WO2015194486A1 - 内視鏡装置 - Google Patents
内視鏡装置 Download PDFInfo
- Publication number
- WO2015194486A1 WO2015194486A1 PCT/JP2015/067082 JP2015067082W WO2015194486A1 WO 2015194486 A1 WO2015194486 A1 WO 2015194486A1 JP 2015067082 W JP2015067082 W JP 2015067082W WO 2015194486 A1 WO2015194486 A1 WO 2015194486A1
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- WIPO (PCT)
- Prior art keywords
- gripping
- longitudinal axis
- bending
- endoscope
- end side
- Prior art date
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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
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0052—Constructional details of control elements, e.g. handles
-
- 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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00066—Proximal part of endoscope body, e.g. handles
-
- 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
- A61B1/00112—Connection or coupling means
- A61B1/00114—Electrical cables in or with an endoscope
-
- 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
-
- 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
- A61B1/04—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 combined with photographic or television appliances
- A61B1/045—Control thereof
-
- 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
- A61B1/06—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 with illuminating arrangements
- A61B1/0661—Endoscope light sources
-
- 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
- A61B1/12—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 with cooling or rinsing arrangements
-
- 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
- A61B1/307—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 for the urinary organs, e.g. urethroscopes, cystoscopes
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- 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
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
Definitions
- the present invention relates to an endoscope apparatus including an operation unit capable of a plurality of gripping forms.
- an operation unit (endoscope main body) of an endoscope apparatus is held by an operator with one hand, and the insertion / removal operation of the insertion unit and the operation of forceps are performed with the other hand.
- the normal operation unit is grasped so as to be held with the left hand, and a bending operation lever for performing bending operation of the insertion unit and switches for performing water supply and suction are arranged at a position where each finger reaches.
- a bending operation lever for performing bending operation of the insertion unit and switches for performing water supply and suction are arranged at a position where each finger reaches.
- the left arm is bent and the operation unit is lifted from the chest to the shoulder level, and the middle of the long insertion unit that extends downward from the operation unit is supported by the right hand. Inserted from the opening.
- Patent Document 1 proposes a gun-type (L-type) type operation unit in which an insertion unit extends in the horizontal direction.
- the operation portion grips the grip portion, and the insertion portion extends in the horizontal direction from the front.
- the base end is arranged at the lower part of the operation part, and the insertion part extends downward. Due to this configuration, when used, it is difficult to perform an insertion operation unless the operation unit is lifted to a height higher than the chest while standing.
- the gun-type (L-type) type operation unit of Patent Document 1 is provided with a base end portion of the insertion portion at the front portion (front portion) of the operation portion that protrudes forward from the upper portion of the gripping portion.
- the insertion part extends in the horizontal direction.
- the bending unit when the bending unit is a bending mechanism in the up and down uniaxial direction, in order to observe the left and right direction, the bending direction must be changed by rotating, for example, 90 ° around the axis of the insertion unit. I must. Since the insertion portion extending downward from the operation portion is always bent and used, even if the operation portion is rotated by 90 °, it is not always attenuated by bending and the distal end of the insertion portion is rotated by 90 °. Absent. Therefore, actually, the wrist of the hand holding the operation unit may be turned more than necessary.
- the torque followability and bending performance of the original insertion portion may not be sufficiently exhibited due to the loss of the driving force transmission mechanism (for example, a wire and a pulley) inside the insertion portion. is assumed.
- the L-type operation part has an insertion part extending in the same direction as the insertion direction to the patient, so there is no bending state at the time of insertion, and a decrease in torque followability and bending performance of the insertion part can be avoided.
- the gripping form is uniquely determined by the selection at the time of purchase, Depending on the operator, an endoscope that is difficult to operate is used.
- Embodiments of the present invention provide an endoscope that can be gripped in a plurality of forms according to an operator's request and includes an operation unit that can be operated comfortably regardless of the gripping posture.
- An endoscope includes a long insertion portion that includes a bending portion that can be bent in a uniaxial direction on a distal end side, and extends to a first longitudinal axis that is orthogonal to the uniaxial direction, and the insertion portion.
