面が臨むように配置されたライトガイド（不図示）とを備えている。ライトガイドは、内視鏡１０の挿入部２４から操作部２２を介してユニバーサルコード４６に配設され、その基端が光源コネクタ５０を介して光源装置１６に接続される。これにより、光源装置１６からの照射光がライトガイドを介して伝達され、照明窓９０から外部に照射される。 Also, an illumination unit (not shown) and a photographing unit (not shown) are accommodated in the optical system accommodation chamber 88. The illumination unit includes an illumination lens (not shown) installed inside the illumination window 90, and a light guide (not shown) arranged so that the front end face the illumination lens. The light guide is disposed on the universal cord 46 from the insertion portion 24 of the endoscope 10 via the operation portion 22, and the base end thereof is connected to the light source device 16 via the light source connector 50. Thereby, the irradiation light from the light source device 16 is transmitted through the light guide and is irradiated to the outside from the illumination window 90.
　前述の撮影部は、観察窓９２の内側に配設された撮影光学系（不図示）とＣＭＯＳ（complementary metal oxide semiconductor）型又はＣＣＤ（charge coupled device）型の撮像素子（不図示）とを備えている。撮像素子は、図１の挿入部２４に挿通された信号ケーブル（不図示）を介してプロセッサ装置１４に接続される。この撮影部によって得られた被写体像の撮像信号は、信号ケーブルを介してプロセッサ装置１４に出力されて画像処理された後、ディスプレイ１８に被写体像として表示される。 The above-described imaging unit includes an imaging optical system (not shown) disposed inside the observation window 92 and a CMOS (complementary metal oxide semiconductor) type or CCD (charge coupled device) type imaging device (not shown). ing. The imaging device is connected to the processor device 14 via a signal cable (not shown) inserted through the insertion unit 24 in FIG. The imaging signal of the subject image obtained by the photographing unit is output to the processor device 14 via the signal cable and subjected to image processing, and then displayed on the display 18 as the subject image.
　先の説明と重複するが、まず、ワイヤ６０について説明すると、ワイヤ６０は、図２及び図３の如く、ワイヤ６０の先端が導出口７４の外部に配置されて起立台３０に連結される。また、ワイヤ６０の基端は、図６に示すように操作部２２に設けられた導入口９４の外側に配置されて可動部材９６に連結される。 Although overlapping with the above description, first, the wire 60 will be described. As shown in FIGS. 2 and 3, the wire 60 is connected to the stand 30 with the tip of the wire 60 being disposed outside the outlet 74. Further, the proximal end of the wire 60 is disposed outside the introduction port 94 provided in the operation unit 22 as shown in FIG.
　図６は、操作部２２の斜視図であり、図１に示した操作部２２の一方の側面２２Ａに対向する他方の側面２２Ｂを図示した斜視図である。 6 is a perspective view of the operation unit 22, and is a perspective view illustrating the other side surface 22B of the operation unit 22 shown in FIG. 1 opposite to the one side surface 22A.
　図６によれば、導入口９４は、操作部２２の延設部３６に設けられている。導入口９４から外側に配置されたワイヤ６０の基端には、取付部材９８が設けられており、この取付部材９８が、可動部材９６の係合穴（後述）に着脱自在に装着されている。 According to FIG. 6, the introduction port 94 is provided in the extending part 36 of the operation part 22. An attachment member 98 is provided at the proximal end of the wire 60 disposed outside the introduction port 94, and this attachment member 98 is detachably attached to an engagement hole (described later) of the movable member 96. .
　操作部２２には、可動部材９６が設けられている。可動部材９６は、操作部２２の外部に露出して配置されており、起立操作機構１２０（図９及び図１０参照）により起立操作レバー２０の操作に連動して動作する。また、実施形態では、可動部材９６は、アングルノブ６４、６４が設けられている一方の側面２２Ａと対向する他方の側面２２Ｂに回転自在に配置されているが、操作部２２に対する可動部材９６の配置位置は限定されるものではなく、操作部２２の所定の位置に回転自在に配置されていればよい。また、可動部材９６は、起立操作レバー２０の回転操作に連動して回転する従動型のレバーである。 A movable member 96 is provided in the operation unit 22. The movable member 96 is disposed so as to be exposed to the outside of the operation unit 22 and operates in conjunction with the operation of the standing operation lever 20 by the standing operation mechanism 120 (see FIGS. 9 and 10). In the embodiment, the movable member 96 is rotatably disposed on the other side surface 22B opposite to the one side surface 22A on which the angle knobs 64, 64 are provided. The arrangement position is not limited, and it is sufficient that the operation unit 22 is rotatably arranged at a predetermined position. The movable member 96 is a driven lever that rotates in conjunction with the rotation operation of the standing operation lever 20.
　起立操作機構１２０は、操作部２２の内部に配置され、起立操作レバー２０の操作に連動して可動部材９６を動作させる機構である。したがって、起立操作レバー２０を操作すると、可動部材９６が起立操作機構１２０を介して動作し、可動部材９６に連結されているワイヤ６０（図２参照）が押し引きされる。 The standing operation mechanism 120 is a mechanism that is disposed inside the operation unit 22 and operates the movable member 96 in conjunction with the operation of the standing operation lever 20. Therefore, when the standing operation lever 20 is operated, the movable member 96 operates through the standing operation mechanism 120, and the wire 60 (see FIG. 2) connected to the movable member 96 is pushed and pulled.
　次に、ワイヤ６０の先端を起立台３０に係脱自在に連結する連結構造について説明する。 Next, a connection structure for connecting the tip of the wire 60 to the stand 30 so as to be detachable will be described.
　図２及び図３に戻り、ワイヤ６０は、先端部に係合部材１００が設けられる。また、起立台３０には、係合部材１００と係脱自在に係合される収容溝１０２であって、Ｘ（＋）方向側に開口１０４が形成された収容溝１０２が設けられる。これにより、ワイヤ６０の先端に設けられた係合部材１００を、開口１０４を介して収容溝１０２に収容させることによって、ワイヤ６０の先端が起立台３０に連結される。 2 and 3, the wire 60 is provided with an engaging member 100 at the tip. Further, the stand 30 is provided with a receiving groove 102 that is detachably engaged with the engaging member 100 and has an opening 104 formed on the X (+) direction side. Thus, the engagement member 100 provided at the distal end of the wire 60 is accommodated in the accommodation groove 102 through the opening 104, so that the distal end of the wire 60 is coupled to the upright 30.
　実施形態では、係合部材１００は球体であり、収容溝１０２は球体の係合部材１００を収容する球面状凹部である。なお、係合部材１００及び収容溝１０２の形状は上記の形状に限定されるものではないが、係合部材１００を球体とし、収容溝１０２を球面状凹部とすることにより、ワイヤ６０の押し引き操作によって生じる係合部材１００と収容溝１０２との間の摺動抵抗を低減することができる。よって、ワイヤ６０の押し引き操作を円滑に行うことができる。 In the embodiment, the engagement member 100 is a sphere, and the accommodation groove 102 is a spherical recess that accommodates the sphere engagement member 100. Although the shapes of the engaging member 100 and the receiving groove 102 are not limited to the above shapes, the wire 60 can be pushed and pulled by making the engaging member 100 a sphere and the receiving groove 102 a spherical recess. The sliding resistance between the engaging member 100 and the accommodation groove 102 generated by the operation can be reduced. Therefore, the push / pull operation of the wire 60 can be performed smoothly.
　また、先端部材２８には、図３の起立位置において収容溝１０２に連設される係合用誘導部１０６が備えられる。係合用誘導部１０６は、導出口７４から導出された係合部材１００を、収容溝１０２の開口１０４に誘導する機能を備えている。導出口７４は、先端部材２８に設けられており、挿入部２４の内部に設けられたワイヤチャンネル６２を介して導入口９４（図６参照）に連通されている。 Further, the distal end member 28 is provided with an engaging guiding portion 106 that is connected to the receiving groove 102 in the standing position of FIG. The engagement guide portion 106 has a function of guiding the engagement member 100 led out from the lead-out port 74 to the opening 104 of the housing groove 102. The lead-out port 74 is provided in the distal end member 28 and communicates with the introduction port 94 (see FIG. 6) via a wire channel 62 provided in the insertion portion 24.
　このような係合用誘導部１０６を有する内視鏡１０によれば、導入口９４からワイヤ６０を、係合部材１００を先頭に導入していくと、係合部材１００はワイヤチャンネル６２（図２参照）に挿通されて、導出口７４から外部に導出される。そして、係合部材１００は、継続するワイヤ６０の導入操作によって、係合用誘導部１０６により起立台３０の収容溝１０２の開口１０４に向けて誘導されていき、開口１０４から収容溝１０２に係合される。これにより、実施形態の内視鏡１０によれば、ワイヤ６０の導入操作のみで、ワイヤ６０の係合部材１００を起立台３０の収容溝１０２に係合させることができる。 According to the endoscope 10 having such an engagement guiding portion 106, when the wire 60 is introduced from the introduction port 94 and the engagement member 100 is introduced to the head, the engagement member 100 is connected to the wire channel 62 (FIG. 2). And is led out from the outlet 74 to the outside. Then, the engaging member 100 is guided toward the opening 104 of the receiving groove 102 of the stand 30 by the engaging guiding portion 106 by the continuous introduction operation of the wire 60, and is engaged with the receiving groove 102 from the opening 104. Is done. Thereby, according to the endoscope 10 of the embodiment, the engaging member 100 of the wire 60 can be engaged with the receiving groove 102 of the stand 30 only by the introduction operation of the wire 60.
　図７は、係合用誘導部１０６を介して係合部材１００が収容溝１０２に係合された拡大斜視図である。図８は、係合部材１００が係合用誘導部１０６に誘導されて収容溝１０２に係合されるまでの動作を継時的に示した説明図である。 FIG. 7 is an enlarged perspective view in which the engaging member 100 is engaged with the receiving groove 102 via the engaging guiding portion 106. FIG. 8 is an explanatory view continuously showing the operation until the engaging member 100 is guided by the engaging guiding portion 106 and engaged with the receiving groove 102.
　図７及び図８の如く、係合用誘導部１０６は、導出口７４から導出された係合部材１００を、収容溝１０２の開口１０４まで誘導する係合用誘導路１０８と、係合用誘導路１０８内で収容溝１０２の開口１０４に連設された変形発生部１１０と、を備える。変形発生部１１０は、係合用誘導路１０８内を開口１０４に向けてＹ（＋）方向に進む係合部材１００に接触して、係合部材１００をＹ（＋）方向に誘導しつつＸ（＋）方向に誘導する。 As shown in FIGS. 7 and 8, the engaging guiding portion 106 includes an engaging guiding path 108 that guides the engaging member 100 led out from the outlet 74 to the opening 104 of the housing groove 102, and an inside of the engaging guiding path 108. And a deformation generating portion 110 connected to the opening 104 of the receiving groove 102. The deformation generation unit 110 contacts the engagement member 100 that advances in the Y (+) direction toward the opening 104 in the engagement guide path 108, and guides the engagement member 100 in the Y (+) direction X ( Guide in the + direction.
　これにより、ワイヤ６０の先端は、係合部材１００が係合用誘導路１０８に沿って開口１０４に近づくのに従って、開口１０４からしだいに遠ざかる方向（Ｘ（＋）方向）に弾性変形する。係合用誘導路１０８内を進む係合部材１００は、変形発生部１１０を通過した場合に、ワイヤ６０の復元力によりＸ（－）方向に移動して、開口１０４から収容溝１０２に係合される。 Thereby, the tip of the wire 60 is elastically deformed in a direction (X (+) direction) gradually moving away from the opening 104 as the engaging member 100 approaches the opening 104 along the engaging guide path 108. When the engagement member 100 traveling in the engagement guide path 108 passes through the deformation generating portion 110, it moves in the X (−) direction by the restoring force of the wire 60 and is engaged with the receiving groove 102 from the opening 104. The
　係合用誘導路１０８は、先端部材２８の周面２８Ａの一部を凹状に切り欠くことにより形成されており、導出口７４からＹ（＋）方向に向けてＸ（＋）方向に漸次傾斜した面である。この係合用誘導路１０８の先端側に変形発生部１１０が形成されている。 The engaging guide path 108 is formed by cutting out a part of the peripheral surface 28A of the tip member 28 into a concave shape, and gradually inclines in the X (+) direction from the outlet 74 toward the Y (+) direction. Surface. A deformation generating part 110 is formed on the distal end side of the engaging guide path 108.
　また、係合用誘導部１０６には、係合部材１００が収容溝１０２に係合された場合に、ワイヤ６０の先端側を没入させて逃がす溝１１２が形成されている。また、起立台３０の収容溝１０２の基端側にも、係合部材１００が収容溝１０２に係合された場合に、ワイヤ６０の先端側を没入させて逃がす溝１１４が形成されている。図８の紙面に直交する方向の溝１１２の幅寸法は、ワイヤ６０の直径よりも大きく、且つ変形発生部１１０を通過する係合部材１００が溝１１２に没入しないように、係合部材１００の直径よりも小さい。また、図８の紙面に直交する方向の溝１１４の幅寸法は、ワイヤ６０の直径よりも大きく、且つ収容溝１０２に係合された係合部材１００がＹ（－）方向に抜けないように、係合部材１００の直径よりも小さい。 Further, the engaging guide portion 106 is formed with a groove 112 that allows the distal end side of the wire 60 to be immersed and escaped when the engaging member 100 is engaged with the receiving groove 102. In addition, a groove 114 is formed on the proximal end side of the receiving groove 102 of the stand 30 so that when the engaging member 100 is engaged with the receiving groove 102, the distal end side of the wire 60 is immersed and released. The width dimension of the groove 112 in the direction orthogonal to the paper surface of FIG. 8 is larger than the diameter of the wire 60, and the engagement member 100 so that the engagement member 100 passing through the deformation generating portion 110 does not enter the groove 112. Smaller than the diameter. Further, the width dimension of the groove 114 in the direction orthogonal to the paper surface of FIG. 8 is larger than the diameter of the wire 60 and the engaging member 100 engaged with the receiving groove 102 does not come out in the Y (−) direction. The diameter of the engaging member 100 is smaller.
　係合用誘導部１０６は、起立台３０を起立位置に位置させた状態で係合部材１００を収容溝１０２に係合させる場合に適した形態である。つまり、収容溝１０２は、図７の如く、起立台３０が起立位置に位置した状態で、導出口７４に対向した位置に配置されている。よって、導出口７４から係合部材１００を直進させることにより、起立位置に位置した起立台３０の収容溝１０２に係合部材１００を、係合用誘導部１０６を介して係合させることができる。 The engaging guide portion 106 is a form suitable for engaging the engaging member 100 with the receiving groove 102 in a state where the stand 30 is positioned at the standing position. That is, as shown in FIG. 7, the housing groove 102 is disposed at a position facing the outlet port 74 in a state where the stand 30 is located at the standing position. Therefore, by moving the engagement member 100 straight from the outlet 74, the engagement member 100 can be engaged with the receiving groove 102 of the stand 30 positioned at the standing position via the engagement guide portion 106.
　次に、起立台３０の収容溝１０２に係合されたワイヤ６０の係合部材１００を、収容溝１０２から離脱させるための離脱構造について説明する。 Next, a detachment structure for detaching the engagement member 100 of the wire 60 engaged with the accommodation groove 102 of the stand 30 from the accommodation groove 102 will be described.
