JPH08187222A - Lever for curving operation of endoscope - Google Patents

Lever for curving operation of endoscope

Info

Publication number
JPH08187222A
JPH08187222A JP7000762A JP76295A JPH08187222A JP H08187222 A JPH08187222 A JP H08187222A JP 7000762 A JP7000762 A JP 7000762A JP 76295 A JP76295 A JP 76295A JP H08187222 A JPH08187222 A JP H08187222A
Authority
JP
Japan
Prior art keywords
lever
bending operation
range
bending
operation lever
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.)
Granted
Application number
JP7000762A
Other languages
Japanese (ja)
Other versions
JP3069739B2 (en
Inventor
Yoichi Segawa
陽一 瀬川
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical Co Ltd
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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP7000762A priority Critical patent/JP3069739B2/en
Publication of JPH08187222A publication Critical patent/JPH08187222A/en
Application granted granted Critical
Publication of JP3069739B2 publication Critical patent/JP3069739B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

PURPOSE: To enable to hold a lever for curving operation at the terminal end position of a curving apparatus by small operational force, improving coherency of a finger in a lever for curving operation on whose finger placing face a nonslip face is formed, by making the curvature of a rear end portion smaller than the curvature of the central portion. CONSTITUTION: A lever 26 for curving operation provided in a hand operation portion of an endoscope is constituted from a lever body 30 where a shaft 28 is formed and an operating portion 32 where a thumb contacts. In this case, a range A for using a lever 26 when operating within a small angle, a range B including an edge portion 40 for using the lever 26 when holding at one terminal end position, and a range C including an edge portion 42 for using the lever 26 when holding at the other terminal end position are formed in the operating portion 32. By setting the curvatures of the ranges B, C smaller than that of the range A, a thumb 38 can easily touch an operating face of the ranges B, C. The space between protruding bar portions 52, 54 of finger placing faces respectively in the ranges B, C are made narrower than a convex portion 50 of a nonslip face of the range A, thereby improving the coherency with the thumb 38.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は内視鏡の湾曲操作レバー
に係り、特に内視鏡手元操作部を把持した手の親指で回
動操作されることにより湾曲操作用ワイヤを牽引し内視
鏡挿入部先端の湾曲部を所望の方向に湾曲させる内視鏡
の湾曲操作レバーに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bending operation lever of an endoscope, and more particularly, the bending operation wire is pulled by being rotated by the thumb of a hand holding the operation section of the endoscope. The present invention relates to a bending operation lever of an endoscope that bends a bending portion at the tip of a mirror insertion portion in a desired direction.

【0002】[0002]

【従来の技術】内視鏡の挿入部先端には湾曲部が形成さ
れ、この湾曲部は、手元操作部の湾曲操作レバーを回動
操作することにより湾曲されて所望の方向に向けられ
る。前記湾曲操作レバーのうち、手元操作部を把持した
手の親指で操作されるものは図7に示すように、湾曲操
作レバー1の指掛かり面2に多数の凸条部、及び凹条部
から成る滑り止め面3が形成され、回動操作時に親指面
が湾曲操作レバー1の指掛かり面2から滑らないように
なっている。
2. Description of the Related Art A bending portion is formed at a distal end of an insertion portion of an endoscope, and the bending portion is bent by turning a bending operation lever of a hand operation portion to be directed in a desired direction. As shown in FIG. 7, among the bending operation levers, the one operated by the thumb of the hand holding the hand operation portion has, as shown in FIG. The non-slip surface 3 is formed so that the thumb surface does not slip from the finger rest surface 2 of the bending operation lever 1 during the turning operation.

【0003】[0003]

【発明が解決しようとする課題】ところで、湾曲操作レ
バーには、湾曲部の復元力が湾曲操作用ワイヤを介して
伝達され、この復元力は湾曲部の湾曲角度が大きくなる
に従って大きくなり、そして湾曲角度最大時にピークと
なる。しかしながら、図7に示した従来の湾曲操作レバ
ー1では、湾曲部の復元力が最大となる位置、即ち湾曲
操作レバー1を図7中二点鎖線で示す湾曲角度最大位置
(湾曲操作の終端位置)に保持しようとすると、術者は
滑り止め面3を強い操作力で押さえ付けなければならな
いという欠点がある。
By the way, the restoring force of the bending portion is transmitted to the bending operation lever through the bending operation wire, and the restoring force increases as the bending angle of the bending portion increases, and It peaks at the maximum bending angle. However, in the conventional bending operation lever 1 shown in FIG. 7, a position where the restoring force of the bending portion is maximum, that is, the bending operation lever 1 is shown in a two-dot chain line in FIG. ), There is a drawback that the operator must press down the non-slip surface 3 with a strong operating force.