- a distal end rotating portion having an opening serving as an insertion port for the treatment instrument, and a first grip for connecting the distal end rotating portion to the one end side so as to be rotatable within an arbitrary angle range
- a second gripping portion connected to the other end side of the first gripping portion in an L shape with a second longitudinal axis that forms a predetermined obtuse angle with the first longitudinal axis; and
- a bending operation lever that is provided on the other end side, rotates with an angle that bisects a dominant angle formed by the first longitudinal axis and the second longitudinal axis as an initial position, and bends the bending portion; and the second grip A universal cable extending in a direction substantially parallel to the second longitudinal axis from the bottom end of the first portion, and the first cable
- an endoscope including an operation unit that can be gripped in a plurality of forms in accordance with an operator's request and can be operated comfortably regardless of the gripping posture.
- FIG. 1 is a diagram showing an overall schematic configuration of an example in which an endoscope apparatus according to an embodiment of the present invention is applied to an urological endoscope system.
- FIG. 2 is a diagram illustrating an appearance shape of the operation unit according to the embodiment of the endoscope apparatus of the present invention.
- FIG. 3A is a diagram illustrating a first configuration example of a switch provided on an upper portion of a rear housing portion of the operation unit.
- FIG. 3B is a diagram illustrating a second configuration example of the switch.
- FIG. 4A is a diagram illustrating an external configuration of the operation unit according to the embodiment as viewed obliquely from behind.
- FIG. 4B is a diagram illustrating an external configuration of the operation unit as viewed obliquely from the front.
- FIG. 5 is a diagram illustrating an external configuration of a state in which the operation unit according to the embodiment is gripped in a conventional gripping form as viewed obliquely from the front.
- FIG. 6A is a diagram illustrating a first example viewed from the side having the operation unit in the first gripping form.
- FIG. 6B is a diagram illustrating a first example viewed from above having the operation unit in the first gripping form.
- FIG. 7A is a diagram illustrating a second example having the operation unit in the first gripping form.
- FIG. 7B is a diagram illustrating a second example having the operation unit in the first gripping form.
- FIG. 8 shows a third example having the operation unit in the first gripping form.
- FIG. 9A is a diagram illustrating a first example having an operation unit in a second gripping form.
- FIG. 9B is a diagram illustrating a second example having the operation unit in the second gripping form.
- FIG. 10A is a diagram illustrating a configuration example of the joint surface A of the front main body illustrated in FIG. 2.
- FIG. 10B is a diagram illustrating a configuration example of the joint surface B of the tip rotation portion illustrated in FIG. 2.
- FIG. 11A is a diagram illustrating a front view, a plan view, and a bottom view of the appearance of the endoscope according to the embodiment.
- FIG. 11B is a diagram illustrating a front view, a plan view, and a bottom view of the appearance of the endoscope according to the embodiment.
- FIG. 11A is a diagram illustrating a front view, a plan view, and a bottom view of the appearance of the endoscope according to the embodiment.
- FIG. 11B is a diagram illustrating a front view, a
- FIG. 11C is a diagram illustrating a front view, a plan view, and a bottom view of the appearance of the endoscope according to the embodiment.
- FIG. 12A is a diagram illustrating a rear view, a left side view, and a right side view of the appearance of the endoscope according to the embodiment.
- FIG. 12B is a diagram illustrating a rear view, a left side view, and a right side view of the appearance of the endoscope according to the embodiment.
- FIG. 12C is a diagram illustrating a rear view, a left side view, and a right side view of the appearance of the endoscope according to the embodiment.
- FIG. 1 is a diagram showing an overall schematic configuration of an example in which an endoscope apparatus according to an embodiment of the present invention is applied to a urological endoscope system.
- the endoscope apparatus includes a video processor including an endoscope body 1, a light source device 101 that supplies illumination light, and a camera control unit (CCU) that performs image processing on a video signal captured by the endoscope. 102 and a monitor 103 that displays a video signal output from the video processor 106.
- the endoscope main body 1 is connected to the connector terminal 104 of the light source device 101, the connector terminal 109 of the video processor 105, and the like by the universal cable 5.
- an image recording apparatus that records a video signal and a printer that prints an image on a sheet or the like may be mounted, which is connected to the video processor 102.
- FIG. 2 is a diagram showing an external shape of the operation unit according to the embodiment of the endoscope apparatus.