　先端部材２８には、離脱用誘導面１１６が備えられており、この離脱用誘導面１１６は、隔壁８０の上面に備えられている（図２参照）。この離脱用誘導面１１６は、Ｘ（＋）方向に向けてＺ（－）方向に傾斜したガイド面（図２、図３参照）である。また、離脱用誘導面１１６は、収容溝１０２に係合部材１００が係合されて起立台３０が倒伏位置に位置した状態で、ワイヤ６０がさらに押し込み操作された場合に、収容溝１０２内から開口１０４の外へ係合部材１００が離脱する方向にワイヤ６０を誘導する面として機能する。 The tip member 28 is provided with a detaching guide surface 116, and the detaching guide surface 116 is provided on the upper surface of the partition wall 80 (see FIG. 2). The separation guide surface 116 is a guide surface (see FIGS. 2 and 3) inclined in the Z (−) direction toward the X (+) direction. In addition, when the wire 60 is pushed further in a state where the engaging member 100 is engaged with the receiving groove 102 and the upright 30 is located at the lying down position, the separation guide surface 116 is removed from the inside of the receiving groove 102. It functions as a surface for guiding the wire 60 in the direction in which the engaging member 100 is detached from the opening 104.
　このように構成された離脱構造によれば、可動部材９６の係合穴（後述）から、ワイヤ６０の基端に設けられた取付部材（後述）を取り外し、その後、延設部３６の導入口９４からワイヤ６０を押し込み操作して、起立台３０を図３の起立位置から図２の倒伏位置に位置させる。この後、ワイヤ６０をさらに押し込み操作すると、先端部材２８の離脱用誘導面１１６によって、収容溝１０２内から開口１０４の外へ係合部材１００が離脱するＸ（＋）方向にワイヤ６０が誘導される。これにより、ワイヤ６０の復元力によって係合部材１００が、収容溝１０２内から開口１０４の外へ容易に離脱する。 According to the detachment structure configured as described above, the attachment member (described later) provided at the proximal end of the wire 60 is removed from the engagement hole (described later) of the movable member 96, and then the introduction port of the extending portion 36 is removed. The wire 60 is pushed in from 94, and the stand 30 is positioned from the standing position in FIG. 3 to the lying position in FIG. Thereafter, when the wire 60 is further pushed in, the wire 60 is guided in the X (+) direction by which the engaging member 100 is detached from the inside of the accommodation groove 102 to the outside of the opening 104 by the guide surface 116 for removal of the tip member 28. The As a result, the engaging member 100 is easily detached from the housing groove 102 to the outside of the opening 104 by the restoring force of the wire 60.
　次に、起立操作機構１２０について説明する。 Next, the standing operation mechanism 120 will be described.
　図９は、起立操作機構１２０の全体構成を示した構成図である。また、図１０は、図９の起立操作機構１２０の側面図である。なお、図９及び図１０では、操作部２２の外装ケース（不図示）を省略し、操作部２２の内部に配置された起立操作機構１２０を示している。 FIG. 9 is a configuration diagram showing the overall configuration of the standing operation mechanism 120. FIG. 10 is a side view of the standing operation mechanism 120 of FIG. 9 and 10, the exterior case (not shown) of the operation unit 22 is omitted, and the standing operation mechanism 120 disposed inside the operation unit 22 is illustrated.
　図９及び図１０に示すように、起立操作機構１２０は、起立操作レバー２０と可動部材９６とを連結し、起立操作レバー２０の回転動作を可動部材９６に伝達する動力伝達機構として機能する。 As shown in FIGS. 9 and 10, the standing operation mechanism 120 functions as a power transmission mechanism that connects the standing operation lever 20 and the movable member 96 and transmits the rotation operation of the standing operation lever 20 to the movable member 96.
　起立操作機構１２０は、起立操作レバー２０の回転運動を直線運動に変換する第１変換機構１２４と、第１変換機構１２４によって直線運動されるワイヤ１２６と、ワイヤ１２６の直線運動を回転運動に変換して可動部材９６を回転させる第２変換機構１２８と、を備える。 The standing operation mechanism 120 includes a first conversion mechanism 124 that converts the rotational motion of the standing operation lever 20 into a linear motion, a wire 126 that is linearly moved by the first conversion mechanism 124, and a linear motion of the wire 126 that is converted into a rotational motion. And a second conversion mechanism 128 that rotates the movable member 96.
　第１変換機構１２４は、起立操作レバー２０に基端が連結されたクランク部材１３０と、クランク部材１３０の先端に基端が連結された第１スライダ１３２と、第１スライダ１３２の先端に基端が連結された第２スライダ１３４と、を備えている。 The first conversion mechanism 124 includes a crank member 130 having a base end connected to the standing operation lever 20, a first slider 132 having a base end connected to the tip of the crank member 130, and a base end to the tip of the first slider 132. Are connected to each other.
　ワイヤ１２６は、ワイヤ１２６の基端が第２スライダ１３４の先端に接続され、ワイヤ１２６の先端が第２変換機構１２８に接続されている。 In the wire 126, the proximal end of the wire 126 is connected to the distal end of the second slider 134, and the distal end of the wire 126 is connected to the second conversion mechanism 128.
　上記の如く構成された第１変換機構１２４によれば、起立操作レバー２０が回転操作されると、それに連動してクランク部材１３０、第１スライダ１３２及び第２スライダ１３４が円筒軸Ｂに沿って直線運動する。これにより、ワイヤ１２６が円筒軸Ｂに沿って直線運動し、その直線運動が第２変換機構１２８に伝達される。 According to the first conversion mechanism 124 configured as described above, when the standing operation lever 20 is rotated, the crank member 130, the first slider 132, and the second slider 134 are moved along the cylindrical axis B in conjunction therewith. Move linearly. Thereby, the wire 126 moves linearly along the cylindrical axis B, and the linear motion is transmitted to the second conversion mechanism 128.
　第２変換機構１２８は、レバー１３６と、第１ギア１３８と、第２ギア１４０と、第３ギア１４２と、第４ギア１４４と、を備え、これらのギアによって減速機構が構成されている。 The second conversion mechanism 128 includes a lever 136, a first gear 138, a second gear 140, a third gear 142, and a fourth gear 144, and a reduction mechanism is configured by these gears.
　レバー１３６は、ブラケット１４６に軸部１４８を介して回転自在に支持され、ワイヤ１２６の先端が連結されている。よって、レバー１３６は、ワイヤ１２６の直線運動によって軸部１４８を中心に回転される。 The lever 136 is rotatably supported by the bracket 146 via a shaft portion 148, and the tip end of the wire 126 is connected. Therefore, the lever 136 is rotated around the shaft portion 148 by the linear motion of the wire 126.
　第１ギア１３８は、レバー１３６と一体に設けられ、軸部１４８を中心に回転される。第２ギア１４０は、第１ギア１３８と噛合され、軸部１５０を介してブラケット１４６に回転自在に支持されている。第３ギア１４２は、第２ギア１４０と一体に設けられ、且つ第２ギア１４０と同軸上に設けられている。 The first gear 138 is provided integrally with the lever 136 and is rotated about the shaft portion 148. The second gear 140 meshes with the first gear 138 and is rotatably supported by the bracket 146 via the shaft portion 150. The third gear 142 is provided integrally with the second gear 140 and is provided coaxially with the second gear 140.
　第４ギア１４４は、第３ギア１４２に噛合されている。また、第４ギア１４４には、第４ギア１４４と同軸上に回転軸１５２（図１３参照）が固定されている。回転軸１５２の基端側は、ブラケット１４６に回転自在に支持され、回転軸１５２の先端側は操作部２２の外部に配置されている。この回転軸１５２は、円盤状の回転体１５４と同軸上に設けられており、この回転体１５４は、回転軸１５２に連結されて回転軸１５２とともに回転される。また、回転体１５４は、Ｏリング１６６を介して操作部２２の開口部２３に回動自在に支持されている。このＯリング１６６によって開口部２３が封止され、操作部２２の水密性が確保されている。 The fourth gear 144 is meshed with the third gear 142. In addition, a rotation shaft 152 (see FIG. 13) is fixed to the fourth gear 144 coaxially with the fourth gear 144. A proximal end side of the rotation shaft 152 is rotatably supported by the bracket 146, and a distal end side of the rotation shaft 152 is disposed outside the operation unit 22. The rotating shaft 152 is provided coaxially with the disk-shaped rotating body 154, and the rotating body 154 is connected to the rotating shaft 152 and rotated together with the rotating shaft 152. The rotating body 154 is rotatably supported by the opening 23 of the operation unit 22 via the O-ring 166. The opening 23 is sealed by the O-ring 166, and the water tightness of the operation unit 22 is ensured.
　回転体１５４の側面には、スリーブ１５６が形成されている。このスリーブ１５６は、回転体１５４と同軸上に設けられ、スリーブ１５６の外周面に、可動部材９６の第１の軸受部１６２がＯリング１５８を介して連結されている。 A sleeve 156 is formed on the side surface of the rotating body 154. The sleeve 156 is provided coaxially with the rotating body 154, and the first bearing portion 162 of the movable member 96 is connected to the outer peripheral surface of the sleeve 156 via an O-ring 158.
　なお、実施形態においては、既述のスリーブ１５６が、可動部材９６を操作部２２に回転自在に支持する本発明の第１の軸部に相当し、Ｏリング１５８が本発明のシール部材に相当する。第１の軸受部１６２とスリーブ１５６との連結構造については後述する。 In the embodiment, the above-described sleeve 156 corresponds to the first shaft portion of the present invention that rotatably supports the movable member 96 on the operation portion 22, and the O-ring 158 corresponds to the seal member of the present invention. To do. A connection structure between the first bearing portion 162 and the sleeve 156 will be described later.
　上記の如く構成された第２変換機構１２８（図９及び図１０参照）によれば、ワイヤ１２６の直線運動がレバー１３６に伝達されると、レバー１３６とともに第１ギア１３８が回転操作され、第１ギア１３８の回転動作が第２ギア１４０及び第３ギア１４２を介して第４ギア１４４に伝達されて、第４ギア１４４が回転される。第４ギア１４４が回転されると、回転軸１５２（図１３参照）とともに回転体１５４が回転される。これにより、回転体１５４のスリーブ１５６にＯリング１５８を介して連結された可動部材９６が、スリーブ１５５の軸芯を中心に回転される。 According to the second conversion mechanism 128 (see FIGS. 9 and 10) configured as described above, when the linear motion of the wire 126 is transmitted to the lever 136, the first gear 138 is rotated together with the lever 136, The rotation operation of the first gear 138 is transmitted to the fourth gear 144 via the second gear 140 and the third gear 142, and the fourth gear 144 is rotated. When the fourth gear 144 is rotated, the rotating body 154 is rotated together with the rotating shaft 152 (see FIG. 13). As a result, the movable member 96 connected to the sleeve 156 of the rotating body 154 via the O-ring 158 is rotated about the axis of the sleeve 155.
　また、起立操作機構１２０（図９及び図１０参照）によれば、減速機構を含む第２変換機構１２８によって、起立操作レバー２０の回転動作を減速して可動部材９６に伝達している。つまり、起立操作レバー２０の操作によって動作するレバー１３６の回転角に対して、可動部材９６の第１の軸受部１６２の回転角が小さくなる。これにより、起立操作レバー２０を操作するのに必要な力をより小さくすることができ、起立操作レバー２０による起立台３０の起伏姿勢制御が容易になる。 Further, according to the standing operation mechanism 120 (see FIGS. 9 and 10), the rotation operation of the standing operation lever 20 is decelerated and transmitted to the movable member 96 by the second conversion mechanism 128 including the deceleration mechanism. That is, the rotation angle of the first bearing portion 162 of the movable member 96 is smaller than the rotation angle of the lever 136 that is operated by operating the standing operation lever 20. Thereby, the force required to operate the standing operation lever 20 can be further reduced, and the raising and lowering posture control of the standing table 30 by the standing operation lever 20 is facilitated.
　また、実施形態では、起立操作機構１２０を構成する構成要素にワイヤ１２６を用いている。ワイヤ１２６を用いることにより、以下の利点がある。すなわち、第２スライダ１３４の直線運動をレバー１３６の回転運動に変換する際に、ワイヤ１２６は、曲線的な動き（弛み）ができるので、リンク機構を設置しないで済み、スペースの制約が減る。また、第２スライダ１３４とレバー１３６とをリンク機構で連結した場合、起立操作機構１２０において力の逃げ場が少なくなるが、ワイヤ１２６を使用することにより、ワイヤ１２６が弛むことによって、力を逃がすことができるので、起立操作機構１２０にかかる負荷を低減することができる。 In the embodiment, the wire 126 is used as a component constituting the standing operation mechanism 120. The use of the wire 126 has the following advantages. That is, when the linear motion of the second slider 134 is converted into the rotational motion of the lever 136, the wire 126 can move in a curvilinear manner (slack), so that it is not necessary to install a link mechanism, and space constraints are reduced. In addition, when the second slider 134 and the lever 136 are connected by a link mechanism, a force escape field is reduced in the standing operation mechanism 120. However, by using the wire 126, the wire 126 is loosened, thereby releasing the force. Therefore, the load applied to the standing operation mechanism 120 can be reduced.
　次に、操作部２２に可動部材９６を取り付ける取付構造について図面を参照して説明する。 Next, an attachment structure for attaching the movable member 96 to the operation unit 22 will be described with reference to the drawings.
　図１１は、操作部２２に取り付けられた可動部材９６を一方向側から見た拡大斜視図であって、可動部材９６の一端側に備えられた第１の軸受部１６２を特に示した斜視図である。また、図１２は、操作部２２に取り付けられた可動部材９６を他方向側から見た拡大斜視図であって、可動部材９６の他端側に備えられた第２の軸受部１６４を特に示した斜視図である。図１３は、図１２の１３－１３線に沿った操作部２２の断面図である。 FIG. 11 is an enlarged perspective view of the movable member 96 attached to the operation unit 22 as viewed from one direction side, and is a perspective view specifically showing the first bearing portion 162 provided on one end side of the movable member 96. It is. FIG. 12 is an enlarged perspective view of the movable member 96 attached to the operation unit 22 as seen from the other direction side, and particularly shows the second bearing portion 164 provided on the other end side of the movable member 96. FIG. 13 is a cross-sectional view of the operation unit 22 taken along line 13-13 in FIG.
　図１１から図１３に示すように、可動部材９６は、平板状の梁部１６０と、梁部１６０の一端側に設けられた第１の軸受部１６２と、梁部１６０の他端側に設けられた第２の軸受部１６４とを備え、全体としてＵ字形状に構成されている。 As shown in FIGS. 11 to 13, the movable member 96 is provided on the plate-shaped beam portion 160, the first bearing portion 162 provided on one end side of the beam portion 160, and the other end side of the beam portion 160. The second bearing portion 164 is provided and is configured in a U shape as a whole.
　ここで、前述した第１の軸受部１６２とスリーブ１５６との連結構造について説明する。 Here, the connection structure between the first bearing portion 162 and the sleeve 156 described above will be described.
　図１３に示すように、第１の軸受部１６２には、操作部２２に対向する内側面１６２Ａに有底の凹部１６３が形成されている。この凹部１６３は、操作部２２に対面する側に開口を有し、この開口を介してスリーブ１５６が凹部１６３に収容されている。これにより、スリーブ１５６が外部に露出することなく第１の軸受部１６２によって覆われている。また、既述のＯリング１５８は、スリーブ１５６の外周面と凹部１６３の内周面との間に配置されている。これにより、スリーブ１５６が配置される凹部１６３の内部空間の水密性が確保されている。 As shown in FIG. 13, the first bearing portion 162 is formed with a bottomed concave portion 163 on the inner side surface 162 </ b> A facing the operation portion 22. The recess 163 has an opening on the side facing the operation unit 22, and the sleeve 156 is accommodated in the recess 163 through the opening. Thereby, the sleeve 156 is covered with the first bearing portion 162 without being exposed to the outside. The O-ring 158 described above is disposed between the outer peripheral surface of the sleeve 156 and the inner peripheral surface of the recess 163. Thereby, the water tightness of the internal space of the recessed part 163 in which the sleeve 156 is arrange | positioned is ensured.
