WO2021250945A1 - 内視鏡用先端保護具 - Google Patents

内視鏡用先端保護具 Download PDF

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Publication number
WO2021250945A1
WO2021250945A1 PCT/JP2021/005337 JP2021005337W WO2021250945A1 WO 2021250945 A1 WO2021250945 A1 WO 2021250945A1 JP 2021005337 W JP2021005337 W JP 2021005337W WO 2021250945 A1 WO2021250945 A1 WO 2021250945A1
Authority
WO
WIPO (PCT)
Prior art keywords
main body
notch
tip protector
tip
endoscope according
Prior art date
Application number
PCT/JP2021/005337
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
宙 澁谷
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 JP2022530025A priority Critical patent/JP7480294B2/ja
Priority to CN202180040828.8A priority patent/CN115697174A/zh
Publication of WO2021250945A1 publication Critical patent/WO2021250945A1/ja

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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
    • 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 a tip protector for an endoscope that is attached to the tip of an endoscope insertion portion and is used.
  • Endoscopes are widely known in the medical field.
  • the endoscope inserts an insertion portion (endoscope insertion portion) into the body of the subject to perform imaging inside the body.
  • an insertion portion endoscope insertion portion
  • the tip of the insertion part may come into contact with the floor, wall, etc. and be damaged during preparation for use, storage, maintenance, and the like.
  • measures such as attaching a protective device (tip protector for endoscopes) to the tip of the insertion portion are taken except when in use.
  • a protective device for example, the following Patent Document 1 is known.
  • Patent Document 1 has a problem that the shape is complicated and it takes time and effort to manufacture.
  • the width of the center of the notch may be widened.
  • the width of the center of the notch may be widened by providing an arc-shaped notch on the pressing portion side.
  • At least two openings may be formed and arranged on one end side and the other end side of the notch with the center of the notch interposed therebetween.
  • the main body may be formed by using a material having light transmission.
  • the frictional resistance of the notch may be higher than the inner and outer circumferences of the main body.
  • a small diameter portion with a smaller inner diameter of the main body may be provided on one end side of the main body.
  • the main body may be antistatic treated.
  • the inner peripheral surface and / or the outer peripheral surface of the main body 16 may be coated to improve slidability. Further, the inner peripheral surface and / or the outer peripheral surface of the main body 16 may be coated to reduce the dust collecting property.
  • the coating that improves the slidability and / or reduces the dust collection property include a fluorine diameter coating and a parylene coating.
  • the slidability may be improved and / or the dust collection property may be lowered by embossing (forming fine irregularities) on the inner peripheral surface and / or the outer peripheral surface of the main body 16. Of course, both coating and graining may be applied.
  • a slit-shaped notch 20 is formed between one end and the other end of the main body 16.
  • the notch 20 is formed long in a direction perpendicular to the axial direction of the main body 16, and the main body 16 is divided into a storage portion 22 on one end side and a pressing portion 24 on the other end side by the notch 20.
  • the notch 20 functions as an opening for inserting the tip 14 into the main body 16 (inside the storage portion 22) when the protective tool 10 is attached to the endoscope insertion portion 12 (see FIG. 3).
  • the tip 14 inserted into the main body 16 is stored in the storage unit 22 (see FIG. 4).
  • the notch 20 not only the notch 20 but also the peripheral portion of the notch 20 has a portion that abuts on the outer periphery of the endoscope insertion portion 12, for example, the pressing portion 24 side (notch 20 side) of the inner circumference of the storage portion 22. ) Comes into contact with the outer periphery of the endoscope insertion portion 12 (see FIG. 4). Therefore, in such a portion, for example, in a certain range from the pressing portion 24 (notch 20) in the inner circumference of the accommodating portion 22, the frictional resistance may be increased without performing the friction reducing treatment.
  • the range in which the friction reduction treatment is not applied can be freely set, but by not performing the friction reduction treatment, the frictional resistance is increased and the dropout prevention effect is enhanced, but the slidability is reduced and the endoscope insertion portion is inserted.
  • the wearability to 12 is deteriorated. Therefore, the range in which the friction reduction treatment is not applied is preferably a range in which the distance from the pressing portion 24 (notch 20) is within 20 mm, and more preferably the distance from the pressing portion 24 (notch 20) is within 10 mm. It is a range.
  • the main body 16 is bent at the notch 20 portion, and the opening area of the notch 20 is expanded by using fingers or the like. A force is applied to elastically deform the main body 16. Then, the tip 14 of the endoscope insertion portion 12 is inserted into the storage portion 22 from the notch 20. After that, the fingers and the like are released to open the main body 16.
  • the main body 16 is restored by the restoring force from the elastic deformation, and the pressing portion 24 is inside with this restoration.
  • the side wall of the endoscope insertion portion 12 is pressed against the inner wall of the storage portion 22. As a result, the protective tool 10 is locked and attached to the endoscope insertion portion 12.
  • the main body 16 may be bent and the endoscope insertion portion 12 may be pulled out from the protective tool 10.