- FIG. 3A is a diagram illustrating a first configuration example of a switch provided on the upper portion of the rear housing portion of the operation unit
- FIG. 3B is a diagram illustrating a second configuration example of the switch.
- FIG. 4A is a diagram illustrating an external configuration when the operation unit according to the embodiment is viewed obliquely from the rear
- FIG. 4B is a diagram illustrating an external configuration when the operation unit is viewed from diagonally forward.
- FIG. 11A is a diagram showing a front view of the appearance of the endoscope of the present embodiment
- FIG. 11B is a diagram showing a plane (upper surface)
- FIG. 11C is a diagram showing a bottom surface.
- FIG. 12A is a view showing the back of the appearance of the endoscope
- FIG. 12B is a view showing the left side
- FIG. 12C is a view showing the right side.
- the operation unit 1S of the endoscope apparatus of the present embodiment is a gun type (L type) type in which the insertion unit 4 extends in the horizontal direction.
- the insertion portion 4 is long and extends to the first longitudinal axis, and a bending portion 4a is provided at the tip thereof.
- An imaging element for imaging a subject (observation target) and an opening for a forceps hole are provided on the distal end surface of the insertion portion.
- a cleaning nozzle liquid and gas may be provided at the tip of the insertion portion.
- a bending mechanism is assumed in which the bending portion 4a is bent only in one axial direction (or one plane direction) of UP / DOWN.
- a bending mechanism that bends in the biaxial direction of the RIGHT / LEFT direction orthogonal to the UP / DOWN direction may be used.
- the endoscope apparatus of the present embodiment is not shown in the drawing, in addition to the endoscope body, a light source unit that generates illumination light to irradiate the subject site, and predetermined image processing on the captured video signal
- a water supply / air supply pump unit for supplying water or gas to supply a cleaning liquid (for example, physiological saline) used for cleaning, etc., and suction for sucking cleaning liquid or gas containing unnecessary substances from the body cavity A pump unit may be provided.
- a cleaning liquid for example, physiological saline
- the operation unit 1S and the light source unit are connected by a universal cable 5.
- the universal cable 5 includes, in addition to a light guide made of an optical fiber, a plurality of signal lines for transmitting video signals and the like, gas and liquid supply paths (air supply / liquid supply channels) and discharge paths made of tubes.
- the operation portion 1S of the present embodiment has a gun shape (L shape), and a front portion 2 [first gripping portion] extending in the horizontal direction and a rear housing portion 3 [second gripping portion] extending downward are integrated. Constructed.
- the front side of the rear housing portion 3 is the side facing the front portion 2 when a finger is gripped, and the rear side is the side on which the palm abuts when gripped.
- the insertion portion 4 has a distal end side and a proximal end side as viewed from the insertion direction, a bending portion 4a is provided on the distal end side, and the proximal end side is connected to the operation portion 1S.
- a signal line (video signal, sensor signal, etc.), a light guide path, a supply path and a discharge path for gas and liquid, and a forceps hole are disposed in the pipe line of the insertion portion.
- a signal line video signal, sensor signal, etc.
- a light guide path a supply path and a discharge path for gas and liquid, and a forceps hole are disposed in the pipe line of the insertion portion.
- both the supply path and the discharge path are not essential.
- the bottom end side of the rear end of the front part 2 is integrally connected to the upper end side of the rear housing part 3, and a turnable bending operation lever 7 is pivotally supported on the side face of the rear end of the front part 2.
- the rear housing part 3 extends at an inclined rear grip angle.
- the rear grip angle can be appropriately changed in design to suit the usage pattern.
- the bending operation lever 7 with the wrist and arms in a natural state that is, the wrist is not bent
- the angle is set so that it is easy to operate.
- the rear housing portion 3 has an elliptical cross section, and an outer shape is an approximately S curve portion SC1 having an approximately S curve shape along the grip of a finger when grasped, and an approximately S curve shape in which the palm comes into contact
- the S curve portion SC2 is formed.
- the rear housing part 3 is formed such that both side surfaces are at least one step lower on the rear side than the front side, and is provided with a step 14 that smoothly connects these. This is provided so that the finger can be easily caught when grasped and is not shifted or rotated in the hand.
- the rear housing part 3 is provided with a universal cable 5 extending from the bottom end part 6.