　このような実施形態の連結構造に対して、例えば、第１の軸受部１６２に貫通孔を形成し、この貫通孔に回転軸１５２を貫通させて回転軸１５２と第１の軸受部１６２とをネジ（不図示）によって連結する連結構造の場合、貫通孔の内周面及びネジが外部に露出する。このため、貫通孔の内周面及びネジを洗浄するのに手間がかかる。 For the connection structure of such an embodiment, for example, a through hole is formed in the first bearing portion 162, and the rotation shaft 152 and the first bearing portion 162 are connected to the through hole through the rotation shaft 152. In the case of a connection structure that is connected by a screw (not shown), the inner peripheral surface of the through hole and the screw are exposed to the outside. For this reason, it takes time to clean the inner peripheral surface of the through hole and the screw.
　これに対して、実施形態の連結構造は、回転軸１５２、スリーブ１５６及び凹部１６３が外部に露出しない構造なので、第１の軸受部１６２の洗浄性を向上させることができる。 On the other hand, since the connecting structure of the embodiment is a structure in which the rotating shaft 152, the sleeve 156, and the concave portion 163 are not exposed to the outside, the cleaning performance of the first bearing portion 162 can be improved.
　したがって、実施形態の連結構造によれば、従来の内視鏡と比較して、内視鏡１０の洗浄性を向上させることができる。なお、第１の軸受部１６２の外側面１６２Ｂは、洗浄性を向上させるために平滑面とすることが好ましい。 Therefore, according to the connection structure of the embodiment, the cleaning performance of the endoscope 10 can be improved as compared with the conventional endoscope. Note that the outer surface 162B of the first bearing portion 162 is preferably a smooth surface in order to improve the cleanability.
　次に、第２の軸受部１６４と操作部２２との連結構造について説明する。 Next, a connection structure between the second bearing portion 164 and the operation portion 22 will be described.
　第２の軸受部１６４は、操作部２２に対向する内側面１６４Ａから内側面１６４Ａとは反対側の外側面１６４Ｂに向けた貫通孔１６５を有している。貫通孔１６５には、ネジとして構成された従動軸１６８が挿入され、従動軸１６８は、操作部２２に形成されたネジ穴２１に締結されて固定される。これにより、第２の軸受部１６４は、従動軸１６８を介して操作部２２に軸支される。 The second bearing portion 164 has a through hole 165 from the inner surface 164A facing the operation portion 22 toward the outer surface 164B opposite to the inner surface 164A. A driven shaft 168 configured as a screw is inserted into the through hole 165, and the driven shaft 168 is fastened and fixed to a screw hole 21 formed in the operation unit 22. As a result, the second bearing portion 164 is pivotally supported on the operation portion 22 via the driven shaft 168.
　第２の軸受部１６４において、貫通孔１６５の外側面１６４Ｂ側の開口部には、ゴム等の弾性部材で構成されたキャップ部材１６７が装着され、貫通孔１６５がキャップ部材１６７によって閉塞されている。このような連結構造においても、貫通孔１６５と従動軸１６８を外部に露出していないので、内視鏡１０の洗浄性が向上されている。 In the second bearing portion 164, a cap member 167 made of an elastic member such as rubber is attached to the opening on the outer surface 164 B side of the through hole 165, and the through hole 165 is closed by the cap member 167. . Even in such a connection structure, since the through-hole 165 and the driven shaft 168 are not exposed to the outside, the cleaning performance of the endoscope 10 is improved.
　なお、実施形態においては、従動軸１６８が本発明の第２の軸部に相当し、キャップ部材１６７が本発明の閉塞部材に相当する。また、第２の軸受部１６４と操作部２２との間には、筒状のスペーサ１６９が挿入されており、従動軸１６８はスペーサ１６９に挿入されて操作部２２に固定される。なお、第１の軸受部１６２側のスリーブ１５６と第２の軸受部１６４側の従動軸１６８の各々の軸芯は同軸上に設定されている。 In the embodiment, the driven shaft 168 corresponds to the second shaft portion of the present invention, and the cap member 167 corresponds to the closing member of the present invention. Also, a cylindrical spacer 169 is inserted between the second bearing portion 164 and the operation portion 22, and the driven shaft 168 is inserted into the spacer 169 and fixed to the operation portion 22. The shaft cores of the sleeve 156 on the first bearing portion 162 side and the driven shaft 168 on the second bearing portion 164 side are set coaxially.
　次に、図１４から図１７を参照して、操作部２２に可動部材９６を取り付ける取付手順について説明する。 Next, an attachment procedure for attaching the movable member 96 to the operation unit 22 will be described with reference to FIGS.
　図１４は、操作部２２に可動部材９６を取り付ける直前の状態を示した操作部２２の断面図である。図１４には、スリーブ１５６の外周面にＯリング１５８が装着されていることが示されている。 FIG. 14 is a cross-sectional view of the operation unit 22 showing a state immediately before the movable member 96 is attached to the operation unit 22. FIG. 14 shows that an O-ring 158 is attached to the outer peripheral surface of the sleeve 156.
　図１５は、可動部材９６の第１の軸受部１６２の凹部１６３に、スリーブ１５６を収容する直前の状態を示した操作部２２の断面図である。図１５には、第２の軸受部１６４の内側面１６４Ａが操作部２２に当接されて、その位置で凹部１６３の開口がスリーブ１５６に対面することが示されている。すなわち、第２の軸受部１６４の内側面１６４Ａが、凹部１６３にスリーブ１５６を収容するための位置決め面として機能していることが示されている。 FIG. 15 is a cross-sectional view of the operation portion 22 showing a state immediately before the sleeve 156 is accommodated in the concave portion 163 of the first bearing portion 162 of the movable member 96. FIG. 15 shows that the inner side surface 164A of the second bearing portion 164 is brought into contact with the operation portion 22, and the opening of the concave portion 163 faces the sleeve 156 at that position. That is, it is shown that the inner side surface 164A of the second bearing portion 164 functions as a positioning surface for accommodating the sleeve 156 in the recess 163.
　図１６は、第１の軸受部１６２の凹部１６３に、スリーブ１５６を収容した状態を示した操作部２２の断面図である。すなわち、図１５に示した第１の軸受部１６２をスリーブ１５６に向けて押し込む作業だけで、凹部１６３にスリーブ１５６を収容することができる。以上で、第１の軸受部１６２を操作部２２側に取り付ける取付作業が終了する。なお、図１６の状態では、凹部１６３の水密性がＯリング１５８によって確保される。また、第１の軸受部１６２がスリーブ１５６に向けて押し込まれる関係で、第２の軸受部１６４の内側面１６４Ａが操作部２２から離間した状態となっている。 FIG. 16 is a cross-sectional view of the operation portion 22 showing a state in which the sleeve 156 is accommodated in the concave portion 163 of the first bearing portion 162. That is, the sleeve 156 can be accommodated in the recess 163 only by pushing the first bearing portion 162 shown in FIG. 15 toward the sleeve 156. This completes the attachment work for attaching the first bearing portion 162 to the operation portion 22 side. In the state of FIG. 16, the water tightness of the recess 163 is ensured by the O-ring 158. Further, the inner surface 164 </ b> A of the second bearing portion 164 is separated from the operation portion 22 because the first bearing portion 162 is pushed toward the sleeve 156.
　図１７は、第２の軸受部１６４の内側面１６４Ａと操作部２２との間の隙間にスペーサ１６９を配置した状態を示した操作部２２の断面図である。 FIG. 17 is a cross-sectional view of the operation portion 22 showing a state in which the spacer 169 is disposed in the gap between the inner surface 164A of the second bearing portion 164 and the operation portion 22.
　図１７の如く、スペーサ１６９を配置した後、図１３に示したように、第２の軸受部１６４の貫通孔１６５に従動軸１６８を挿入する。この後、従動軸１６８を操作部２２のネジ穴２１に締結し、その後、貫通孔１６５をキャップ部材１６７によって閉塞する。以上で、第２の軸受部１６４を操作部２２側に取り付ける取付作業が終了し、可動部材９６を操作部２２に取り付ける取付作業が終了する。 17, after the spacer 169 is disposed, the driven shaft 168 is inserted into the through hole 165 of the second bearing portion 164 as shown in FIG. Thereafter, the driven shaft 168 is fastened to the screw hole 21 of the operation unit 22, and then the through hole 165 is closed by the cap member 167. Thus, the attaching operation for attaching the second bearing portion 164 to the operation portion 22 is completed, and the attaching operation for attaching the movable member 96 to the operation portion 22 is completed.
　先の説明と重複するが、操作部２２に取り付けられた可動部材９６は、第１の軸受部１６２においてはネジを挿入するための貫通孔が存在せず、また、第２の軸受部１６４においては従動軸１６８を挿入するための貫通孔１６５が存在するが、その貫通孔１６５はキャップ部材１６７によって封止されている。このため、可動部材９６の洗浄性が向上し、結果として内視鏡１０の洗浄性が向上されている。 Although overlapping with the previous description, the movable member 96 attached to the operation unit 22 does not have a through hole for inserting a screw in the first bearing unit 162, and the second bearing unit 164 Has a through hole 165 for inserting the driven shaft 168, and the through hole 165 is sealed by a cap member 167. For this reason, the cleaning property of the movable member 96 is improved, and as a result, the cleaning property of the endoscope 10 is improved.
　次に、上記の洗浄性が向上された内視鏡１０において、ワイヤ６０の基端を可動部材９６に取り付けるための取付構造に関し、以下に示す複数の実施形態を例示して説明する。 Next, a mounting structure for mounting the proximal end of the wire 60 to the movable member 96 in the endoscope 10 with improved cleaning performance will be described by exemplifying a plurality of embodiments shown below.
　図１８から図２２には、第１実施形態の取付構造１７０が示されている。 18 to 22 show the mounting structure 170 of the first embodiment.
　図１８は、操作部２２の他方の側面２２Ｂから取付構造１７０を見た斜視図である。また、図１９は、図１８に示した取付構造１７０を左側から見た斜視図である。また、図２０は、ワイヤ６０とワイヤ６０の基端に設けられた取付部材９８とを備えたワイヤ組立体１７２の斜視図である。図２１は、取付部材９８の正面図であり、図２２は、導入口９４と可動部材９６とを有する延設部３６の斜視図である。 FIG. 18 is a perspective view of the mounting structure 170 viewed from the other side surface 22B of the operation unit 22. FIG. 19 is a perspective view of the mounting structure 170 shown in FIG. 18 as viewed from the left side. FIG. 20 is a perspective view of a wire assembly 172 including a wire 60 and an attachment member 98 provided at the proximal end of the wire 60. FIG. 21 is a front view of the mounting member 98, and FIG. 22 is a perspective view of the extending portion 36 having the introduction port 94 and the movable member 96.
　図２２に示すように、可動部材９６には、取付部材９８（図２１参照）が着脱自在に係合される係合穴１７４が備えられる。係合穴１７４は、可動部材９６の梁部１６０の長手方向に沿って形成されており、梁部１６０の表裏面を貫通した貫通穴によって構成される。この係合穴１７４に取付部材９８の一対の係合部１７６、１７６（図２１参照）が着脱自在に係合される。 As shown in FIG. 22, the movable member 96 is provided with an engagement hole 174 into which the attachment member 98 (see FIG. 21) is detachably engaged. The engagement hole 174 is formed along the longitudinal direction of the beam portion 160 of the movable member 96, and is configured by a through hole that penetrates the front and back surfaces of the beam portion 160. A pair of engagement portions 176 and 176 (see FIG. 21) of the attachment member 98 are detachably engaged with the engagement holes 174.
　図２１に示す取付部材９８は、略三角形状の板状体であり、中央部の芯部１７８にワイヤ６０の基端が連結される穴部１８０が形成される。取付部材９８の一対の係合部１７６、１７６は、芯部１７８の両側にスリット状の切欠き１８２を介して設けられている。また、一対の係合部１７６、１７６には、係合穴１７４に弾性変形して係合する弾性変形部１８４がそれぞれ形成されている。また、弾性変形部１８４、１８４には、係合穴１７４の長手方向の両側の縁部１７５、１７５（図２２参照）に係止する爪部１８６がそれぞれ形成される。これら爪部１８６、１８６は、係合穴１７４と係合部１７６、１７６とを係合又は係合解除する際に、弾性変形部１８４、１８４の弾性変形により互いに近づく方向に変位される。 The attachment member 98 shown in FIG. 21 is a substantially triangular plate-like body, and a hole 180 where the proximal end of the wire 60 is connected to the core 178 at the center is formed. The pair of engaging portions 176 and 176 of the attachment member 98 are provided on both sides of the core portion 178 via slit-shaped notches 182. The pair of engaging portions 176 and 176 are formed with elastic deformation portions 184 that are elastically deformed and engaged with the engagement holes 174, respectively. The elastic deformation portions 184 and 184 are respectively formed with claw portions 186 that are engaged with the edge portions 175 and 175 (see FIG. 22) on both sides of the engagement hole 174 in the longitudinal direction. When the engagement holes 174 and the engagement portions 176 and 176 are engaged or disengaged, the claw portions 186 and 186 are displaced in a direction approaching each other due to elastic deformation of the elastic deformation portions 184 and 184.
　次に、第１実施形態の取付構造１７０によって、ワイヤ６０の基端を可動部材９６に取り付ける取付手順について説明する。 Next, an attachment procedure for attaching the proximal end of the wire 60 to the movable member 96 using the attachment structure 170 of the first embodiment will be described.
　まず、ワイヤ６０の基端を可動部材９６に取り付ける前に、ワイヤ６０の先端を起立台３０に連結する作業を行う。 First, before attaching the proximal end of the wire 60 to the movable member 96, the work of connecting the distal end of the wire 60 to the stand 30 is performed.
　図２３には、導入口９４からワイヤ６０を、係合部材１００（図２０参照）を先頭にして挿入している図が示されている。 FIG. 23 shows a diagram in which the wire 60 is inserted from the introduction port 94 with the engaging member 100 (see FIG. 20) at the head.
　すなわち、起立台３０を起立位置に位置させた状態（図３参照）で、図２３の如く、導入口９４からワイヤ６０を、係合部材１００を先頭に導入していくと、係合部材１００はワイヤチャンネル６２（図２参照）を介して導出口７４から外部に導出される。そして、係合部材１００は、継続するワイヤ６０の導入操作によって、図３の係合用誘導部１０６により起立台３０の収容溝１０２の開口１０４に向けて誘導されていき、開口１０４から収容溝１０２に係合される。この作業によって、ワイヤ６０の先端を起立台３０に連結することができる。 That is, when the wire 60 and the engaging member 100 are introduced from the introduction port 94 in the state where the stand 30 is positioned at the standing position (see FIG. 3), as shown in FIG. Is led out from the outlet 74 through the wire channel 62 (see FIG. 2). Then, the engaging member 100 is guided toward the opening 104 of the receiving groove 102 of the stand 30 by the engaging guiding portion 106 of FIG. Is engaged. By this work, the tip of the wire 60 can be connected to the upright 30.
　図２４は、ワイヤ６０の先端が起立台３０に連結された状態における取付部材９８の姿勢が示されている。この姿勢で、係合穴１７４の両側の縁部１７５、１７５（図２３参照）に、爪部１８６、１８６（図２１参照）の下部のテーパ部１８７、１８７を当接して取付部材９８を係合穴１７４に押し込む。この押し込み動作によって、爪部１８６、１８６の間の間隔が狭くなり、爪部１８６、１８６が係合穴１７４の両側の縁部１７５、１７５に係止する。これにより、図２５に示す連結図の如く、可動部材９６に取付部材９８が連結される。 FIG. 24 shows the posture of the attachment member 98 in a state where the tip of the wire 60 is connected to the upright 30. In this posture, the taper portions 187 and 187 of the lower portions of the claw portions 186 and 186 (see FIG. 21) are brought into contact with the edge portions 175 and 175 (see FIG. 23) on both sides of the engagement hole 174 to engage the attachment member 98. Push into the hole 174. By this pushing operation, the interval between the claw portions 186 and 186 is narrowed, and the claw portions 186 and 186 are locked to the edge portions 175 and 175 on both sides of the engagement hole 174. Thus, the attachment member 98 is connected to the movable member 96 as shown in the connection diagram of FIG.