  • the width of the center of the notch 20 in the longitudinal direction is widened. By doing so, it becomes easy to insert the endoscope insertion portion 12 into the storage portion 22. Further, when the endoscope is attached to the endoscope insertion portion 12, the adhesion with the side wall of the endoscope insertion portion 12 is enhanced, and it is possible to prevent the endoscope from falling off.
  • the width of the central portion of the notch 20 is widened by providing an arc-shaped notch 26, more specifically, an arc-shaped notch 26 having an arc shape of about 1/3 of the entire circumference of the main body 16.
  • the outer diameter of the endoscope insertion portion 12 is about 5 mm in the case of a transnasal endoscope.
  • the inner diameter ID of the protective device 10 (main body 16) is about 5 mm from the outer diameter of the endoscope insertion portion 12, although it is different from about 10 mm in the case of an oral endoscope and about 13 mm in the case of a lower endoscope. A large diameter is preferable.
  • the thickness T of the side wall of the protective tool 10 (main body 16) is preferably about 2 mm to 3 mm.
  • the protective tool 10 of the present invention can secure the opening area required for inserting the endoscope insertion portion 12 only by bending the main body 16, so that the endoscope insertion portion 12 and / or the tip 14 is damaged. It can be attached and detached without any. That is, for example, in the configuration in which the holding portion is sandwiched between fingers to create an opening as in Patent Document 1 described above, when the opening is insufficient, the outer diameter of the endoscope insertion portion 12 and protection are particularly provided. If the difference from the inner diameter ID of the tool 10 is small, the holding portion may damage the tip 14 or the endoscope insertion portion 12, but the protective tool 10 of the present invention prevents such a problem. However, it can be easily attached and detached without damaging the endoscope insertion portion 12 and / or the tip 14.
  • the center C1 of the inner circumference of the main body 16 is eccentric to the side opposite to the notch 20 from the center C2 of the outer circumference, and the thickness of the side wall opposite to the notch 20 is set. , It is thinner than the thickness of the side wall on the notch 20 side.
  • the eccentricity D (distance from the center C2 on the outer circumference of the main body 16) D of the center C1 of the inner circumference of the main body 16 can be appropriately set, but the eccentricity D is the thickness of the side wall of the main body 16 (thickness of the side wall of the main body 16). It is preferably about half of (the average value of), specifically, about 1 mm to 1.5 mm.
  • the center C1 on the inner circumference of the main body 16 is eccentric to the side opposite to the notch 20 from the center C2 on the outer circumference.
  • the center C1 of the inner circumference may be eccentric to the notch 20 side of the center C2 of the outer circumference.
  • the flexibility of the protective device 50 is reduced (it becomes difficult to bend the protective device 50), but the restoring force of the protective device 50 from the bent state is improved, so that when the protective device 50 is attached to the endoscope insertion portion 12.
  • the endoscope insertion portion 12 can be held more firmly (retention is improved).
  • the portion that thickens (or thins) the side wall examples include the periphery of the notch 20, the periphery of the portion opposite to the notch 20, and the like. Further, the side wall may be thickened (or thinned) only around both ends 20A of the notch 20. Of course, the side wall may be thickened (or thinned) over the entire circumference including the periphery of the notch 20, the periphery of the portion opposite to the notch 20, and the periphery of both ends 20A of the notch 20.
  • an opening 102 is formed in the pressing portion 24.
  • the opening 102 is formed in the shape of an elongated hole long in the axial direction of the main body 16 and sandwiches the center of the notch 20 (a line segment passing through the center of the notch 20 and parallel to the central axis of the main body 16) of the notch 20.
  • a pair (two) are provided at positions opposite to each other on one end side and the other end side.
  • one notch 20 is provided, whereas in the protective device of the fourth embodiment, a plurality of notches 20 are provided.
  • the protective tool 150 shown in FIG. 8 is provided with notches 20 at one end and the other end of the main body 16, respectively. By doing so, the protective tool 150 can be attached to the endoscope insertion portion 12 from either side of one end portion and the other end portion, which is convenient. Further, even if one notch 20 becomes unusable due to breakage or the like, another notch 20 can be used, so that the number of times that the protective tool 150 can be used can be increased.
  • the direction of the notch 20 may be different as in the protective device 200 shown in FIG.
  • the notch 20 is provided at one end and the other end of the main body 16, and the direction of the notch 20 is different between the one end and the other end of the main body 16 by 180 °.
  • a plurality of notches 20 may be provided side by side. In the example of FIG. 10, three notches 20 in the same direction are provided at one end of the main body 16.
  • the position, number, and orientation of the notches 20 are not limited to the above and can be freely set.
  • the protective tool 300 of the fifth embodiment is provided with a preliminary notch 310 used when the notch 20 becomes unusable, in addition to the notch 20 described in the above embodiment.
  • the preliminary notch 310 includes a pair of end openings 310A corresponding to both end portions 20A of the notch 20 and a fractured portion 310B connecting the end openings 310A to each other.