- the bottom end 6 has a shape that is smoothly and smoothly tapered from the bottom of the rear housing part 3, functions as a bend stop for the universal cable 5, and also functions as a part of the grip part.
- the universal cable 5 extending from the bottom end 6 is closer to the front at an angle of several degrees (for example, a clearance angle ⁇ of 5 °) with respect to the central axis (second longitudinal axis) of the rear housing part 3. It is provided to tilt. By providing this clearance angle, even if the operator twists the rear housing part 3 and the universal cable 5, the universal cable 5 is separated from the operator's body, particularly the chest, abdomen and arms. It is considered not to interfere with the procedure.
- a recess 13 having a rounded inner surface as shown in FIG. 3A is formed at the upper rear side of the rear housing part 3, and a switch for driving water supply, suction, etc. by a pressing operation in the recess. 11 and 12 are arranged.
- the switches 11 and 12 of the present embodiment are disk-shaped button switches that are turned on when pressed, and are provided in a watertight manner. Only one of the switches (here, switch 11) has a small protrusion at the center of the surface that can be identified when touched.
- switch 11 Only one of the switches (here, switch 11) has a small protrusion at the center of the surface that can be identified when touched.
- a recess 13 is provided so as to be one step lower at the upper rear side of the rear housing portion 3, the inside of the recess 13 is formed in a curved surface in the same manner as described above, and each switch 11 , 12 are provided with ring portions 11a, 12a.
- each switch 11 , 12 are provided with ring portions 11a, 12a.
- the configuration in which the recessed portion 13 is provided is arranged at a position where the periphery of the switches 11 and 12 is recessed from the surface of the rear housing portion 3, and even if palm pressure is applied during gripping, the switch 11 and 12 are not pressed down, thereby realizing no malfunction.
- the depression 13 has a curved depression, the fingertip slides toward the center of the depression as it is pushed even if the fingertip is slightly removed from the switch during operation, so that the switch can be pressed down with certainty.
- the hollow part 13 is formed with a curved surface, dirt does not easily accumulate and cleaning is easy.
- the bending operation lever 7 of the present embodiment is a cantilevered L-shape configured by a rotation support portion 7a and an operation portion 7b, and the rotation support portion 7a rotates to one housing (joint location) side surface. It is supported by a rotating shaft 7c as possible. Furthermore, the surface of the operation part 7b has a non-slip structure with a plurality of parallel grooves. In addition to the grooves, dot-shaped convex portions may be formed so as to be scattered, or a non-slip member may be bonded separately.
- the bending operation lever 7 is approximately 1 / with respect to the intersection angle (dominant angle) ⁇ of the central axis (first longitudinal axis) of the front portion 2 and the central axis (second longitudinal axis) of the rear housing portion 3.
- the position of angle 2 is set as the initial position 0 °.
- the initial position 0 ° is a state in which the bending portion 4a of the insertion portion 4 extends linearly.
- the bending operation lever 7 is configured to be operated by a thumb during gripping.
- the bending operation lever 7 is attached to a known pulling mechanism in the front portion 2, and by turning the bending operation lever 7, a wire disposed in an insertion portion (not shown) is pulled to bend the bending portion 4a. Is curved.
- the center of gravity of the operation unit 1S comes near the intersection where the center axes of the two intersect.
- it is designed to be placed on the finger placement space 10, and when held as shown in FIG. 7A, the center of gravity is placed near the middle finger.
- the rotating shaft 7c is arranged on the rear axis of the front portion 2 so that the rotational movement distance (circumferential length) of the operation portion 7b can be increased.
- the rotation support portion 7a is made longer by lowering about 8 mm below the position of the intersection of the central axes of the housing part 3.
- this numerical value is generated by design and is not limited.
- a finger placement space which is a space for gripping, is separated, and a trigger-shaped finger placement projection 8 serving as a reference for an optimum gripping position is integrally formed. Has been.
- the trigger shape of the present embodiment is a structure in which both side surfaces of the rear housing portion 3 and the front portion 2 are formed with concave curved surfaces formed by a part of a cylindrical surface having a substantially flat surface with respect to the projecting top portion.
- the finger placement spaces 9 and 10 are generated by the curved surface.