　よって、第１実施形態の取付構造１７０によれば、可動部材９６の係合穴１７４に取付部材９８の爪部１８６、１８６を押し込む作業だけで、ワイヤ６０の基端を可動部材９６にワンタッチで取り付けることができる。 Therefore, according to the attachment structure 170 of the first embodiment, the base end of the wire 60 can be touched to the movable member 96 only by pushing the claws 186 and 186 of the attachment member 98 into the engagement holes 174 of the movable member 96. Can be attached.
　この後、図１の起立操作レバー２０を操作すると、図１９に示すように、可動部材９６が矢印Ｃ方向又は矢印Ｄ方向に動作する。そして、可動部材９６の動作に連動して、ワイヤ６０が取付部材９８を介して可動部材９６に押し引き操作される。これにより、起立台３０が起立位置と倒伏位置との間で回動される。 Thereafter, when the standing operation lever 20 in FIG. 1 is operated, the movable member 96 is moved in the arrow C direction or the arrow D direction as shown in FIG. Then, in conjunction with the operation of the movable member 96, the wire 60 is pushed and pulled by the movable member 96 via the attachment member 98. Thereby, the stand 30 is rotated between the standing position and the lying position.
　ところで、内視鏡１０は、各種の検査又は処置に使用される。その後において、内視鏡１０を洗浄する場合には、以下の作業を実施する。 Incidentally, the endoscope 10 is used for various examinations or treatments. Thereafter, when the endoscope 10 is cleaned, the following operation is performed.
　まず、図２に示したキャップ部材７６を先端部材２８から取り外す。次に、取付部材９８の係合部１７６、１７６を手指で摘まみ、爪部１８６、１８６の間の間隔を係合穴１７４の長手方向の寸法より小さくなるように狭めた後、係合穴１７４から爪部１８６、１８６を引き抜く。 First, the cap member 76 shown in FIG. Next, the engaging portions 176 and 176 of the mounting member 98 are picked with fingers, the interval between the claw portions 186 and 186 is narrowed to be smaller than the longitudinal dimension of the engaging hole 174, and then the engaging hole The claw portions 186 and 186 are pulled out from 174.
　よって、第１実施形態の取付構造１７０によれば、係合穴１７４から爪部１８６、１８６を引き抜く作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the mounting structure 170 of the first embodiment, the base end of the wire 60 can be detached from the movable member 96 only by pulling out the claw portions 186 and 186 from the engagement holes 174.
　次に、延設部３６の導入口９４からワイヤ６０を押し込み操作して、起立台３０を図３の起立位置から図２の倒伏位置に位置させる。この後、ワイヤ６０をさらに押し込み操作して、係合部材１００を、収容溝１０２から開口１０４の外方に離脱させる。この作業によって、ワイヤ６０の先端を起立台３０から取り外すことができる。次に、ワイヤ６０を導入口９４から引き出してワイヤチャンネル６２を空にする。その後、先端部材２８、起立台３０、及びワイヤチャンネル６２の洗浄を実施する。 Next, the wire 60 is pushed in from the introduction port 94 of the extending portion 36, so that the stand 30 is positioned from the standing position in FIG. 3 to the lying position in FIG. Thereafter, the wire 60 is further pushed in so that the engaging member 100 is detached from the housing groove 102 to the outside of the opening 104. With this operation, the tip of the wire 60 can be removed from the upright 30. Next, the wire 60 is pulled out from the introduction port 94 to empty the wire channel 62. Thereafter, the tip member 28, the upright stand 30, and the wire channel 62 are cleaned.
　以上の如く、第１実施形態の取付構造１７０によれば、操作部２２の外部において、可動部材９６の係合穴１７４に取付部材９８の爪部１８６、１８６を押し込む作業だけで、ワイヤ６０の基端を可動部材９６に取り付けることができる。また、操作部２２の外部において、可動部材９６の係合穴１７４から取付部材９８の係合部１７６、１７６を引き抜く作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 As described above, according to the attachment structure 170 of the first embodiment, the operation of the wire 60 can be performed only by pushing the claws 186 and 186 of the attachment member 98 into the engagement holes 174 of the movable member 96 outside the operation portion 22. The proximal end can be attached to the movable member 96. In addition, the base end of the wire 60 can be removed from the movable member 96 only by pulling the engagement portions 176 and 176 of the attachment member 98 from the engagement hole 174 of the movable member 96 outside the operation portion 22.
　したがって、第１実施形態の取付構造１７０によれば、従来の内視鏡と比較して、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the mounting structure 170 of the first embodiment, the detachment operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as compared with the conventional endoscope. Can do.
　また、実施形態の内視鏡１０は、図１３に示したように、操作部２２に対する可動部材９６の取付構造により内視鏡１０の洗浄性が向上されている。 Further, as shown in FIG. 13, the endoscope 10 of the embodiment has improved cleaning properties of the endoscope 10 due to the mounting structure of the movable member 96 to the operation unit 22.
　以上により、第１実施形態の取付構造１７０を有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the mounting structure 170 of the first embodiment, the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
　なお、第１実施形態の取付構造１７０では、可動部材９６に係合穴１７４を形成し、取付部材９８に係合部１７６を形成したが、可動部材９６に係合部１７６を形成し、取付部材９８に係合穴１７４を形成してもよい。すなわち、可動部材９６と取付部材９８とのいずれか一方には係合穴１７４が設けられ、他方には係合穴１７４に着脱自在に係合する係合部１７６が設けられていればよい。更に、爪部１８６は、可動部材９６の梁部１６０の長手方向側でなく、短手方向側に設けてもよい。更にまた、係合穴１７４は、梁部１６０の長手方向に互いに離間して形成された二つの係合穴であってもよい。また、係合穴１７４は、梁部１６０の表裏面を貫通していない凹状の非貫通穴でもよい。 In the attachment structure 170 of the first embodiment, the engagement hole 174 is formed in the movable member 96 and the engagement portion 176 is formed in the attachment member 98. However, the engagement portion 176 is formed in the movable member 96 and attached. An engagement hole 174 may be formed in the member 98. That is, an engagement hole 174 may be provided in one of the movable member 96 and the attachment member 98, and an engagement portion 176 that is detachably engaged with the engagement hole 174 may be provided on the other. Furthermore, the claw portion 186 may be provided not on the longitudinal direction side of the beam portion 160 of the movable member 96 but on the lateral direction side. Furthermore, the engagement holes 174 may be two engagement holes formed to be separated from each other in the longitudinal direction of the beam portion 160. The engagement hole 174 may be a concave non-through hole that does not penetrate the front and back surfaces of the beam portion 160.
　また、前述の例では、ワイヤチャンネル６２を空にするために、ワイヤ６０を導入口９４から引き出すとしたが、これに限定されない。たとえば、ワイヤチャンネル６２からのワイヤ６０の引き出しに先立って、ワイヤ６０の基端を取付部材９８から取り外せば、ワイヤ６０を導出口７４から引き出すことができる。 In the above example, the wire 60 is pulled out from the introduction port 94 in order to empty the wire channel 62. However, the present invention is not limited to this. For example, prior to pulling out the wire 60 from the wire channel 62, the wire 60 can be pulled out from the outlet 74 by removing the proximal end of the wire 60 from the attachment member 98.
　図２６は、図１８から図２５に示した取付構造１７０の変形例の取付構造１７０Ａを示した斜視図である。 FIG. 26 is a perspective view showing a mounting structure 170A, which is a modification of the mounting structure 170 shown in FIGS.
　図２６に示す取付構造１７０Ａを説明するに当たり、図１８から図２５に示した取付構造１７０と同一又は類似の部材については同一の符号を付して説明する。なお、これ以降に説明する他の実施形態の取付構造においても同様とする。 In the description of the mounting structure 170A shown in FIG. 26, the same or similar members as those of the mounting structure 170 shown in FIGS. The same applies to the mounting structures of other embodiments described below.
　可動部材９６に形成された係合穴１７４Ａは、円形の貫通穴である。また、取付部材９８Ａの係合部１７６Ａは、係合穴１７４Ａに挿入される筒状部１７７を有している。また、取付部材９８Ａの弾性変形部は、筒状部１７７の先端部に設けられたすり割り部１８４Ａによって構成され、すり割り部１８４Ａの外周面には爪部１８６Ａが形成されている。 The engagement hole 174A formed in the movable member 96 is a circular through hole. Further, the engaging portion 176A of the mounting member 98A has a cylindrical portion 177 inserted into the engaging hole 174A. The elastically deforming portion of the attachment member 98A is configured by a slit portion 184A provided at the tip of the cylindrical portion 177, and a claw portion 186A is formed on the outer peripheral surface of the slit portion 184A.
　このように構成された取付構造１７０Ａによれば、筒状部１７７のすり割り部１８４Ａを係合穴１７４Ａに挿入すると、すり割り部１８４Ａが弾性変形により縮径する。これにより、すり割り部１８４Ａが係合穴１７４Ａを通過していき、すり割り部１８４Ａが係合穴１７４Ａを通過したときに、すり割り部１８４Ａが元の直径に復帰する。これによって、図２７に示す取付構造１７０Ａの断面図の如く、すり割り部１８４Ａの爪部１８６Ａが、可動部材９６の梁部１６０の裏面１６０Ａに係合するので、可動部材９６に取付部材９８Ａが連結される。 According to the mounting structure 170A configured as described above, when the slit portion 184A of the cylindrical portion 177 is inserted into the engagement hole 174A, the slit portion 184A is reduced in diameter by elastic deformation. Thereby, when the slit part 184A passes through the engagement hole 174A and the slit part 184A passes through the engagement hole 174A, the slit part 184A returns to the original diameter. Accordingly, as shown in the sectional view of the mounting structure 170A shown in FIG. 27, the claw portion 186A of the slit portion 184A engages with the back surface 160A of the beam portion 160 of the movable member 96, so that the mounting member 98A is attached to the movable member 96. Connected.
　よって、取付構造１７０Ａによれば、係合穴１７４Ａに係合部１７６Ａを挿入する作業だけで、ワイヤ６０の基端を可動部材９６に取り付けることができる。また、すり割り部１８４Ａを指で摘まんで、すり割り部１８４Ａを縮径させた後、すり割り部１８４Ａを係合穴１７４Ａから引き抜く作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the attachment structure 170A, the base end of the wire 60 can be attached to the movable member 96 only by inserting the engagement portion 176A into the engagement hole 174A. In addition, the base end of the wire 60 is removed from the movable member 96 only by pulling the slit portion 184A from the engagement hole 174A after pinching the slit portion 184A with a finger to reduce the diameter of the slit portion 184A. Can do.
　したがって、取付構造１７０Ａによれば、第１実施形態の取付構造１７０と同様に、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the mounting structure 170A, the base end of the wire 60 can be easily attached to and detached from the standing operation mechanism 120 (see FIGS. 9 and 10), similarly to the mounting structure 170 of the first embodiment.
　以上により、取付構造１７０Ａを有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the mounting structure 170A, it is possible to improve the cleanability of the endoscope 10 while easily performing the attaching / detaching operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120. it can.
　次に、図２８から図３０を参照して、第２実施形態の取付構造２１０について説明する。 Next, the mounting structure 210 of the second embodiment will be described with reference to FIGS.
　図２８は、取付構造２１０の斜視図であり、図２９は、取付構造２１０の組立斜視図であり、図３０は、取付構造２１０の要部断面図である。 28 is a perspective view of the mounting structure 210, FIG. 29 is an assembled perspective view of the mounting structure 210, and FIG. 30 is a cross-sectional view of the main part of the mounting structure 210.
　取付構造２１０は、可動部材９６と取付部材２１２とから構成される。 The mounting structure 210 includes a movable member 96 and a mounting member 212.
　図２９の如く、可動部材９６の梁部１６０には、係合穴２１４が設けられ、取付部材２１２には、係合穴２１４に着脱自在に係合する係合部２１６が設けられる。また、取付部材２１２は、摘まみ部２１８と、係合部２１６を構成する軸部２２０とから構成され、軸部２２０に形成された穴部２２２にワイヤ６０の基端が連結されている。 29, the beam portion 160 of the movable member 96 is provided with an engagement hole 214, and the attachment member 212 is provided with an engagement portion 216 that is detachably engaged with the engagement hole 214. The attachment member 212 includes a knob portion 218 and a shaft portion 220 that constitutes the engaging portion 216, and a proximal end of the wire 60 is coupled to a hole portion 222 formed in the shaft portion 220.
　ここで、係合穴２１４の形状について説明する。図３１は、係合穴２１４の平面図であり、係合穴２１４の形状に係合部２１６の拡径部２２８（図２９参照）の形状を重畳して示している。 Here, the shape of the engagement hole 214 will be described. FIG. 31 is a plan view of the engagement hole 214, in which the shape of the enlarged diameter portion 228 (see FIG. 29) of the engagement portion 216 is superimposed on the shape of the engagement hole 214.
　係合穴２１４は、直径ａを有する幅狭部２２４と、直径ａよりも大きい直径ｂを有する幅広部２２６とを有する。実施形態では、本発明の第１幅を直径ａで説明し、本発明の第２幅を直径ｂで示している。なお、図３１に示すように、幅狭部２２４の中心と幅広部２２６の中心とを結ぶ線ＣＬは、導入口９４（不図示）を中心とする円弧に沿った曲線である。幅狭部２２４と幅広部２２６との配置は、取付部材２１２を係合穴２１４に係合する際の操作を容易にしている。これについては後述する。 The engagement hole 214 has a narrow part 224 having a diameter a and a wide part 226 having a diameter b larger than the diameter a. In the embodiment, the first width of the present invention is described by a diameter a, and the second width of the present invention is indicated by a diameter b. As shown in FIG. 31, a line CL connecting the center of the narrow portion 224 and the center of the wide portion 226 is a curve along an arc centered on the introduction port 94 (not shown). The arrangement of the narrow portion 224 and the wide portion 226 facilitates an operation when the attachment member 212 is engaged with the engagement hole 214. This will be described later.
　図２９に示した取付部材２１２の係合部２１６は、図３１の直径ａ以下の外径ｃを有する軸部２２０と、軸部２２０の先端に設けられた拡径部２２８とを有する。直径ａと外径ｃとの差を小さくすることにより、軸部２２０を幅狭部２２４に安定して保持させることができる。拡径部２２８は、直径ａよりも大きく且つ直径ｂより小さい外径ｄを有している。この拡径部２２８は、幅狭部２２４から軸部２２０が、軸部２２０の軸方向に離脱することを規制する抜け止め部材として機能する。 29 has a shaft part 220 having an outer diameter c equal to or smaller than the diameter a in FIG. 31 and a diameter-enlarged part 228 provided at the tip of the shaft part 220. The engagement part 216 of the mounting member 212 shown in FIG. By reducing the difference between the diameter a and the outer diameter c, the shaft portion 220 can be stably held by the narrow portion 224. The enlarged diameter portion 228 has an outer diameter d that is larger than the diameter a and smaller than the diameter b. The enlarged diameter portion 228 functions as a retaining member that restricts the shaft portion 220 from separating from the narrow portion 224 in the axial direction of the shaft portion 220.
　係合穴２１４は、幅狭部２２４と幅広部２２６との間に摩擦抵抗部２３０を有する。この摩擦抵抗部２３０は、幅狭部２２４の開口入口部に設けられ、且つ係合穴２１４の互いに対向する壁面から突出するよう形成されている。摩擦抵抗部２３０は、幅狭部２２４に挿入された軸部２２０が、幅狭部２２４から幅広部２２６に不用意にスライドすることを規制する規制部材として機能する。 The engagement hole 214 has a frictional resistance portion 230 between the narrow portion 224 and the wide portion 226. The frictional resistance portion 230 is provided at the opening entrance portion of the narrow portion 224 and is formed so as to protrude from the opposing wall surfaces of the engagement hole 214. The frictional resistance part 230 functions as a restricting member that restricts the shaft part 220 inserted into the narrow part 224 from inadvertently sliding from the narrow part 224 to the wide part 226.