  • the fractured portion 310B is formed by making the thickness of the side wall of the main body 16 thinner than that of other portions.
  • the preliminary notch 310 functions as the notch 20 by breaking the fractured portion 310B with, for example, scissors.
  • the preliminary notch 310 can function as the notch 20, so that the number of times the protective device 300 can be used can be increased. Further, since the protective tool 300 is provided with a notch 20 on the side near the end of the main body 16 and a preliminary notch 310 on the side far from the end of the main body 16, the notch 20 near the end is used first. By cutting the main body 16 at the notch 20 portion when the notch 20 becomes unusable, it is possible to prevent problems such as the unusable portion becoming an obstacle.
  • the broken portion 310B has been described by making the thickness of the side wall of the main body 16 thinner than that of other portions, but the present invention is not limited thereto.
  • the fractured portion 310B may have a structure that facilitates fracture when the preliminary notch 310 is used as the notch 20, and may be, for example, a plurality of openings arranged in a perforated pattern.
  • the protective tool 350 of the sixth embodiment is provided with a small diameter portion 352 having a smaller inner diameter and outer diameter of the main body 16 on one end side (the side opposite to the pressing portion 24) of the main body 16.
  • the inner diameter of the small diameter portion 352 is preferably smaller than the outer diameter of the endoscope insertion portion 12 to be protected by about 2 mm. For example, it is preferably about 3 mm for a nasal endoscope, about 8 mm for an oral endoscope, and about 11 mm for a lower endoscope.
  • the inner diameter of the small diameter portion is larger than 0.
  • the connection between the small diameter portion and the portion other than the small diameter portion must be gentle (in the mode of connection in which the inclination of the tangent line changes sharply with the boundary between the small diameter portion and the portion other than the small diameter portion as Sakai. If there is), the detergency will be reduced. Therefore, it is preferable that the small-diameter portion and the portion other than the small-diameter portion are gently connected (a connection mode in which the inclination of the tangent line gradually changes from the small-diameter portion to the portion other than the small-diameter portion). By doing so, the inner and outer surfaces of the main body 16 become smooth, and the detergency is improved.
  • a portion other than the small diameter portion for example, the front end and / or the rear end of the main body 16, the notch 20, and the other portion may be gently connected to improve the cleaning property.
  • the protective tool 600 of the seventh embodiment has a main body rather than other parts by reducing the thickness of the side wall of the protective tool 600 on one end side (the side opposite to the pressing portion 24) of the main body 16.
  • a strength reducing portion 602 in which the strength of 16 is reduced is provided. In this way, by providing the strength reduction portion 602, when the endoscope equipped with the protective device 600 is dropped, the strength reduction portion 602 is deformed and the tip of the endoscope insertion portion 12 is provided. Since the 14 can be prevented from penetrating the protective tool 600, the tip 14 of the endoscope insertion portion 12 can be more reliably protected.
  • the storage portion 22 is formed in a shape curved along the storage direction when the tip 14 of the endoscope insertion portion 12 is stored in the protective tool 700. There is. By bending the storage portion 22 in this way, the tip 14 of the endoscope insertion portion 12 penetrates the protective tool 700 when the endoscope to which the protective tool 700 is attached is dropped. Since it can be blocked, the tip 14 of the endoscope insertion portion 12 can be more reliably protected.
  • the storage portion 22 is curved to the side opposite to the notch 20, but the bending direction can be changed as appropriate.
  • the protective tool 750 of the ninth embodiment is provided with an index 752 in the storage portion 22 indicating a guideline for the arrival position of the tip 14 of the endoscope insertion portion 12.
  • the index 752 is composed of prints and / or irregularities provided on the inner and / or outer circumferences of the storage portion 22. By providing the index 752 in this way, it is easy to grasp how much the tip 14 of the endoscope insertion portion 12 should be inserted into the protective tool 750, which is convenient.
  • the arrival position is indicated by the line-shaped index 752, but the arrival position may be indicated by a mark such as an arrow, an illustration, a message using text, or the like.
  • the present invention is not limited to this.
  • the longitudinal direction of the notch may be tilted in a direction other than vertical with respect to the axial direction of the protective device.
  • the main body 16 is subjected to antistatic treatment from the viewpoint of preventing adhesion of dust and the like and preventing damage of electronic parts such as a camera due to electric discharge.
  • antistatic treatment include treatments such as mixing an antistatic agent with the material forming the protective equipment and / or applying an antistatic treatment to the surface of the protective equipment.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Optics & Photonics (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Endoscopes (AREA)
PCT/JP2021/005337 2020-06-08 2021-02-12 内視鏡用先端保護具 WO2021250945A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2022530025A JP7480294B2 (ja) 2020-06-08 2021-02-12 内視鏡用先端保護具
CN202180040828.8A CN115697174A (zh) 2020-06-08 2021-02-12 内窥镜用前端保护工具