- a part of the finger placement space 9 is formed as a substantially flat surface 9F on the front body 22 having a cylindrical shape.
- the operation unit 1S When the operation unit 1S is gripped, for example, by placing an index finger in the finger placement space 9 and a middle finger in the finger placement space 10 as shown in FIG. As a result, it is possible to maintain a stable gripping state. Further, since the finger placement space 9 is provided with a substantially flat surface 9F on the lower surface of the front portion, the area where the index finger hits the front main body 22 becomes large, and it is difficult to feel pain even if it is held for a long time. Therefore, even when gripped for a long time, finer observations and procedures can be realized.
- the front portion 2 has a tapered shape toward the insertion portion 4 and has a cross section formed in a cylinder or an ellipse.
- the front part 2 instead of the rear housing part 3 (second gripping part), the front part 2 has an outer diameter close to that of the rear housing part 3 in order to function as the first gripping part.
- the front portion 2 includes a front main body 22 serving as a first gripping portion, a distal end rotating portion 21 that can be rotated by a rotation mechanism (shown in FIG. 9), and a proximal end side of the insertion portion 4. And a tapered tip portion 15 having a bend preventing function.
- the distal end rotating portion 21 is provided with a forceps port (forceps port) 16 that is an opening, and is inserted through a forceps hole of the insertion portion 4.
- the distal end rotating portion 21 is fixed to the distal end portion 15, and the insertion portion 4 and the forceps port 16 rotate integrally with respect to the front main body 22.
- a rotation range of at least 180 ° and less than 360 ° for the forceps port 16 to rotate and move to the opposite side of the distal end rotating portion 21 is assumed.
- the forceps port 16 is arranged on the upper surface side of the front portion 2 (the unconnected side of the front portion 2 and the rear housing portion) as a first shape.
- the position is set as a reference arrangement position.
- a form that is disposed on the lower surface side of the front part 2 (the connection side between the front part 2 and the rear housing part) will be described as a second form.
- the front main body 22 has a length for gripping by hand, and in addition, has a front grip length that does not interfere with forceps insertion / removal work with respect to the forceps port 16 when gripped. Further, the upper surface of the front main body 22 is substantially parallel to the substantially flat surface 9F of the finger placement space 9 from the bending operation lever 7 to the length where the finger (for example, the index finger) is applied when the rear housing part 3 is gripped. A finger placement space 17 having a substantially flat surface 17F is formed.
- the front main body 22 is also formed so that the upper surface side is one step lower than the lower surface side, and a step 18 is provided to smoothly connect these.
- the step 18 makes it easier to hold the finger when grasping, and it is difficult to cause inadvertent misalignment or rotation in the hand.
- FIG. 10A shows a configuration example of the joint surface A of the front main body 22 shown in FIG. 2
- FIG. 10B shows a configuration example of the joint surface B of the tip rotating portion 21 shown in FIG.
- the front main body 22 and the tip rotating part 21 are connected by a fixed shaft 34 and a rotating shaft 35 that are fitted together, and the tip rotating part 21 is rotatably connected.
- a bearing, an O-ring, or the like is interposed between the fixed shaft 34 and the rotating shaft 35 so as to be rotatable.
- the contact surfaces on the outer periphery of each other are watertight by a waterproof member (not shown).
- the same arc-shaped exit windows 31 a and 31 b are provided for emitting the illumination light guided from the optical fiber of the universal cable 5 in half.
- the rotation range (angle) is set to 180 °.
- the distal end rotating unit 21 joined to the front body 22 is provided with an incident window 32 for illumination light that matches the exit window 31a.
- the entrance window 32 and the exit windows 31a and 31b are provided at positions where the surfaces of the entrance window 32 and the exit windows 31a are slightly retracted from the joint surface, and the window surface is not rubbed even if the joint surface is contacted by rotation.
- the forceps port 16 shown in FIG. 10B is located above, the entrance window 32 faces the exit window 31a, and the illumination light passes through the exit window 31a. 32, and illumination light is irradiated from an illumination window (not shown) provided at the tip of the insertion portion 4.