　このように構成された取付構造２１０によれば、まず、係合部２１６を幅広部２２６に挿入する。次いで、取付部材２１２を幅広部２２６から幅狭部２２４に向けてスライド移動する。その際、図２８に示すように、取付部材２１２はワイヤ６０に固定されているので、取付部材２１２は導入口９４を中心とする曲線ＣＬに沿って移動する。上述したように幅狭部２２４と幅広部２２６のそれぞれの中心は曲線ＣＬ上にあるので、取付部材２１２は幅広部２２６から幅狭部２２４に向けて円滑にスライドする。また、幅広部２２６から幅狭部２２４に向けて係合部２１６をスライドさせると、軸部２２０が摩擦抵抗部２３０に当接するが、係合部２１６をスライドさせる力によって係合部２１６を幅狭部２２４に問題なく係合させることができる。これにより、可動部材９６に取付部材２１２が連結される。 According to the mounting structure 210 configured as described above, first, the engaging portion 216 is inserted into the wide portion 226. Next, the attachment member 212 slides from the wide part 226 toward the narrow part 224. At this time, as shown in FIG. 28, since the attachment member 212 is fixed to the wire 60, the attachment member 212 moves along a curve CL centering on the introduction port 94. As described above, since the centers of the narrow portion 224 and the wide portion 226 are on the curve CL, the attachment member 212 slides smoothly from the wide portion 226 toward the narrow portion 224. Further, when the engaging portion 216 is slid from the wide portion 226 toward the narrow portion 224, the shaft portion 220 comes into contact with the frictional resistance portion 230, but the engaging portion 216 is made to have a width by the force of sliding the engaging portion 216. The narrow portion 224 can be engaged without any problem. As a result, the attachment member 212 is coupled to the movable member 96.
　よって、第２実施形態の取付構造２１０によれば、係合部２１６を幅狭部２２４に係合させる作業だけで、ワイヤ６０の基端を可動部材９６に取り付けることができる。 Therefore, according to the attachment structure 210 of the second embodiment, the base end of the wire 60 can be attached to the movable member 96 only by engaging the engaging portion 216 with the narrow portion 224.
　また、係合部２１６を幅狭部２２４に係合させた状態において、幅狭部２２４から軸部２２０が、軸部２２０の軸方向に離脱することを拡径部２２８によって防止することができる。また、軸部２２０が摩擦抵抗部２３０に当接することで、係合部２１６が幅狭部２２４から幅広部２２６に向けてスライドすることを規制することができる。これにより、取付部材２１２を可動部材９６に確実に連結することができる。 Further, in a state in which the engaging portion 216 is engaged with the narrow portion 224, the diameter expanding portion 228 can prevent the shaft portion 220 from being detached from the narrow portion 224 in the axial direction of the shaft portion 220. . Further, the shaft portion 220 abuts against the frictional resistance portion 230, so that the engagement portion 216 can be prevented from sliding from the narrow portion 224 toward the wide portion 226. Thereby, the attachment member 212 can be reliably connected to the movable member 96.
　一方、内視鏡１０の洗浄時に、ワイヤ６０の基端を可動部材９６から取り外す場合には、係合部２１６を幅狭部２２４から幅広部２２６にスライドさせて、幅広部２２６から係合部２１６を引き抜く。 On the other hand, when the proximal end of the wire 60 is removed from the movable member 96 at the time of cleaning the endoscope 10, the engaging portion 216 is slid from the narrow portion 224 to the wide portion 226, and from the wide portion 226 to the engaging portion. Pull out 216.
　よって、第２実施形態の取付構造２１０によれば、係合部２１６を幅広部２２６から引き抜く作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the attachment structure 210 of the second embodiment, the base end of the wire 60 can be detached from the movable member 96 only by pulling out the engaging portion 216 from the wide portion 226.
　したがって、第２実施形態の取付構造２１０によれば、第１実施形態の取付構造１７０と同様に、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the attachment structure 210 of the second embodiment, similarly to the attachment structure 170 of the first embodiment, it is easy to attach and detach the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10). It can be carried out.
　以上により、第２実施形態の取付構造２１０を有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the mounting structure 210 of the second embodiment, the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
　なお、図３１では、摩擦抵抗部２３０を備えた係合穴２１４を例示したが、摩擦抵抗部２３０を備えていない係合穴２１４であってもよい。 In addition, in FIG. 31, although the engagement hole 214 provided with the friction resistance part 230 was illustrated, the engagement hole 214 which is not provided with the friction resistance part 230 may be sufficient.
　次に、図３２及び図３３を参照して、第３実施形態の取付構造２３２について説明する。 Next, the mounting structure 232 of the third embodiment will be described with reference to FIG. 32 and FIG.
　図３２は、取付構造２３２の組立斜視図である。図３３は、可動部材９６に形成された係合穴２１４の平面図であり、係合穴２１４の形状に、取付部材２３４の係合部２３６の拡径部２３８の形状を重畳させて示している。なお、取付構造２３２を説明するに当たり、図２８から図３１に示した取付構造２１０と同一又は類似の部材については同一の符号を付して説明する。 FIG. 32 is an assembly perspective view of the mounting structure 232. FIG. 33 is a plan view of the engagement hole 214 formed in the movable member 96, and shows the shape of the enlarged diameter portion 238 of the engagement portion 236 of the attachment member 234 superimposed on the shape of the engagement hole 214. Yes. In the description of the mounting structure 232, members that are the same as or similar to the mounting structure 210 shown in FIGS.
　図３３に示すように、係合穴２１４は、直径ａを有する幅狭部２２４と、直径ａよりも大きい直径ｂを有する幅広部２２６とを有する。幅狭部２２４と幅広部２２６とは、図３１と同様に位置関係にある。 33, the engagement hole 214 has a narrow part 224 having a diameter a and a wide part 226 having a diameter b larger than the diameter a. The narrow portion 224 and the wide portion 226 are in a positional relationship as in FIG.
　また、図３２に示した取付部材２３４の係合部２３６は、直径ａ以下の外径ｃを有する軸部２２０と、軸部２２０の先端に設けられ、直径ｂよりも外径ｆが大きく且つ複数（例えば４本）のすり割り溝２３７（図３２参照）が形成された拡径部２３８とを有している。拡径部２３８は、拡径部２３８が幅広部２２６に挿入される際に、複数のすり割り溝２３７によって弾性変形して縮径する。 Further, the engaging portion 236 of the attachment member 234 shown in FIG. 32 is provided at the shaft portion 220 having an outer diameter c equal to or smaller than the diameter a and the tip of the shaft portion 220, and has an outer diameter f larger than the diameter b. And a large-diameter portion 238 in which a plurality of (for example, four) slits 237 (see FIG. 32) are formed. The enlarged diameter portion 238 is elastically deformed by the plurality of slits 237 and reduced in diameter when the enlarged diameter portion 238 is inserted into the wide portion 226.
　このように構成された取付構造２３２によれば、係合穴２１４の幅広部２２６に拡径部２３８を嵌装すると、拡径部２３８が複数のすり割り溝２３７によって弾性変形して縮径する。これにより、拡径部２３８が幅広部２２６を通過していき、拡径部２３８が幅広部２２６を通過したときに、拡径部２３８が元の直径に復帰する。これによって、拡径部２３８が、可動部材９６の梁部１６０の裏面１６０Ａに係合するので、可動部材９６からの取付部材２３４の抜けが防止される。 According to the mounting structure 232 configured as described above, when the enlarged diameter portion 238 is fitted into the wide portion 226 of the engagement hole 214, the enlarged diameter portion 238 is elastically deformed by the plurality of slot grooves 237 and reduced in diameter. . Thereby, the enlarged diameter part 238 passes through the wide part 226, and when the enlarged diameter part 238 passes through the wide part 226, the enlarged diameter part 238 returns to the original diameter. As a result, the enlarged diameter portion 238 is engaged with the back surface 160A of the beam portion 160 of the movable member 96, so that the attachment member 234 is prevented from coming off from the movable member 96.
　その後、係合部２３６を幅狭部２２４に向けてスライドさせて、係合部２３６を幅狭部２２４に係合させる。これにより、可動部材９６に取付部材２３４が連結される。 Thereafter, the engaging portion 236 is slid toward the narrow portion 224, and the engaging portion 236 is engaged with the narrow portion 224. As a result, the attachment member 234 is coupled to the movable member 96.
　よって、第３実施形態の取付構造２３２によれば、係合部２３６を幅狭部２２４に係合させる作業だけで、ワイヤ６０の基端を可動部材９６に取り付けることができる。 Therefore, according to the attachment structure 232 of the third embodiment, the base end of the wire 60 can be attached to the movable member 96 only by engaging the engaging portion 236 with the narrow portion 224.
　また、係合部２３６を幅狭部２２４に係合させた状態において、幅狭部２２４から軸部２２０が、軸部２２０の軸方向に離脱することを拡径部２３８によって防止することができる。また、軸部２２０が摩擦抵抗部２３０に当接することで、係合部２３６が幅狭部２２４から幅広部２２６に向けてスライドすることを規制することができる。これにより、取付部材２３４を可動部材９６に確実に連結することができる。 Further, in a state in which the engaging portion 236 is engaged with the narrow portion 224, the diameter expanding portion 238 can prevent the shaft portion 220 from being detached from the narrow portion 224 in the axial direction of the shaft portion 220. . Further, the shaft portion 220 abuts against the frictional resistance portion 230, so that the engagement portion 236 can be prevented from sliding from the narrow portion 224 toward the wide portion 226. Thereby, the attachment member 234 can be reliably connected to the movable member 96.
　一方、内視鏡１０の洗浄時に、ワイヤ６０の基端を可動部材９６から取り外す場合には、取付部材２３４の係合部２３６を幅狭部２２４から幅広部２２６にスライドさせ、その後、拡径部２３８を指で摘まみ、拡径部２３８を縮径させて、拡径部２３８を幅広部２２６から引き抜く。 On the other hand, when removing the proximal end of the wire 60 from the movable member 96 during cleaning of the endoscope 10, the engaging portion 236 of the attachment member 234 is slid from the narrow portion 224 to the wide portion 226, and then the diameter is increased. The part 238 is picked with a finger, the diameter-enlarged part 238 is reduced in diameter, and the diameter-enlarged part 238 is pulled out from the wide part 226.
　よって、第３実施形態の取付構造２３２によれば、拡径部２３８を幅広部２２６から引き抜く作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the mounting structure 232 of the third embodiment, the base end of the wire 60 can be removed from the movable member 96 only by pulling out the enlarged diameter portion 238 from the wide portion 226.
　したがって、第３実施形態の取付構造２３２によれば、第１実施形態の取付構造１７０と同様に、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the attachment structure 232 of the third embodiment, similarly to the attachment structure 170 of the first embodiment, the operation of attaching and detaching the proximal end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed. It can be carried out.
　以上により、第３実施形態の取付構造２３２を有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the attachment structure 232 of the third embodiment, the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
　なお、図３３では、摩擦抵抗部２３０を備えた係合穴２１４を例示したが、摩擦抵抗部２３０を備えていない係合穴２１４であってもよい。 In addition, in FIG. 33, although the engagement hole 214 provided with the friction resistance part 230 was illustrated, the engagement hole 214 which is not provided with the friction resistance part 230 may be used.
　次に、図３４及び図３５を参照して、第４実施形態の取付構造２４０について説明する。 Next, with reference to FIG.34 and FIG.35, the attachment structure 240 of 4th Embodiment is demonstrated.
　図３４は、取付構造２４０の斜視図であり、図３５は、取付構造２１０の組立斜視図である。 34 is a perspective view of the mounting structure 240, and FIG. 35 is an assembly perspective view of the mounting structure 210.
　取付構造２４０は、可動部材２４２と取付部材２４４とから構成される。 The mounting structure 240 includes a movable member 242 and a mounting member 244.
　可動部材２４２は、第１の軸受部１６２と、第２の軸受部１６４と、第１の軸受部１６２と第２の軸受部１６４とを連結する円筒体２４６と、から構成される。この円筒体２４６は、ワイヤ６０の軸線方向に垂直な方向（Ｘ（＋）－Ｘ（－）方向）に延在されている。また、図３４及び図３５において、第１の軸受部１６２と第２の軸受部１６４の上端部には、回転規制ストッパを構成するＵ字状の溝２４８、２５０が形成されている。なお、この可動部材２４２においても、図１３に示した可動部材９６と同様な取付構造にて操作部２２に取り付けられている。 The movable member 242 includes a first bearing portion 162, a second bearing portion 164, and a cylindrical body 246 that connects the first bearing portion 162 and the second bearing portion 164. The cylindrical body 246 extends in a direction (X (+)-X (−) direction) perpendicular to the axial direction of the wire 60. In FIGS. 34 and 35, U-shaped grooves 248 and 250 constituting rotation restriction stoppers are formed at the upper end portions of the first bearing portion 162 and the second bearing portion 164, respectively. The movable member 242 is also attached to the operation unit 22 with the same attachment structure as the movable member 96 shown in FIG.
　一方、取付部材２４４には、ワイヤ６０の基端が連結されている。取付部材２４４は、円筒体２４６の外周に回転自在に係合する環状体２５２と、溝２４８、２５０とともに回転規制ストッパを構成するピン２５４、２５６と、から構成される。環状体２５２は、長手方向に直交する断面がＣ字形状に構成されており、長手方向に形成されているスリット２５３を円筒体２４６に押し付けることにより、拡径して円筒体２４６に係合する。 On the other hand, the base end of the wire 60 is connected to the mounting member 244. The attachment member 244 includes an annular body 252 that is rotatably engaged with the outer periphery of the cylindrical body 246, and pins 254 and 256 that together with the grooves 248 and 250 constitute a rotation restricting stopper. The annular body 252 has a C-shaped cross section perpendicular to the longitudinal direction, and the slit 253 formed in the longitudinal direction is pressed against the cylindrical body 246 to expand the diameter and engage with the cylindrical body 246. .
　このように構成された取付構造２４０によれば、取付部材２４４の環状体２５２のスリット２５３を、可動部材２４２の円筒体２４６に押し付けて、環状体２５２を円筒体２４６に係合させる。 According to the mounting structure 240 configured as described above, the slit 253 of the annular body 252 of the mounting member 244 is pressed against the cylindrical body 246 of the movable member 242, and the annular body 252 is engaged with the cylindrical body 246.
　よって、第４実施形態の取付構造２４０によれば、環状体２５２を円筒体２４６に係合させる作業だけで、ワイヤ６０の基端を可動部材２４２に取り付けることができる。 Therefore, according to the attachment structure 240 of the fourth embodiment, the base end of the wire 60 can be attached to the movable member 242 only by engaging the annular body 252 with the cylindrical body 246.
　また、環状体２５２が円筒体２４６に係合すると、これと同時に溝２４８にピン２５４が係合され、且つ溝２５０にピン２５６が係合されるので、可動部材２４２によるワイヤ６０の押し引き操作時に、円筒体２４６に対して環状体２５２が相対回転することを防止することができる。これにより、ワイヤ６０を円滑に押し引き操作することができる。 Further, when the annular body 252 is engaged with the cylindrical body 246, the pin 254 is engaged with the groove 248 and the pin 256 is engaged with the groove 250 at the same time, so that the movable member 242 pushes and pulls the wire 60. Sometimes, the relative rotation of the annular body 252 with respect to the cylindrical body 246 can be prevented. Thereby, the wire 60 can be smoothly pushed and pulled.
　一方、内視鏡１０の洗浄時に、ワイヤ６０の基端を可動部材２４２から取り外す場合には、溝２４８、２５０からピン２５４、２５６を取り外す方向に取付部材２４４を引っ張ると、環状体２５２が円筒体２４６に押されて拡径し、環状体２５２が円筒体２４６から離脱する。 On the other hand, when the proximal end of the wire 60 is removed from the movable member 242 when the endoscope 10 is cleaned, the annular body 252 is cylindrical when the attachment member 244 is pulled in the direction of removing the pins 254 and 256 from the grooves 248 and 250. The diameter is increased by being pushed by the body 246, and the annular body 252 is detached from the cylindrical body 246.