【0004】本発明はこのような事情に鑑みてなされた
もので、湾曲操作の終端位置に小さな操作力で保持する
ことができる内視鏡の湾曲操作レバーを提供することを
目的とする。
The present invention has been made in view of the above circumstances, and an object thereof is to provide a bending operation lever for an endoscope which can be held at the end position of the bending operation with a small operation force.

【0005】[0005]

【課題を解決するための手段】本発明は、前記目的を達
成するために、内視鏡手元操作部に回動自在に設けられ
ると共に、指掛かり面に凸条部と凹条部とが交互に形成
されて成る滑り止め面が形成され、回動操作されること
により内視鏡挿入部先端の湾曲部を所望の方向に湾曲さ
せる内視鏡の湾曲操作レバーに於いて、前記滑り止め面
の前端部、及び後端部の曲率を、滑り止め面の中央部の
曲率よりも小さくすると共に、前記滑り止め面の前端
部、及び後端部に形成される凸条部の間隔を、滑り止め
面の中央部に形成される凸条部の間隔よりも狭くしたこ
とを特徴としている。
In order to achieve the above-mentioned object, the present invention is rotatably provided on an endoscope hand operation portion, and has a convex portion and a concave portion alternately arranged on a finger-holding surface. In a bending operation lever of an endoscope, which is formed with a non-slip surface and is bent to bend a bending portion of a distal end of the endoscope in a desired direction by rotating the anti-slip surface, Of the front end and the rear end of the non-slip surface is smaller than the curvature of the central part of the non-slip surface, and the distance between the ridges formed on the front end and the rear end of the anti-slip surface is It is characterized in that it is made narrower than the interval between the ridges formed in the central portion of the stop surface.

【0006】[0006]

【作用】本発明によれば、湾曲操作の終端時に指と接触
される滑り止め面の前端部、及び後端部の曲率を、中央
部の曲率よりも小さくして、湾曲操作の終端時に指が滑
り止め面に密着し易いようにしている。また、本発明で
は、滑り止め面の前端部、及び後端部に形成された凸条
部の間隔を、中央部の凸条部の間隔よりも狭く形成し、
前端部と後端部に対する指の密着性を向上させている。
According to the present invention, the curvature of the front end portion and the rear end portion of the non-slip surface that comes into contact with the finger at the end of the bending operation is made smaller than the curvature of the central portion so that the finger at the end of the bending operation. Is designed to be easily attached to the non-slip surface. Further, in the present invention, the front end portion of the anti-slip surface, and the interval between the ridges formed on the rear end is formed to be narrower than the interval between the ridges at the center,
Improves finger adhesion to the front and rear edges.

【0007】これにより、本発明では、湾曲操作レバー
を湾曲操作の終端位置に小さな操作力で保持することが
できる。
As a result, in the present invention, the bending operation lever can be held at the end position of the bending operation with a small operation force.

【0008】[0008]

【実施例】以下添付図面に従って本発明に係る内視鏡の
湾曲操作レバーの好ましい実施例を詳述する。図1は、
本発明に係る内視鏡の湾曲操作レバーが適用された内視
鏡を示す全体図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a bending operation lever for an endoscope according to the present invention will be described in detail below with reference to the accompanying drawings. Figure 1
FIG. 1 is an overall view showing an endoscope to which a bending operation lever of an endoscope according to the present invention is applied.

【0009】同図に示すように内視鏡の手元操作部10
には軟性部12を介して挿入部14が接続され、挿入部
14の先端部には湾曲部16が接続されている。手元操
作部10の上端部には接眼部20が形成され、手元操作
部10の側面にはライドガイド22の一端部が接続され
ている。前記ライトガイド22の他端はコネクタ24に
よって図示しない照明装置に接続され、また、ライトガ
イド22は、手元操作部10から軟性部12、挿入部1
4、及び湾曲部16に挿通配置されて、前記照明装置か
らの光を先端部から患部等に照明する。
As shown in the figure, the hand-held operation section 10 of the endoscope
An insertion portion 14 is connected to the insertion portion 14 via the flexible portion 12, and a bending portion 16 is connected to the distal end portion of the insertion portion 14. An eyepiece 20 is formed on the upper end of the hand-side operation unit 10, and one end of a ride guide 22 is connected to the side surface of the hand-side operation unit 10. The other end of the light guide 22 is connected to a lighting device (not shown) by a connector 24, and the light guide 22 includes the hand operation part 10, the flexible part 12, and the insertion part 1.
4 and the curved portion 16 are inserted and arranged to illuminate the affected area or the like with light from the illumination device from the tip portion.