- the operation unit 1S is configured as shown in FIG. 5 to be described later, as shown in FIG. 10B, the forceps port 16 (shown by a dotted line) is rotated downward, and the incident window 32 (dotted line) is moved. Opposing to the exit window 31b side, the illumination light enters the entrance window 32 through the exit window 31b, and the illumination light is irradiated from the illumination window.
- the signal wiring 33 other than the fiber cable and the supply passage and the discharge passage (tube) are formed in a spiral shape of about 1 or 2 turns like a curled cord, thereby applying a load applied during rotation. Can be reduced.
- a locking mechanism is provided in order to prevent the tip rotating portion 21 from rotating unnecessarily during the procedure.
- a V-groove 36 is formed in the tip rotating portion 21, and a stopper portion 37 is provided in the front main body 22.
- the stopper portion 37 is configured by a spherical stopper portion that is attached to an elastic body such as a spring and moves forward and backward. When the stopper portion 37 is locked, the stopper portion falls into the V groove 36 to prevent unnecessary rotation of the tip rotating portion 21. Further, by changing the elastic force of the elastic member, the locking force for preventing the rotation can be appropriately adjusted.
- grip form of the operation part 1S is demonstrated.
- the configuration in which the operation portion 1S is gripped so that the insertion portion extends in substantially the same horizontal direction as the insertion direction into the patient is referred to as a first gripping configuration, and the insertion portion extends in the vertical direction.
- a form in which the operation unit 1S is grasped is referred to as a second grasping form (conventional operation part grasping form).
- 6A, 6B, FIGS. 7A, 7B, and FIG. 8 show examples in which the operation unit 1S is provided in the first gripping form.
- 9A and 9B show an example in which the operation unit 1S is held in the second gripping form.
- the index finger is placed in the finger placement space 9
- the middle finger is placed in the finger placement space 10
- the rear housing part 3 is gripped so as to sandwich the finger placement projection 8
- the weight of the operation unit 1S is applied to the middle finger and the wrist is gripped in a natural state, the state is stable, and it is easy to operate the lever and the switch with the thumb. Is reduced.
- the insertion portion 4 can be rotated by twisting the wrist, and the bending direction of the bending portion 4a can be easily changed. be able to.
- the loss of the driving force transmission mechanism (for example, a wire and a pulley) inside the insertion portion is reduced, and the torque followability and bending performance of the original insertion portion are reduced. It can be demonstrated. If it is a 1st holding
- the middle finger is placed in the finger placement space 9
- the ring finger is placed in the finger placement space 10
- the rear housing portion 3 is gripped so as to sandwich the finger placement projection 8
- the index finger is gripped by placing the index finger in the flat finger placement space 17 on the upper surface of the front body 22.
- the index finger is placed on the front main body 22, so that the central axis of the front portion 2, that is, the proximal end portion of the insertion portion 4. Is closer to the central axis of the operator's arm (the central axis of wrist rotation).
- the twisting operation of the wrist for rotating the insertion portion 4 is transmitted more finely, and finer observation and procedure can be realized. Further, the distance between the bending operation lever 7 and the thumb is reduced, so that an operator with a small hand can operate the bending operation lever 7 comfortably. Further, the bending operation lever 7 can be operated from the lateral direction, and the accumulation of fatigue of the thumb can be reduced. Further, since the finger placement spaces 9 and 17 are provided with substantially flat surfaces 9F and 17F on the front main body 22, respectively, the area where the index finger and the middle finger hit the front main body 22 becomes large, and even if it is held for a long time, it feels pain. Hateful.
- the first gripping form shown in FIG. 8 is a form in which the finger placement space 9 is opened and the rear housing part 3 below the finger placement space 10 is gripped.
- the distance between the bending operation lever 7 and the thumb is long, and even an operator with a large hand can comfortably grip it.
- FIG. 9A is a diagram illustrating a first example having the operation unit in the second gripping form
- FIG. 9B is a diagram illustrating a second example having the operation unit in the second gripping form.
- the distal end rotating part 21 of the first form shown in FIG. 2 is rotated by 180 ° to move the forceps port 16 from the upper side to the lower side of the front part 2.
- the forceps port 16 is disposed on the rear housing part 3 side as shown in FIG.
- the second gripping form is a gripping form in which a hand is placed from the front part 2 side, an index finger is placed in the finger placement space 10, a middle finger is placed in the finger placement space 9, and the finger placement protrusion 8 is sandwiched. .