　よって、第４実施形態の取付構造２４０によれば、取付部材２４４を引っ張る作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the attachment structure 240 of the fourth embodiment, the base end of the wire 60 can be detached from the movable member 96 only by pulling the attachment member 244.
　したがって、第４実施形態の取付構造２４０によれば、第１実施形態の取付構造１７０と同様に、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the attachment structure 240 of the fourth embodiment, the attachment / detachment operation of the proximal end of the wire 60 with respect to the upright operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as with the attachment structure 170 of the first embodiment. It can be carried out.
　以上により、第４実施形態の取付構造２４０を有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the attachment structure 240 of the fourth embodiment, the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
　なお、上記の実施形態では、可動部材２４２に円筒体２４６を設け、取付部材２４４に環状体２５２を設けたが、可動部材２４２と取付部材２４４とのいずれか一方に円筒体２４６を設け、他方に環状体２５２を設ければよい。 In the above embodiment, the movable member 242 is provided with the cylindrical body 246, and the mounting member 244 is provided with the annular body 252. However, the movable member 242 and the mounting member 244 are provided with the cylindrical body 246, and the other An annular body 252 may be provided on the surface.
　次に、図３６から図３８を参照して、第５実施形態の取付構造２７０について説明する。 Next, an attachment structure 270 of the fifth embodiment will be described with reference to FIGS.
　図３６は、取付構造２７０の斜視図、図３７及び図３８は、取付構造２７０の組立斜視図である。 36 is a perspective view of the mounting structure 270, and FIGS. 37 and 38 are assembly perspective views of the mounting structure 270. FIG.
　図３７に示すように、取付構造２７０は、可動部材９６と取付部材２７２とから構成される。 As shown in FIG. 37, the attachment structure 270 includes a movable member 96 and an attachment member 272.
　取付部材２７２には、ワイヤ６０の軸線方向に垂直な方向に延在する軸部２７４と、軸部２７４の長手軸ｇに垂直な方向ｈに延在する連結部２７６と、連結部２７６の軸部２７４と反対側に設けられた係止部２７８と、が設けられている。 The attachment member 272 includes a shaft portion 274 extending in a direction perpendicular to the axial direction of the wire 60, a connecting portion 276 extending in a direction h perpendicular to the longitudinal axis g of the shaft portion 274, and a shaft of the connecting portion 276. A locking portion 278 provided on the opposite side to the portion 274 is provided.
　可動部材９６の梁部１６０には、軸部２７４が挿入される装着穴２８０と、係止部２７８が係止される係止溝部２８２とが設けられている。装着穴２８０は、ワイヤ６０の軸線方向に沿って形成されており、その軸線方向に沿った装着穴２８０の長さｊは、軸部２７４の直径ｋと連結部２７６の長さｍとを足した長さよりも長く設定されている。 The beam portion 160 of the movable member 96 is provided with a mounting hole 280 into which the shaft portion 274 is inserted, and a locking groove portion 282 in which the locking portion 278 is locked. The mounting hole 280 is formed along the axial direction of the wire 60, and the length j of the mounting hole 280 along the axial direction is obtained by adding the diameter k of the shaft portion 274 and the length m of the connecting portion 276. It is set longer than the length.
　係止部２７８は、装着穴２８０の奥深くに軸部２７４が挿入された図３８の状態で軸部２７４の長手軸ｇを中心に軸部２７４を回転させたときに、図３６の如く係止溝部２８２に係止される。また、図３７の如く、梁部１６０には、装着穴２８０に貫通した切欠部２８４が形成される。図３６の如く、係止部２７８が係止溝部２８２に係止されたとき、連結部２７６は、切欠部２８４を介して装着穴２８０に収容される。 The locking portion 278 is locked as shown in FIG. 36 when the shaft portion 274 is rotated around the longitudinal axis g of the shaft portion 274 in the state of FIG. 38 in which the shaft portion 274 is inserted deeply into the mounting hole 280. The groove 282 is locked. Further, as shown in FIG. 37, the beam portion 160 is formed with a notch 284 penetrating the mounting hole 280. As shown in FIG. 36, when the locking portion 278 is locked in the locking groove portion 282, the connecting portion 276 is received in the mounting hole 280 via the notch portion 284.
　また、図３７の如く、連結部２７６には、連結部２７６の延在方向である方向ｈに沿ったワイヤ溝部２８６が設けられている。ワイヤ溝部２８６は、係止部２７８を係止溝部２８２に係止させたときにワイヤ６０を収容する。 As shown in FIG. 37, the connecting portion 276 is provided with a wire groove portion 286 along the direction h which is the extending direction of the connecting portion 276. The wire groove portion 286 accommodates the wire 60 when the locking portion 278 is locked to the locking groove portion 282.
　このように構成された取付構造２７０によれば、軸部２７４を装着穴２８０に挿入し、軸部２７４の長手軸ｇを中心に軸部２７４を回転させて、係止部２７８を係止溝部２８２に係止する。 According to the mounting structure 270 configured as described above, the shaft portion 274 is inserted into the mounting hole 280, the shaft portion 274 is rotated around the longitudinal axis g of the shaft portion 274, and the locking portion 278 is locked to the locking groove portion. Lock to 282.
　よって、第５実施形態の取付構造２７０によれば、装着穴２８０に軸部２７４を挿入して軸部２７４を回転させる作業だけで、ワイヤ６０の基端を可動部材９６に取り付けることができる。 Therefore, according to the attachment structure 270 of the fifth embodiment, the proximal end of the wire 60 can be attached to the movable member 96 only by inserting the shaft portion 274 into the mounting hole 280 and rotating the shaft portion 274.
　一方、内視鏡１０の洗浄時に、ワイヤ６０の基端を可動部材９６から取り外す場合には、係止部２７８を指で摘まんで係止溝部２８２から取り外し、軸部２７４を装着穴２８０から引き抜く。 On the other hand, when the proximal end of the wire 60 is removed from the movable member 96 when the endoscope 10 is cleaned, the locking portion 278 is picked up with a finger and removed from the locking groove portion 282, and the shaft portion 274 is pulled out from the mounting hole 280. .
　よって、第５実施形態の取付構造２７０によれば、係止部２７８を係止溝部２８２から取り外し、軸部２７４を装着穴２８０から引き抜く作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the attachment structure 270 of the fifth embodiment, the base end of the wire 60 is removed from the movable member 96 simply by removing the locking portion 278 from the locking groove portion 282 and pulling out the shaft portion 274 from the mounting hole 280. be able to.
　したがって、第５実施形態の取付構造２７０によれば、第１実施形態の取付構造１７０と同様に、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the attachment structure 270 of the fifth embodiment, similarly to the attachment structure 170 of the first embodiment, the attachment / detachment operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed. It can be carried out.
　以上により、第５実施形態の取付構造２７０を有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the attachment structure 270 of the fifth embodiment, the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
　次に、図３９及び図４０を参照して、第６実施形態の取付構造２９０について説明する。 Next, the attachment structure 290 of the sixth embodiment will be described with reference to FIG. 39 and FIG.
　図３９は、取付構造２９０の斜視図、図４０は、取付構造２９０の組立斜視図である。 39 is a perspective view of the mounting structure 290, and FIG. 40 is an assembled perspective view of the mounting structure 290. FIG.
　図４０に示すように、取付構造２９０は、可動部材９６と取付部材２９２とから構成される。 40, the attachment structure 290 includes a movable member 96 and an attachment member 292.
　取付部材２９２には、一対の爪部２９４Ａ、２９４Ｂと、一対の爪部２９４Ａ、２９４Ｂを互いに近づける方向に付勢するバネ２９６と、バネ２９６の付勢力に抗して一対の爪部２９４Ａ、２９４Ｂを互いに遠ざかる方向に移動させるための一対の摘まみ部２９８Ａ、２９８Ｂとが設けられている。なお、バネ２９６が、本発明の付勢部材に相当する。 The attachment member 292 includes a pair of claw portions 294A and 294B, a spring 296 that urges the pair of claw portions 294A and 294B toward each other, and a pair of claw portions 294A and 294B against the urging force of the spring 296. A pair of knobs 298A and 298B are provided for moving the two in a direction away from each other. The spring 296 corresponds to the biasing member of the present invention.
　爪部２９４Ａと摘まみ部２９８Ａは一体に構成され、同様に爪部２９４Ｂと摘まみ部２９８Ｂは一体に構成され、軸３００を介して互いに軸支されている。この軸３００にワイヤ６０の基端が固定されている。 The claw portion 294A and the knob portion 298A are integrally formed. Similarly, the claw portion 294B and the knob portion 298B are integrally formed and are pivotally supported by the shaft 300. The proximal end of the wire 60 is fixed to the shaft 300.
　可動部材９６の梁部１６０には、バネ２９６の付勢力により一対の爪部２９４Ａ、２９４Ｂが装着される一対の装着穴３０２Ａ、３０２Ｂが設けられている。 The beam 160 of the movable member 96 is provided with a pair of mounting holes 302A and 302B in which the pair of claws 294A and 294B are mounted by the biasing force of the spring 296.
　このように構成された取付構造２９０によれば、一対の摘まみ部２９８Ａ、２９８Ｂを摘まんで一対の爪部２９４Ａ、２９４Ｂの間隔を広げ、一対の爪部２９４Ａ、２９４Ｂを一対の装着穴３０２Ａ、３０２Ｂに挿入し、一対の爪部２９４Ａ、２９４Ｂから指を離す。これにより、一対の摘まみ部２９８Ａ、２９８Ｂが一対の装着穴３０２Ａ、３０２Ｂにバネ２９６の付勢力により係止する。 According to the mounting structure 290 thus configured, the pair of claw portions 298A, 298B is pinched to widen the distance between the pair of claw portions 294A, 294B, and the pair of claw portions 294A, 294B are paired with the pair of mounting holes 302A, Insert into 302B and release the fingers from the pair of claws 294A, 294B. Accordingly, the pair of knobs 298A and 298B are locked to the pair of mounting holes 302A and 302B by the biasing force of the spring 296.
　よって、第６実施形態の取付構造２９０によれば、一対の摘まみ部２９８Ａ、２９８Ｂを一対の装着穴３０２Ａ、３０２Ｂに係止させる作業だけで、ワイヤ６０の基端を可動部材９６に取り付けることができる。 Therefore, according to the attachment structure 290 of the sixth embodiment, the base end of the wire 60 is attached to the movable member 96 only by engaging the pair of knobs 298A, 298B with the pair of mounting holes 302A, 302B. Can do.
　一方、内視鏡１０の洗浄時に、ワイヤ６０の基端を可動部材９６から取り外す場合には、一対の摘まみ部２９８Ａ、２９８Ｂを摘まんで一対の爪部２９４Ａ、２９４Ｂの間隔を広げ、一対の爪部２９４Ａ、２９４Ｂを一対の装着穴３０２Ａ、３０２Ｂから取り外す。 On the other hand, when removing the proximal end of the wire 60 from the movable member 96 during cleaning of the endoscope 10, the pair of claw portions 298A and 298B are pinched to widen the distance between the pair of claw portions 294A and 294B. The claw portions 294A and 294B are removed from the pair of mounting holes 302A and 302B.
　よって、第６実施形態の取付構造２９０によれば、一対の摘まみ部２９８Ａ、２９８Ｂを一対の装着穴３０２Ａ、３０２Ｂから取り外す作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the attachment structure 290 of the sixth embodiment, the base end of the wire 60 can be removed from the movable member 96 only by removing the pair of knobs 298A, 298B from the pair of mounting holes 302A, 302B. .
　したがって、第６実施形態の取付構造２９０によれば、第１実施形態の取付構造１７０と同様に、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the attachment structure 290 of the sixth embodiment, the attaching / detaching operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as in the attachment structure 170 of the first embodiment. It can be carried out.
　以上により、第６実施形態の取付構造２９０を有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the attachment structure 290 of the sixth embodiment, the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
　次に、図４１から図４３を参照して、第７実施形態の取付構造３１０について説明する。 Next, the attachment structure 310 of the seventh embodiment will be described with reference to FIGS.
　図４１は、取付構造３１０の斜視図であり、図４２及び図４３は、取付構造３１００の組立斜視図である。 41 is a perspective view of the mounting structure 310, and FIGS. 42 and 43 are assembly perspective views of the mounting structure 3100. FIG.
　図４２に示すように、取付構造３１０は、可動部材９６と取付部材３１２とから構成される。 42, the attachment structure 310 includes a movable member 96 and an attachment member 312.
　可動部材９６の梁部１６０には、固定軸部３１６が設けられている。また、取付部材３１２は板状に構成され、固定軸部３１６に嵌合される固定穴３１８が設けられている。 A fixed shaft portion 316 is provided on the beam portion 160 of the movable member 96. Further, the attachment member 312 is formed in a plate shape and is provided with a fixing hole 318 to be fitted to the fixed shaft portion 316.
　また、取付部材３１２には抜け止め孔３２０が設けられており、可動部材９６には、抜け止め孔３２０に嵌合される抜け止め部３２２が設けられている。この抜け止め部３２２は軸状に構成される。また、抜け止め部３２２は、ポリプロピレン等の軟質の樹脂シート３２４に一体に設けられるとともに、樹脂シート３２４を介して梁部１６０に連結されている。 Also, the attachment member 312 is provided with a retaining hole 320, and the movable member 96 is provided with a retaining part 322 that is fitted into the retaining hole 320. The retaining portion 322 is formed in a shaft shape. Further, the retaining portion 322 is provided integrally with a soft resin sheet 324 such as polypropylene and is connected to the beam portion 160 via the resin sheet 324.
　このように構成された取付構造３１０によれば、図４３の如く固定軸部３１６に固定穴３１８を嵌合し、図４１の如く抜け止め孔３２０に抜け止め部３２２を嵌合する。 According to the mounting structure 310 thus configured, the fixing hole 318 is fitted into the fixed shaft portion 316 as shown in FIG. 43, and the retaining portion 322 is fitted into the retaining hole 320 as shown in FIG.
　よって、第７実施形態の取付構造３１０によれば、固定軸部３１６に固定穴３１８を嵌合し、抜け止め孔３２０に抜け止め部３２２を嵌合する作業だけで、ワイヤ６０の基端を可動部材９６に取り付けることができる。 Therefore, according to the attachment structure 310 of the seventh embodiment, the base end of the wire 60 can be secured only by fitting the fixing hole 318 to the fixed shaft portion 316 and fitting the retaining portion 322 to the retaining hole 320. The movable member 96 can be attached.
　一方、内視鏡１０の洗浄時に、ワイヤ６０の基端を可動部材９６から取り外す場合には、抜け止め孔３２０から抜け止め部３２２を引き抜き、固定軸部３１６から固定穴３１８を引き抜く。 On the other hand, when removing the proximal end of the wire 60 from the movable member 96 during the cleaning of the endoscope 10, the retaining portion 322 is pulled out from the retaining hole 320 and the fixing hole 318 is pulled out from the fixed shaft portion 316.
　よって、第７実施形態の取付構造３１０によれば、抜け止め孔３２０から抜け止め部３２２を引き抜いた後、固定軸部３１６から固定穴３１８を引き抜く作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the attachment structure 310 of the seventh embodiment, the base end of the wire 60 can be moved to the movable member only by pulling out the fixing hole 318 from the fixed shaft portion 316 after pulling out the retaining portion 322 from the retaining hole 320. 96 can be removed.
　したがって、第７実施形態の取付構造３１０によれば、第１実施形態の取付構造１７０と同様に、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the attachment structure 310 of the seventh embodiment, similarly to the attachment structure 170 of the first embodiment, the attachment / detachment operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed. It can be carried out.