【0010】手元操作部10の側面には湾曲操作レバー
26が設けられる。この湾曲操作レバー26は、手元操
作部10に回動自在に支持されると共に、手元操作部1
0を把持した術者の左手の親指によって回動操作され
る。湾曲操作レバー26の軸28は、手元操作部10内
に配置された図示しないプーリに連結され、また、この
プーリには前記湾曲部16に接続された湾曲操作用ワイ
ヤが巻回されている。従って、湾曲操作レバー26を回
動操作すると、前記プーリが湾曲操作用ワイヤを押し引
き操作することにより、湾曲部16が所望の方向に湾曲
する。
A bending operation lever 26 is provided on the side surface of the hand operation unit 10. The bending operation lever 26 is rotatably supported by the hand operation unit 10, and at the same time, the hand operation unit 1
It is rotated by the thumb of the operator's left hand holding 0. The shaft 28 of the bending operation lever 26 is connected to a pulley (not shown) arranged in the hand operation part 10, and a bending operation wire connected to the bending part 16 is wound around the pulley. Therefore, when the bending operation lever 26 is rotated, the bending section 16 is bent in a desired direction by the pulley pushing and pulling the bending operation wire.

【0011】次に、湾曲操作レバー26について図2、
図3を参照しながら説明する。図2は湾曲操作レバー2
6の平面図であり、図3は湾曲操作レバー26の側面図
である。前記湾曲操作レバー26は、軸28が形成され
た板状のレバー本体30と、術者の親指が接触される操
作部32とから成り、このレバー本体30と操作部32
とは一体に形成されている。前記操作部32は図2に示
すようにレバー本体30上に形成された第1の操作部3
4と、第1の操作部34の図2中右側面上部から図中右
方向に突出形成された第2の操作部36とでL字状に形
成され、前記第2の操作部36は図1に示すように手元
操作部10から外側に突出した位置に配置される。
Next, regarding the bending operation lever 26, FIG.
This will be described with reference to FIG. FIG. 2 shows the bending operation lever 2.
6 is a plan view of FIG. 6, and FIG. 3 is a side view of the bending operation lever 26. The bending operation lever 26 includes a plate-shaped lever main body 30 having a shaft 28 formed thereon and an operation portion 32 with which the operator's thumb comes into contact. The lever main body 30 and the operation portion 32 are provided.
And are integrally formed. The operation part 32 is a first operation part 3 formed on the lever body 30 as shown in FIG.
4 and a second operating portion 36 that projects from the upper portion of the right side surface of the first operating portion 34 in FIG. 2 in the right direction in the figure, and is formed in an L-shape. As shown in FIG. 1, it is arranged at a position projecting outward from the hand operation unit 10.

【0012】前記第1の操作部34は図4に示すよう
に、湾曲操作レバー26を微小範囲の小さい角度で操作
する時に使用され、この時、術者の親指38は第1の操
作部34の略中央部に位置される。また、第1の操作部
34は図5に示すように、湾曲操作レバー26を図5中
時計回り方向の終端位置に保持させる時に使用され、こ
の時、術者の親指38は第1の操作部34の縁部40に
位置される。一方、前記第2の操作部36は図6に示す
ように、湾曲操作レバー26を図6中反時計回り方向の
終端位置に保持させる時に使用され、この時、術者の親
指38は第2の操作部36の縁部42に位置される。こ
のように、湾曲操作レバー26の湾曲操作角度に応じて
親指38の位置を変えることにより、手元操作部10を
確実にグリップした状態で湾曲操作レバー26を操作す
ることができる。
As shown in FIG. 4, the first operating portion 34 is used when operating the bending operating lever 26 at a small angle in a minute range. At this time, the surgeon's thumb 38 is held by the first operating portion 34. It is located approximately in the center. Further, as shown in FIG. 5, the first operating portion 34 is used when the bending operation lever 26 is held at the end position in the clockwise direction in FIG. 5, and at this time, the operator's thumb 38 is used for the first operation. Located at edge 40 of section 34. On the other hand, as shown in FIG. 6, the second operation portion 36 is used to hold the bending operation lever 26 at the end position in the counterclockwise direction in FIG. 6, and at this time, the operator's thumb 38 is moved to the second position. It is located at the edge portion 42 of the operating portion 36. As described above, by changing the position of the thumb 38 according to the bending operation angle of the bending operation lever 26, the bending operation lever 26 can be operated with the hand operation portion 10 securely gripped.