- the bending operation lever 7 and the thumb are close to each other, and the lever can be operated comfortably.
- the second gripping form shown in FIG. 9B is a gripping form in which the index finger is placed in the finger placement space 9 and the front part 2 is gripped.
- These second grip forms can grip a conventional type operation unit (a type in which the insertion portion extends from below) and perform observations and procedures by the same operation as the conventional operation unit.
- the front part 2 is thin compared with the grip part of the conventional operation part, it is easy to hold even an operator with a small hand.
- the front portion 2 is also provided with the smooth step 18, the finger is easily hooked when gripped, and it is difficult to cause inadvertent displacement and rotation in the hand.
- the operation part of the endoscope of the present embodiment is configured such that the rear housing part 3 extending the universal cable and the front part 2 extending the insertion part form an L shape. .
- This operation unit can realize two different gripping forms by simply rotating the forceps port and changing the position.
- the insertion part In the first gripping form for gripping the rear housing part 3, the insertion part is substantially the same as the insertion direction into the patient. It extends in the same horizontal direction.
- the insertion part extends downward.
- the operation direction of the bending operation lever 7 and the bending direction of the bending part 4a are opposite. It has become. In other words, since the operation unit 1S is reversed 180 degrees and held at the time of holding, the operation direction of the bending operation lever 7 and the bending direction of the bending portion 4a are switched. However, in addition to the change of the gripping form, the distal end rotating part is further rotated 180 degrees, so that the operation direction of the bending operation lever 7 and the bending direction of the bending part 4a are the same in the first gripping form and the second gripping form. .
- the wrist can be stably gripped in a natural state, the lever operation and the switch operation with the thumb are easy, and the burden on the operator is reduced. Since there is no place where the insertion portion 4 extends and bends in the same horizontal direction as the insertion direction into the patient, the insertion portion 4 can be rotated by twisting the wrist, and the bending direction of the bending portion 4a can be easily changed. Moreover, since there is no location where the insertion portion 4 bends, the loss of the driving force transmission mechanism inside the insertion portion is reduced, and the torque followability and bending performance of the original insertion portion can be exhibited.