　以上により、第７実施形態の取付構造３１０を有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the attachment structure 310 of the seventh embodiment, the cleaning performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
　なお、取付構造３１０では、可動部材９６に固定軸部３１６を設け、取付部材３１２に固定穴３１８を設けたが、これに限定されず、可動部材９６に固定穴３１８を設け、取付部材３１２に固定軸部３１６を設けてもよい。 In the attachment structure 310, the fixed shaft portion 316 is provided in the movable member 96 and the fixing hole 318 is provided in the attachment member 312. However, the present invention is not limited to this, and the fixed hole 318 is provided in the movable member 96. A fixed shaft portion 316 may be provided.
　また、取付構造３１０では、取付部材３１２に抜け止め孔３２０を設け、可動部材９６に抜け止め部３２２を設けたが、これに限定されず、取付部材３１２に抜け止め部３２２を設け、可動部材９６に抜け止め孔３２０を設けてもよい。 In the mounting structure 310, the retaining member 312 is provided with the retaining hole 320, and the movable member 96 is provided with the retaining portion 322. However, the present invention is not limited thereto, and the mounting member 312 is provided with the retaining portion 322. 96 may be provided with a retaining hole 320.
　次に、図４４及び図４７を参照して、第８実施形態の取付構造３３０について説明する。 Next, with reference to FIG.44 and FIG.47, the attachment structure 330 of 8th Embodiment is demonstrated.
　図４４は、取付構造３３０の斜視図であり、図４５は、取付構造３３０の組立斜視図である。また、図４６は、取付構造３３０の要部構成を示した断面図であり、図４７は、後述する軸部３３４が押し当て部３４６によって破断される状態を示した説明図である。 44 is a perspective view of the mounting structure 330, and FIG. 45 is an assembly perspective view of the mounting structure 330. FIG. 46 is a cross-sectional view showing the main configuration of the mounting structure 330, and FIG. 47 is an explanatory view showing a state where a shaft portion 334, which will be described later, is broken by the pressing portion 346.
　図４５に示すように、取付構造３１０は、可動部材９６と取付部材３３２とから構成される。 As shown in FIG. 45, the attachment structure 310 includes a movable member 96 and an attachment member 332.
　取付部材３３２には、ワイヤ６０の軸線方向に延在する軸部３３４と、軸部３３４の長手軸方向の中央部に形成された小径部３３６と、軸部３３４の一方の端部に設けられた第１係止部３３８と、軸部３３４の他方の端部に設けられた第２係止部３４０とが設けられている。 The attachment member 332 is provided at a shaft portion 334 extending in the axial direction of the wire 60, a small-diameter portion 336 formed at the center portion in the longitudinal axis direction of the shaft portion 334, and one end portion of the shaft portion 334. A first locking portion 338 and a second locking portion 340 provided at the other end of the shaft portion 334 are provided.
　第１係止部３３８は、軸部３３４の直径よりも大径のストッパ部３３８Ａと、ストッパ部３３８Ａに形成された摘まみ部３３８Ｂとを有している。また、第２係止部３４０も同様に、軸部３３４の直径よりも大径のストッパ部３４０Ａと、ストッパ部３４０Ａに形成された摘まみ部３４０Ｂとを有している。 The first locking portion 338 has a stopper portion 338A having a diameter larger than the diameter of the shaft portion 334 and a knob portion 338B formed on the stopper portion 338A. Similarly, the second locking portion 340 includes a stopper portion 340A having a diameter larger than the diameter of the shaft portion 334 and a knob portion 340B formed on the stopper portion 340A.
　可動部材９６の梁部１６０には、軸部３３４を収容する固定溝３４２と、固定溝３４２に軸部３３４が収容されたときに第１係止部３３８のストッパ部３３８Ａと第２係止部３４０のストッパ部３４０Ａとに当接されて軸部３３４の長手軸方向の移動を規制する抜け止め部３４４と、固定溝３４２に形成されて固定溝３４２に軸部３３４が収容されたときに軸部３３４の中央部に当接される凸状の押し当て部３４６（図４６参照）とが設けられる。 The beam portion 160 of the movable member 96 includes a fixed groove 342 that receives the shaft portion 334, and a stopper portion 338 </ b> A and a second lock portion of the first locking portion 338 when the shaft portion 334 is received in the fixed groove 342. 340 is abutting against the stopper portion 340A of the 340 and restricts the movement of the shaft portion 334 in the longitudinal axis direction, and a shaft formed when the shaft portion 334 is accommodated in the fixed groove 342 formed in the fixed groove 342. A convex pressing portion 346 (see FIG. 46) that is in contact with the central portion of the portion 334 is provided.
　図４６の如く、抜け止め部３４４は、軸部３３４の長手方向に沿って互いに隙間をもって配置された一対の抜け止め片３４４Ａ、３４４Ａと、一対の抜け止め片３４４Ａ、３４４Ａを互いに近づく方向に付勢する一対の弾性部材３４４Ｂ、３４４Ｂと、を有している。なお、弾性部材３４４Ｂが本発明の付勢部材に相当する。 As shown in FIG. 46, the retaining portion 344 is provided with a pair of retaining pieces 344A and 344A and a pair of retaining portions 344A and 344A that are disposed with a gap along the longitudinal direction of the shaft portion 334 in a direction approaching each other. A pair of elastic members 344B and 344B. The elastic member 344B corresponds to the biasing member of the present invention.
　このように構成された取付構造３３０によれば、摘まみ部３３８Ｂ、３４０Ｂを指で摘まんで軸部３３４を、一対の抜け止め片３４４Ａ、３４４Ａの間の隙間から弾性部材３４４Ｂ、３４４Ｂの付勢力に抗して固定溝３４２に収容する。これにより、軸部３３４の軸方向の移動が抜け止め部３４４によって規制され、軸部３３４の固定溝３４３からの抜けが一対の抜け止め片３４４Ａ、３４４Ａによって防止される。 According to the mounting structure 330 configured in this manner, the knobs 338B and 340B are picked with fingers, and the shaft part 334 is urged by the elastic members 344B and 344B from the gap between the pair of retaining pieces 344A and 344A. To be accommodated in the fixing groove 342. Accordingly, the axial movement of the shaft portion 334 is restricted by the retaining portion 344, and the shaft portion 334 is prevented from being detached from the fixing groove 343 by the pair of retaining portions 344A and 344A.
　よって、第８実施形態の取付構造３３０によれば、軸部３３４を固定溝３４２に収容する作業だけで、ワイヤ６０の基端を可動部材９６に取り付けることができる。 Therefore, according to the attachment structure 330 of the eighth embodiment, the base end of the wire 60 can be attached to the movable member 96 only by the operation of accommodating the shaft portion 334 in the fixed groove 342.
　一方、内視鏡１０の洗浄時に、ワイヤ６０の基端を可動部材９６から取り外す場合には、摘まみ部３３８Ｂ、３４０Ｂを摘まんで軸部３３４を固定溝３４２に向けて押圧する。これにより、小径部３３６が押し当て部３４６に押圧され、小径部３３６が図４７の如く破断して軸部３３４が２本の軸部３３４Ａ、３３４Ａに分割される。この後、２本の軸部３３４Ａ、３３４Ａを固定溝３４２から各々の軸方向に引き抜く。 On the other hand, when the proximal end of the wire 60 is removed from the movable member 96 when the endoscope 10 is cleaned, the knobs 338B and 340B are picked and the shaft part 334 is pressed toward the fixed groove 342. As a result, the small diameter portion 336 is pressed by the pressing portion 346, the small diameter portion 336 is broken as shown in FIG. 47, and the shaft portion 334 is divided into two shaft portions 334A and 334A. Thereafter, the two shaft portions 334A and 334A are pulled out from the fixing groove 342 in the respective axial directions.
　よって、第８実施形態の取付構造３３０によれば、軸部３３４を２本の軸部３３４Ａ、３３４Ａに分割し、２本の軸部３３４Ａ、３３４Ａを固定溝３４２から引き抜く作業だけで、ワイヤ６０の基端を可動部材９６から取り外すことができる。 Therefore, according to the attachment structure 330 of the eighth embodiment, the wire 60 can be obtained simply by dividing the shaft portion 334 into the two shaft portions 334A and 334A and pulling out the two shaft portions 334A and 334A from the fixing groove 342. Can be removed from the movable member 96.
　したがって、第８実施形態の取付構造３３０によれば、第１実施形態の取付構造１７０と同様に、起立操作機構１２０（図９及び図１０参照）に対するワイヤ６０の基端の着脱操作を容易に行うことができる。 Therefore, according to the attachment structure 330 of the eighth embodiment, the attachment / detachment operation of the proximal end of the wire 60 with respect to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed in the same manner as the attachment structure 170 of the first embodiment. It can be carried out.
　以上により、第８実施形態の取付構造３３０を有する実施形態の内視鏡１０によれば、起立操作機構１２０に対するワイヤ６０の基端の着脱操作を容易に行いつつ、内視鏡１０の洗浄性を向上させることができる。 As described above, according to the endoscope 10 of the embodiment having the mounting structure 330 of the eighth embodiment, the rinsing performance of the endoscope 10 can be easily performed while the proximal end of the wire 60 is easily attached to and detached from the standing operation mechanism 120. Can be improved.
　上記の実施形態によって、本発明の可動部材に対する取付部材の取付構造の具体例を説明したが、本発明は、上記の実施形態に限定されるものではなく、本発明の範囲であれば、上記の実施形態に種々の変形及び置換を加えることができる。 Although the specific example of the attachment structure of the attachment member with respect to the movable member of the present invention has been described by the above embodiment, the present invention is not limited to the above embodiment, and is within the scope of the present invention. Various modifications and substitutions can be added to the embodiment.
　上記の実施形態では、内視鏡１０として十二指腸鏡を例示して説明したが、挿入部の先端部に処置具の導出方向を調整する起立台を備える内視鏡であれば、超音波内視鏡等の各種内視鏡に本発明を適用することができる。 In the above-described embodiment, a duodenoscope has been exemplified and described as the endoscope 10. However, if the endoscope is provided with an upright table that adjusts the leading direction of the treatment tool at the distal end portion of the insertion portion, ultrasonic endoscope The present invention can be applied to various endoscopes such as mirrors.
１０　内視鏡
１２　内視鏡システム
１４　プロセッサ装置
１６　光源装置
１８　ディスプレイ
２０　起立操作レバー
２２　操作部
２１　ネジ穴
２２Ａ　一方の側面
２２Ｂ　他方の側面
２３　開口部
２４　挿入部
２６　先端部
２８　先端部材
２８Ａ　周面
３０　起立台
３０Ａ　ガイド面
３０Ｂ　基部
３２　操作部本体
３４　把持部
３６　延設部
３８　折れ止め管
３８Ａ　基端部
４０　フランジ
４２　処置具導入口
４４　マウント部
４４Ａ　先端部
４６　ユニバーサルコード
４８　電気コネクタ
５０　光源コネクタ
５２　湾曲部
５４　軟性部
５６　処置具
５６Ａ　先端部
５８　処置具チャンネル
６０　ワイヤ
６２　ワイヤチャンネル
６４　アングルノブ
６６　送気送水ボタン
６８　吸引ボタン
７０　送気送水ノズル
７２　処置具導出口
７４　導出口
７６　キャップ部材
７６Ａ　開口窓
７８　隔壁
７８Ａ　軸受部
８０　隔壁
８０Ａ　軸受部
８２　起立台収容室
８４　回動軸部
８６　回動軸部
８８　光学系収容室
９０　照明窓
９２　観察窓
９４　導入口
９５　弁体
９６　可動部材
９８　取付部材
９８Ａ　取付部材
１００　係合部材
１０２　収容溝
１０４　開口
１０６　係合用誘導部
１０８　係合用誘導路
１１０　変形発生部
１１２　溝
１１４　溝
１１６　離脱用誘導面
１２０　起立操作機構
１２４　第１変換機構
１２６　ワイヤ
１２８　第２変換機構
１３０　クランク部材
１３２　第１スライダ
１３４　第２スライダ
１３６　レバー
１３８　第１ギア
１４０　第２ギア
１４２　第３ギア
１４４　第４ギア
１４６　ブラケット
１４８　軸部
１５０　軸部
１５２　回転軸
１５４　回転体
１５６　スリーブ
１５８　Ｏリング
１６０　梁部
１６０Ａ　裏面
１６２　第１の軸受部
１６３　凹部
１６４　第２の軸受部
１６５　貫通孔
１６６　Ｏリング
１６７…キャップ部材
１６８　従動軸
１６９　スペーサ
１７０　取付構造
１７０Ａ　取付構造
１７２　ワイヤ組立体
１７４　係合穴
１７４Ａ　係合穴
１７５　縁部
１７６　係合部
１７６Ａ　係合部
１７７　筒状部
１７８　芯部
１８０　穴部
１８２　切欠き
１８２Ａ　すり割り部
１８４　弾性変形部
１８４Ａ　すり割り部
１８６　爪部
１８６Ａ　爪部
１８７　テーパ部
２００　分岐管
２０２　先端管
２０４　管路
２０６　管路
２０８　吸引管
２１０　取付構造
２１２　取付部材
２１４　係合穴
２１６　係合部
２１８　摘まみ部
２２０　軸部
２２２　穴部
２２４　幅狭部
２２６　幅広部
２２８　拡径部
２３０　摩擦抵抗部
２３２　取付構造
２３４　取付部材
２３６　係合部
２３７　すり割り溝
２３８　拡径部
２４０　取付構造
２４２　可動部材
２４４　取付部材
２４６　円筒体
２４８　溝
２５０　溝
２５２　環状体
２５３　スリット
２５４　ピン
２５６　ピン
２７０　取付構造
２７２　取付部材
２７４　軸部
２７６　連結部
２７８　係止部
２８０　装着穴
２８２　係止溝部
２８４　切欠部
２８６　ワイヤ溝部
２９０　取付構造
２９２　取付部材
２９４Ａ　爪部
２９４Ｂ　爪部
２９６　バネ
２９８Ａ　摘まみ部
２９８Ｂ　摘まみ部
３００　軸
３０２Ａ　装着穴
３０２Ｂ　装着穴
３１０　取付構造
３１２　取付部材
３１６　固定軸部
３１８　固定穴
３２０　抜け止め孔
３２２　抜け止め部
３２４　樹脂シート
３３０　取付構造
３３２　取付部材
３３４　軸部
３３６　小径部
３３８　第１係止部
３３８Ａ　ストッパ部
３３８Ｂ　摘まみ部
３４０　第２係止部
３４０Ａ　ストッパ部
３４０Ｂ　摘まみ部
３４２　固定溝
３４４　抜け止め部
３４４Ａ　抜け止め片
３４４Ｂ　弾性部材
３４６　押し当て部 DESCRIPTION OF SYMBOLS 10 Endoscope 12 Endoscope system 14 Processor apparatus 16 Light source apparatus 18 Display 20 Standing operation lever 22 Operation part 21 Screw hole 22A One side surface 22B The other side surface 23 Opening part 24 Insertion part 26 Tip part 28 Tip member 28A Circumferential surface 30 Standing base 30A Guide surface 30B Base 32 Operation unit main body 34 Holding part 36 Extension part 38 Folding prevention pipe 38A Base end part 40 Flange 42 Treatment instrument introduction port 44 Mount part 44A Tip part 46 Universal cord 48 Electric connector 50 Light source connector 52 Curved portion 54 Soft portion 56 Treatment instrument 56A Tip 58 Treatment instrument channel 60 Wire 62 Wire channel 64 Angle knob 66 Air / water supply button 68 Suction button 70 Air supply / water supply nozzle 72 Treatment instrument outlet 74 Outlet 76 Cap member 76A Opening window 78 Bulkhead 78A Bearing 80 Wall 80A Bearing portion 82 Standing table accommodating chamber 84 Rotating shaft portion 86 Rotating shaft portion 88 Optical system accommodating chamber 90 Illuminating window 92 Observation window 94 Inlet 95 Valve body 96 Movable member 98 Mounting member 98A Mounting member 100 Engaging member 102 Housing groove 104 Opening 106 Engaging guide part 108 Engaging guide path 110 Deformation generating part 112 Groove 114 Groove 116 Detaching guide surface 120 Standing operation mechanism 124 First conversion mechanism 126 Wire 128 Second conversion mechanism 130 Crank member 132 First slider 134 Second slider 136 Lever 138 First gear 140 Second gear 142 Third gear 144 Fourth gear 146 Bracket 148 Shaft portion 150 Shaft portion 152 Rotating shaft 154 Rotating body 156 Sleeve 158 O-ring 160 Beam portion 160A Back surface 162 First side Bearing part 163 Recessed part 164 Second bearing part 165 Through hole 166 O 167 ... cap member 168 driven shaft 169 spacer 170 mounting structure 170A mounting structure 172 wire assembly 174 engagement hole 174A engagement hole 175 edge portion 176 engagement portion 176A engagement portion 177 cylindrical portion 178 core portion 180 hole portion 182 Notch 182A Slotted portion 184 Elastically deformable portion 184A Slotted portion 186 Claw portion 186A Claw portion 187 Tapered portion 200 Branch pipe 202 End pipe 204 Pipe line 206 Pipe line 208 Suction pipe 210 Mounting structure 212 Mounting member 214 Engaging hole 216 Engagement Joint section 218 Knob section 220 Shaft section 222 Hole section 224 Narrow section 226 Wide section 228 Large diameter section 230 Friction resistance section 232 Mounting structure 234 Mounting member 236 Slitting groove 238 Large diameter section 240 Widening section 240 Mounting structure 242 Movable Member 244 Mounting member 246 Cylindrical body 248 Groove 250 Groove 252 Annular 253 Slit 254 Pin 256 Pin 270 Mounting structure 272 Mounting member 274 Shaft portion 276 Connecting portion 278 Locking portion 280 Mounting hole 282 Locking groove portion 284 Notch portion 286 Wire groove portion 290 Mounting structure 292 Mounting member 294A Claw portion 294B Claw portion 296 Spring 298A Knob section 298B Knob section 300 Shaft 302A Mounting hole 302B Mounting hole 310 Mounting structure 312 Mounting member 316 Fixed shaft section 318 Fixed hole 320 Retaining hole 322 Retaining section 324 Resin sheet 330 Mounting structure 332 Mounting member 334 Shaft section 336 Small diameter Portion 338 first locking portion 338A stopper portion 338B knob portion 340 second locking portion 340A stopper portion 340B knob portion 342 fixing groove 344 retaining portion 344A retaining member 344B elastic member 346 pressing portion

Claims (17)

  1. 　操作部材が設けられた操作部と、
    　前記操作部の先端側に設けられた挿入部と、
    　前記挿入部の先端部に設けられた処置具起立台と、
    　前記操作部の外部に露出配置され、前記操作部材の操作に連動して動作する可動部材と、
    　前記操作部の外部に露出配置されて、前記可動部材を前記操作部に回転自在に支持する第１の軸部と、
    　前記可動部材の一端側に備えられた第１の軸受部であって、前記操作部に対向する内側面に有底の凹部が形成され、前記凹部に前記第１の軸部を収容することにより前記第１の軸部を覆う第１の軸受部と、
    　前記第１の軸部の外周面と前記第１の軸受部の前記凹部の内周面との間に配置されたシール部材と、
    　先端側が前記処置具起立台に連結され、基端側が前記可動部材に連結され、前記可動部材の動作に応じて押し引きされることにより前記処置具起立台を動作させる起立操作ワイヤと、
    　前記起立操作ワイヤの基端に設けられ、前記可動部材に着脱自在に係合する取付部材と、
    　を備える内視鏡。     An operation unit provided with an operation member;
    An insertion portion provided on a distal end side of the operation portion;
    A treatment instrument stand provided at the distal end of the insertion portion;
    A movable member that is exposed outside the operation unit and operates in conjunction with the operation of the operation member;
    A first shaft part that is exposed outside the operation part and rotatably supports the movable member on the operation part;
    A first bearing portion provided on one end side of the movable member, wherein a bottomed concave portion is formed on an inner surface facing the operation portion, and the first shaft portion is accommodated in the concave portion. A first bearing portion covering the first shaft portion;
    A seal member disposed between an outer peripheral surface of the first shaft portion and an inner peripheral surface of the concave portion of the first bearing portion;
    An erection operation wire for operating the treatment instrument erection base by connecting a distal end side to the treatment instrument erection base, a proximal end side connected to the movable member, and being pushed and pulled according to the operation of the movable member;
    An attachment member provided at a proximal end of the standing operation wire and detachably engaged with the movable member;
    An endoscope comprising:
  2. 　前記第１の軸部は、前記操作部の操作を前記可動部材に伝達する軸部である、
    　請求項１に記載の内視鏡。     The first shaft portion is a shaft portion that transmits the operation of the operation portion to the movable member.