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2020-099546 2020-06-08
JP2020099546 2020-06-08
JP2020144113 2020-08-28
JP2020-144113 2020-08-28

Publications (1)

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WO2021250945A1 true WO2021250945A1 (ja) 2021-12-16

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PCT/JP2021/005337 WO2021250945A1 (ja) 2020-06-08 2021-02-12 内視鏡用先端保護具

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JP (1) JP7480294B2 (zh)
CN (1) CN115697174A (zh)
WO (1) WO2021250945A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003245244A (ja) * 2002-02-25 2003-09-02 Olympus Optical Co Ltd 先端フード部材
US6663592B2 (en) * 2001-09-06 2003-12-16 Medex, Inc. Catheter introducer assembly having safety shielded needle
JP2014124226A (ja) * 2012-12-25 2014-07-07 Sumitomo Bakelite Co Ltd 内視鏡用フードおよびフード付き内視鏡
JP2014201023A (ja) * 2013-04-08 2014-10-27 株式会社リブドゥコーポレーション 伸縮シート
US20200011393A1 (en) * 2018-07-05 2020-01-09 The Boeing Company Elastomeric compression spring with load tuning feature and associated method of tuning

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6663592B2 (en) * 2001-09-06 2003-12-16 Medex, Inc. Catheter introducer assembly having safety shielded needle
JP2003245244A (ja) * 2002-02-25 2003-09-02 Olympus Optical Co Ltd 先端フード部材
JP2014124226A (ja) * 2012-12-25 2014-07-07 Sumitomo Bakelite Co Ltd 内視鏡用フードおよびフード付き内視鏡
JP2014201023A (ja) * 2013-04-08 2014-10-27 株式会社リブドゥコーポレーション 伸縮シート
US20200011393A1 (en) * 2018-07-05 2020-01-09 The Boeing Company Elastomeric compression spring with load tuning feature and associated method of tuning

Also Published As

Publication number Publication date
JP7480294B2 (ja) 2024-05-09
JPWO2021250945A1 (zh) 2021-12-16
CN115697174A (zh) 2023-02-03

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