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WO2017026177A1 - Mécanisme de traction de fil pour endoscope, et endoscope - Google Patents

Mécanisme de traction de fil pour endoscope, et endoscope Download PDF

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Publication number
WO2017026177A1
WO2017026177A1 PCT/JP2016/068759 JP2016068759W WO2017026177A1 WO 2017026177 A1 WO2017026177 A1 WO 2017026177A1 JP 2016068759 W JP2016068759 W JP 2016068759W WO 2017026177 A1 WO2017026177 A1 WO 2017026177A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
endoscope
pulling mechanism
driven gear
wire pulling
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2016/068759
Other languages
English (en)
Japanese (ja)
Inventor
尚彦 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Corp
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 Olympus Corp filed Critical Olympus Corp
Publication of WO2017026177A1 publication Critical patent/WO2017026177A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 an endoscope wire pulling mechanism and an endoscope for pulling or relaxing a pulling wire for bending a bending portion in conjunction with a tilting operation of a bending lever provided in an operation portion.
  • Japanese Patent Application Laid-Open No. 2012-245058 discloses a curved lever that can be tilted around a predetermined swing center, and a shaft that is fixed to a shaft end of the curved lever and orthogonal to the axial center of the curved lever.
  • An endoscope including a traction arm extending in a direction and a traction member (traction wire) fixed to each end of each traction arm is disclosed.
  • the operation portion 3 has an operation portion main body 20 having a substantially rectangular parallelepiped shape, and the proximal end side of the insertion portion 2 is prevented from being bent at one end surface in the longitudinal direction of the operation portion main body 20. It is connected via the part 10.
  • the operation unit main body 20 of the present embodiment also serves as a gripping unit.
  • a user or the like operates with one end side connected to the insertion unit 2 as the front side.
  • the body part 20 can be gripped along the longitudinal direction.
  • the second swing member 33 includes an arch-shaped portion 45 and a pair of left and right fixed to both ends of the arch-shaped portion 45 by screws or the like. 2 shaft portions 46, 46. Further, the arch-like portion 45 is provided with a slit 45a extending along the extending direction of the second axis O2, which is the axis of the second shaft portions 46, 46.
  • first pulling wires 15 a and 15 b extending from the insertion portion 2 are attached to the peripheral portion of the first pulley 35.
  • the first pulling wires 15a and 15b are pulled or relaxed by changing the winding state of the first pulley 35 according to the swinging state of the first pulley 35, and the bending portion 6 is moved in the left-right direction. It can be bent.
  • the second drive gear 55 is constituted by a spur gear, and is fixed on the second shaft portion 46 protruding to the left side of the second swing member 33.
  • the second driven gear 56 is constituted by a spur gear having a smaller diameter than the second drive gear 55, and is fixed on the second gear shaft 57 supported between the left and right wall portions 30 l and 30 r of the housing 30. It is installed.
  • the first and second swinging members 31 and 33 swinging integrally with the first and second shafts 42 and 46 are connected to the first and second swinging members 31 and 33.
  • the insertion portion 2 and the operation portion 3 can be connected at a position where they do not interfere with the user's hand, etc., and the operability with respect to the endoscope 1 can be realized by making the operation portion 3 easy to grasp. can do.
  • the bending lever 21 can be stably mounted on the desk or the like. Can also be operated.
  • the wire pulling mechanism 25 for bending the bending portion 6 in the vertical and horizontal directions has been described.
  • the wire pulling mechanism 25 for bending the bending portion 6 only in the left-right direction (or only in the vertical direction) can be configured. .
  • the other end side (base end side) of the bending lever 21 protrudes from the cylindrical member 32.
  • the arch-shaped portion 45 constituting the second swing member 33 is disposed so as to bypass the lower side of the first swing member 31 and cross the left and right. Further, the base end portion of the bending lever 21 is inserted into the slit 45 a of the arch-shaped portion 45.
  • the second pulley 37 is fixed on the second gear shaft 57 in the housing 30.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Optics & Photonics (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

Un mécanisme de traction de fil 25 est configuré de manière à être pourvu : d'un premier élément oscillant 31 pour faire osciller d'un seul tenant avec un levier de flexion 21 autour d'une première partie de tige 42 située sur un premier axe O1 passant à travers un centre d'inclinaison P du levier de flexion 21 ; d'un premier engrenage d'entraînement 51 pour faire osciller d'un seul tenant avec le premier élément oscillant 31, le premier engrenage d'entraînement 51 étant relié à la première partie de tige 42 ; d'un premier engrenage entraîné 52 pour s'engrener avec le premier engrenage d'entraînement 51 ; et d'une première poulie 35 pour faire osciller d'un seul tenant avec le premier engrenage entraîné 52, les côtés d'extrémité proximale des premiers fils de traction 15a, 15b, les côtés d'extrémité distale de ceux-ci étant reliés à une partie de flexion 6, étant fixée à une partie périphérique de la première poulie 35, et la première poulie 35 étant reliée à la première roue entraînée 52.
PCT/JP2016/068759 2015-08-11 2016-06-24 Mécanisme de traction de fil pour endoscope, et endoscope Ceased WO2017026177A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-158985 2015-08-11
JP2015158985 2015-08-11

Publications (1)

Publication Number Publication Date
WO2017026177A1 true WO2017026177A1 (fr) 2017-02-16

Family

ID=57984214

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/068759 Ceased WO2017026177A1 (fr) 2015-08-11 2016-06-24 Mécanisme de traction de fil pour endoscope, et endoscope

Country Status (1)

Country Link
WO (1) WO2017026177A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6219008B1 (ja) * 2016-04-25 2017-10-25 オリンパス株式会社 内視鏡
WO2017187748A1 (fr) * 2016-04-25 2017-11-02 オリンパス株式会社 Endoscope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865132A (ja) * 1981-10-15 1983-04-18 オリンパス光学工業株式会社 内視鏡
WO2015068468A1 (fr) * 2013-11-07 2015-05-14 オリンパスメディカルシステムズ株式会社 Endoscope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865132A (ja) * 1981-10-15 1983-04-18 オリンパス光学工業株式会社 内視鏡
WO2015068468A1 (fr) * 2013-11-07 2015-05-14 オリンパスメディカルシステムズ株式会社 Endoscope

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6219008B1 (ja) * 2016-04-25 2017-10-25 オリンパス株式会社 内視鏡
WO2017187748A1 (fr) * 2016-04-25 2017-11-02 オリンパス株式会社 Endoscope

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