    The endoscope according to claim 1.
  3. 　前記可動部材の他端側に備えられた第２の軸受部であって、前記操作部に対向する内側面から前記内側面とは反対側の外側面に向けた貫通孔を有する第２の軸受部と、
    　前記貫通孔に挿入されて前記操作部に固定され、前記貫通孔を介して前記第２の軸受部を前記操作部に軸支する第２の軸部と、
    　前記貫通孔の前記外側面側の開口部を閉塞する閉塞部材と、
    　を有する請求項１又は２に記載の内視鏡。     2nd bearing part provided in the other end side of the said movable member, Comprising: The 2nd bearing which has a through-hole toward the outer side surface on the opposite side to the said inner surface from the inner surface facing the said operation part And
    A second shaft portion inserted into the through hole and fixed to the operation portion, and pivotally supporting the second bearing portion to the operation portion via the through hole;
    A closing member for closing the opening on the outer surface side of the through hole;
    The endoscope according to claim 1, comprising:
  4. 　前記可動部材と前記取付部材とのいずれか一方には係合穴が設けられ、他方には前記係合穴に着脱自在に係合する係合部が設けられる、
    　請求項１から３のいずれか１項に記載の内視鏡。     Either one of the movable member and the attachment member is provided with an engagement hole, and the other is provided with an engagement portion that is detachably engaged with the engagement hole.
    The endoscope according to any one of claims 1 to 3.
  5. 　前記係合部には、前記係合穴に弾性変形して係合する弾性変形部が設けられる、
    　請求項４に記載の内視鏡。     The engagement portion is provided with an elastic deformation portion that is elastically deformed and engaged with the engagement hole.
    The endoscope according to claim 4.
  6. 　前記弾性変形部には、前記係合穴の縁部に係止する弾性変形可能な一対の爪部が形成され、前記係合穴と前記係合部とを係合または係合解除する際に、前記一対の爪部を弾性変形により互いに近づける方向に変位させる、
    　請求項５に記載の内視鏡。     The elastic deformation portion is formed with a pair of elastically deformable claw portions that are engaged with an edge portion of the engagement hole. When the engagement hole and the engagement portion are engaged or disengaged, , Displacing the pair of claws in a direction to approach each other by elastic deformation,
    The endoscope according to claim 5.
  7. 　前記係合部は、前記係合穴に挿入される筒状部を有し、
    　前記弾性変形部は、前記筒状部の先端部に設けられたすり割り部によって構成され、前記筒状部の先端部が前記係合穴に挿入される際、前記すり割り部は弾性変形により縮径可能に構成される、
    　請求項５に記載の内視鏡。     The engaging portion has a cylindrical portion inserted into the engaging hole,
    The elastic deformation portion is configured by a slit portion provided at a distal end portion of the cylindrical portion, and when the distal end portion of the cylindrical portion is inserted into the engagement hole, the slit portion is elastically deformed. Constructed to reduce diameter,
    The endoscope according to claim 5.
  8. 　前記係合穴は、第１幅を有する幅狭部と、前記第１幅よりも大きい第２幅を有する幅広部とを有し、
    　前記係合部は、前記第１幅以下の外径を有する軸部と、前記軸部の先端に設けられ、前記第１幅よりも大きく且つ前記第２幅よりも小さい外径を有する拡径部とを有する、
    　請求項４に記載の内視鏡。     The engagement hole has a narrow portion having a first width and a wide portion having a second width larger than the first width,
    The engaging portion is provided with a shaft portion having an outer diameter equal to or smaller than the first width, and an enlarged diameter provided at a tip of the shaft portion and having an outer diameter larger than the first width and smaller than the second width. Having a part,
    The endoscope according to claim 4.
  9. 　前記係合穴は、第１幅を有する幅狭部と、前記第１幅よりも大きい第２幅を有する幅広部とを有し、
    　前記係合部は、前記第１幅以下の外径を有する軸部と、前記軸部の先端に設けられ、前記第２幅よりも大きい外径を有し且つ複数のすり割り溝が形成された、前記弾性変形部となる拡径部とを有し、
    　前記拡径部が前記幅広部に挿入される際、前記拡径部は、前記複数のすり割り溝によって弾性変形して縮径可能に構成される、
    　請求項５に記載の内視鏡。     The engagement hole has a narrow portion having a first width and a wide portion having a second width larger than the first width,
    The engaging portion is provided at a shaft portion having an outer diameter equal to or smaller than the first width and a tip of the shaft portion, has an outer diameter larger than the second width, and has a plurality of slits. And having an enlarged diameter portion to be the elastically deformable portion,
    When the enlarged diameter portion is inserted into the wide portion, the enlarged diameter portion is configured to be elastically deformed by the plurality of slits and to be reduced in diameter.
    The endoscope according to claim 5.
  10. 　前記係合穴は、前記幅狭部と前記幅広部との間で前記軸部を移動させる際に、前記軸部の外周面に当接することにより前記軸部に摩擦抵抗を付与する摩擦抵抗部を有する、
    　請求項８又は９に記載の内視鏡。     The engagement hole is configured to apply a frictional resistance to the shaft portion by contacting the outer peripheral surface of the shaft portion when the shaft portion is moved between the narrow portion and the wide portion. Having
    The endoscope according to claim 8 or 9.
  11. 　前記可動部材と前記取付部材とのいずれか一方には前記起立操作ワイヤの軸線方向に垂直な方向に延在する円筒体が設けられ、他方には前記円筒体の外周に回転自在に係合する環状体が設けられ、
    　前記円筒体と前記環状体との相対回転を規制する回転規制ストッパを備える、
    　請求項１から３のいずれか１項に記載の内視鏡。     One of the movable member and the mounting member is provided with a cylindrical body extending in a direction perpendicular to the axial direction of the standing operation wire, and the other is rotatably engaged with the outer periphery of the cylindrical body. An annular body is provided,
    A rotation restriction stopper for restricting relative rotation between the cylindrical body and the annular body;
    The endoscope according to any one of claims 1 to 3.
  12. 　前記取付部材には、前記起立操作ワイヤの軸線方向に垂直な方向に延在する軸部と、前記軸部の長手軸に垂直な方向に延在する連結部と、前記連結部の前記軸部と反対側に設けられた係止部とが設けられ、
    　前記可動部材には、前記軸部が挿入される装着穴と、前記装着穴に前記軸部が挿入された状態で前記軸部の長手軸を中心に前記軸部を回転させたときに前記係止部が係止される係止溝部とが設けられる、
    　請求項１から３のいずれか１項に記載の内視鏡。     The mounting member includes a shaft portion extending in a direction perpendicular to the axial direction of the standing operation wire, a connecting portion extending in a direction perpendicular to the longitudinal axis of the shaft portion, and the shaft portion of the connecting portion. And a locking portion provided on the opposite side,
    The movable member includes a mounting hole into which the shaft portion is inserted, and the engagement portion when the shaft portion is rotated around the longitudinal axis of the shaft portion with the shaft portion being inserted into the mounting hole. A locking groove for locking the locking portion is provided,
    The endoscope according to any one of claims 1 to 3.
  13. 　前記連結部には、前記連結部の延在方向に沿ったワイヤ溝部であって、前記係止部を前記係止溝部に係止させたときに前記起立操作ワイヤを収容する前記ワイヤ溝部が設けられる、
    　請求項１２に記載の内視鏡。     The connecting portion is provided with a wire groove portion along the extending direction of the connecting portion, the wire groove portion accommodating the standing operation wire when the locking portion is locked to the locking groove portion. Be
    The endoscope according to claim 12.
  14. 　前記取付部材には、一対の爪部と、前記一対の爪部を互いに近づける方向に付勢する付勢部材と、前記付勢部材の付勢力に抗して前記一対の爪部を互いに遠ざかる方向に移動させるための摘まみ部とが設けられ、
    　前記可動部材には、前記付勢部材の付勢力により前記一対の爪部が装着される一対の装着穴が設けられる、
    　請求項１から３のいずれか１項に記載の内視鏡。     The mounting member includes a pair of claws, a biasing member that biases the pair of claws in a direction to approach each other, and a direction in which the pair of claws are moved away from each other against the biasing force of the biasing member. And a knob for moving the
    The movable member is provided with a pair of mounting holes in which the pair of claws are mounted by the biasing force of the biasing member.
    The endoscope according to any one of claims 1 to 3.
  15. 　前記可動部材と前記取付部材とのいずれか一方には固定軸部が設けられ、他方には前記固定軸部が嵌合される固定穴が設けられ、
    　前記可動部材と前記取付部材とのいずれか一方には抜け止め孔が設けられ、他方には前記抜け止め孔に嵌合される抜け止め部が設けられる、
    　請求項１から３のいずれか１項に記載の内視鏡。     Either one of the movable member and the mounting member is provided with a fixed shaft portion, and the other is provided with a fixed hole into which the fixed shaft portion is fitted.
    Either one of the movable member and the mounting member is provided with a retaining hole, and the other is provided with a retaining part fitted to the retaining hole.
    The endoscope according to any one of claims 1 to 3.
  16. 　前記取付部材には、前記起立操作ワイヤの軸線方向に延在する軸部と、前記軸部の長手軸方向の中央部に形成された小径部と、前記軸部の一方の端部に設けられた第１係止部と、前記軸部の他方の端部に設けられた第２係止部とが設けられ、
    　前記可動部材には、前記軸部を収容する固定溝と、前記固定溝に前記軸部が収容されたときに前記第１係止部と前記第２係止部とに当接されて前記軸部の長手軸方向の移動を規制する抜け止め部と、前記固定溝に形成されて前記固定溝に前記軸部が収容されたときに前記軸部の中央部に当接される凸状の押し当て部とが設けられる、
    　請求項１から３のいずれか１項に記載の内視鏡。     The mounting member is provided at a shaft portion extending in the axial direction of the standing operation wire, a small diameter portion formed at a central portion in the longitudinal axis direction of the shaft portion, and one end portion of the shaft portion. A first locking portion and a second locking portion provided at the other end of the shaft portion,
    The movable member includes a fixed groove that receives the shaft portion, and the first locking portion and the second locking portion that are in contact with the shaft when the shaft portion is received in the fixed groove. A retaining portion for restricting movement of the portion in the longitudinal axis direction, and a convex push formed in the fixed groove and abutted against the central portion of the shaft portion when the shaft portion is received in the fixed groove A padding portion is provided,
    The endoscope according to any one of claims 1 to 3.
  17. 　前記抜け止め部は、前記軸部の長手方向に沿って互いに隙間をもって配置された一対の抜け止め片と、前記一対の抜け止め片を互いに近づく方向に付勢する付勢部材と、を有し、
    　前記軸部は、前記一対の抜け止め片の間の前記隙間から前記付勢部材の付勢力に抗して前記固定溝に収容される、
    　請求項１６に記載の内視鏡。     The retaining portion includes a pair of retaining pieces disposed with a gap along the longitudinal direction of the shaft portion, and a biasing member that urges the pair of retaining pieces in a direction approaching each other. ,
    The shaft portion is accommodated in the fixed groove against the urging force of the urging member from the gap between the pair of retaining pieces.
    The endoscope according to claim 16.
PCT/JP2019/000018 2018-02-09 2019-01-04 Endoscope WO2019155795A1 (en)

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