- the operation unit 1S of the present embodiment is arranged with the switches 11 and 12 in the recessed part 13 which is recessed from the surface of the rear housing part 3, so that the palm pressure of the thumb ball part of the palm is applied when grasped. Even if this is the case, the switch is not pressed down, and it is difficult for the device to malfunction. Moreover, in the 2nd holding
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Abstract
Description
図1は本発明の一実施形態に係る内視鏡装置を泌尿器科用の内視鏡システムに適用した例の全体の概略構成を示す図である。
さらに、内視鏡装置は、内視鏡本体1と、照明光を供給する光源装置101と、内視鏡が撮像した映像信号に対して画像処理を行なうカメラコントロールユニット(CCU)を含むビデオプロセッサ102と、ビデオプロセッサ106から出力される映像信号を表示するモニタ103とで構成される。内視鏡本体1とは、光源装置101のコネクタ端子104と、ビデオプロセッサ105のコネクタ端子109等がユニバーサルケーブル5により接続されている。さらに図示しないが、ビデオプロセッサ102に接続され、例えば映像信号を記録する画像記録装置及び、紙面等に画像を印刷するプリンタを搭載してもよい。
リアハウジング部3とフロント部2の繋ぎ箇所の下方には、把持時のスペースである指置きスペースを分離し、最適な把持位置の基準になるトリガー形状の指置き突起部8が一体的に形成されている。本実施形態のトリガー形状とは、突起する頂部に対してリアハウジング部3とフロント部2の両側面を略平坦な面が湾曲する円筒面の一部による凹曲面で形成する構造であり、凹曲面により、前後に指置きスペース9,10を生じさせている。また、指置きスペース9の一部は、円筒形状を成すフロント本体22に略平坦な面9Fとして形成されている。
フロント部2は、挿入部4側に向かう先細り形状で断面が円筒又は楕円に形成されている。本実施形態では、リアハウジング部3(第2把持部)に替わって、フロント部2を第1把持部として機能させるために、リアハウジング部3に近い外周径を有している。このフロント部2は、第1把持部となるフロント本体22と、回転機構(図9に示す)で回転可能な先端回転部21と、挿入部4の基端側を固定して挿入部4の折れ止め機能を有する先細り形状の先端部15と、で構成される。
図6A,6B、図7A,7B及び図8は、操作部1Sを第1把持形態で持つ例を示している。図9A,9Bは、操作部1Sを第2把持形態で持つ例を示している。
図9Aに示す第2把持形態は、図2に示す第1形態の先端回転部21を180°回転させて、鉗子ポート16をフロント部2の上側から下側に移動させる。この回転により、図5に示すように、鉗子ポート16がリアハウジング部3側に配置される。
これらの第2把持形態は、従来タイプ(挿入部が下方から延出するタイプ)の操作部を把持し、これまでの操作部と同じ操作で観察や手技を行うことができる。また、フロント部2は、従来の操作部のグリップ部に比べて、細径化されているため、手の小さい操作者に対しても把持しやすくなっている。また、フロント部2においても滑らかな段差18を設けているため、把持した際に指の掛かりがよくなり、手中で不用意なズレや回転が発生し難くなる。
この操作部は、鉗子ポートを回転させて位置を変更するだけで、2つの異なる把持形態を実現でき、リアハウジング部3を把持する第1把持形態では、挿入部が患者への挿入方向と略同じ水平方向に延出される。フロント部2を把持する第2把持形態では、挿入部が下方に延出される。
Claims (5)
- 先端側に、一軸方向に湾曲可能な湾曲部を備え、前記一軸方向と直交する第1の長手軸に延伸する長尺な挿入部と、
前記挿入部の基端側が固定され、処置具の挿入口となる開口部を備えた先端回転部と、
任意の角度範囲内で回動可能となるように前記先端回転部を一端側に接続する第1把持部と、
前記第1把持部の他端側に、前記第1の長手軸と所定の鈍角をなす第2の長手軸でL型に連結される第2把持部と、
前記第1把持部の他端側に設けられ、前記第1の長手軸と第2の長手軸が成す優角を二分する角度を初期位置として回動し、前記湾曲部を湾曲させる湾曲操作レバーと、
前記第2把持部の底端部から前記第2の長手軸と略平行な方向に延出されるユニバーサルケーブルと、を具備し、
前記第1把持部の非連結側を基準配置位置として、前記開口部が配置される第1形態と、前記先端回転部の回動により、前記第1把持部の前記基準配置位置の反対側の連結側に前記開口部が配置される第2形態とを有し、
前記第1形態の時に、前記第2把持部を把持し、前記挿入部を被検体への挿入方向と略同じ水平方向に延出させる第1把持形態と、前記第2形態の時に前記第1把持部を把持し、前記挿入部を下方向に延出させる第2把持形態とを有することを特徴とする内視鏡。 - 前記第1の長手軸と前記第2の長手軸が成す劣角側の前記第1把持部と前記第2把持部の連結箇所に、両側面が円筒面の一部による凹曲面で形成された頂部を有する突起部が設けられたことを特徴とする請求項1に記載の内視鏡。
- 前記第1把持部は、円筒形状を成し、前記第1の長手軸を中心に対向して、前記湾曲操作レバーよりも先端側の面及び、前記突起部よりも先端側で前記凹曲面に続く面に、対向する対の略平坦部が設けられたことを特徴とする請求項2に記載の内視鏡。
- 前記第2把持部は、把持時に掌圧が加わらない深さの窪み部を具備し、
前記窪み部内に、少なくとも1つのスイッチが配置されていることを特徴とする請求項1に記載の内視鏡。 - 前記基準配置位置は、前記一軸方向の一軸と前記第1の長手軸とがなす第1の平面と前記湾曲操作レバーの回動がなす第2の平面とが略平行をなすように、前記先端回転部と前記第1把持部とが配設された位置であることを特徴とする請求項1に記載の内視鏡。
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EP15810175.8A EP3158910A4 (en) | 2014-06-20 | 2015-06-12 | Endoscope device |
CN201580027097.8A CN106455921B (zh) | 2014-06-20 | 2015-06-12 | 内窥镜装置 |
US15/377,305 US10206559B2 (en) | 2014-06-20 | 2016-12-13 | Endoscope apparatus |
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