【0013】ところで、前記操作部32の指掛かり面は
図3に示すように略円弧状に形成される。前記指掛かり
面の中央部に位置する範囲Aは、湾曲操作レバー26を
小さい角度で操作する時に使用され、指掛かり面の範囲
Bは湾曲操作レバー26を図5中時計回り方向の終端位
置に保持させる時に使用され、指掛かり面の範囲Cは湾
曲操作レバー26を図6中反時計回り方向の終端位置に
保持させる時に使用される。
By the way, the finger-holding surface of the operating portion 32 is formed in a substantially arc shape as shown in FIG. The range A located at the center of the finger-holding surface is used when the bending operation lever 26 is operated at a small angle, and the range B of the finger-holding surface moves the bending operation lever 26 to the end position in the clockwise direction in FIG. The area C of the finger resting surface is used when the bending operation lever 26 is held at the end position in the counterclockwise direction in FIG.

【0014】前記範囲Aの指掛かり面の曲率中心は、湾
曲操作レバー26の回動中心O1 上にあり、前記範囲
B、Cの指掛かり面の曲率中心はレバー本体30と操作
部32との境界部O2 、O3 上にある。即ち、範囲B、
Cの曲率は、範囲Aの曲率よりも小さく設定され、湾曲
操作の終端時に親指38が範囲B、Cの指掛かり面に密
着し易くなっている。
The center of curvature of the finger-holding surface in the range A is on the rotation center O 1 of the bending operation lever 26, and the center of curvature of the finger-holding surface in the ranges B and C is the lever body 30 and the operating portion 32. On the boundaries O 2 and O 3 . That is, range B,
The curvature of C is set to be smaller than the curvature of range A, so that the thumb 38 can easily come into close contact with the finger resting surfaces of ranges B and C at the end of the bending operation.

【0015】前記滑り止め面には、凸条部と凹条部とが
交互に形成されて成る滑り止め面が形成される。これら
の凸条部と凹条部の形成方向は図2に示すように、湾曲
操作レバー26の回動方向に直交して形成される。前記
滑り止め面のうち、範囲Aの滑り止め面の凸条部50は
θ°の間隔に形成され、範囲Bの滑り止め面の凸条部5
2はγ°の間隔で、また、範囲Cの滑り止め面の凸条部
54は前記凸条部52と同様にγ°の間隔で形成されて
いる。前記θ°とγ°とはθ°>γ°であり、これによ
り範囲B、Cの凸条部52、54は範囲Aの凸条部50
よりも間隔が狭く形成されている。
On the non-slip surface, there is formed a non-slip surface in which convex strips and concave strips are alternately formed. As shown in FIG. 2, the direction of formation of these ridges and recesses is formed orthogonal to the direction of rotation of the bending operation lever 26. Of the non-slip surfaces, the ridges 50 of the non-slip surface in the range A are formed at intervals of θ °, and the ridges 5 of the non-slip surface in the range B are
2 is formed at intervals of γ °, and the ridges 54 of the non-slip surface in the range C are formed at intervals of γ °, like the ridges 52. The above-mentioned θ ° and γ ° are θ °> γ °, whereby the ridge portions 52 and 54 in the ranges B and C are the ridge portions 50 in the range A.
The interval is narrower than that.

【0016】次に、前記の如く構成された内視鏡の湾曲
操作レバーの作用について説明する。湾曲操作レバー2
6を微小範囲の小さい角度で操作する場合には湾曲部1
6の復元力は小さく、この場合には図4に示したよう
に、術者は親指38を第1の操作部34の中央部(範囲
A)に当てて操作する。この時、術者は、滑り止め面の
凸条部50によって親指38が滑ることなく湾曲操作レ
バー26を操作することができる。
Next, the operation of the bending operation lever of the endoscope constructed as described above will be described. Bending control lever 2
When operating 6 at a small angle in a minute range, the bending portion 1
The restoring force of 6 is small, and in this case, as shown in FIG. 4, the operator applies the thumb 38 to the central portion (range A) of the first operating portion 34 to operate. At this time, the operator can operate the bending operation lever 26 without the thumb 38 slipping due to the ridge portion 50 on the non-slip surface.

【0017】湾曲操作レバー26を図5に示したように
時計回り方向の終端位置に保持させる場合には湾曲部1
6の復元力が大きく、この場合には親指38を第1の操
作部34の縁部40(範囲B)に当てた状態で保持す
る。この時、親指38は、前記範囲Bの曲率が範囲Aの
曲率よりも小さく形成されているため前記縁部40に密
着し易く、また、この縁部40の滑り止め面の凸条部5
2が密に形成されているので縁部40に密着する。これ
により、術者は、小さな操作力で湾曲操作レバー26を
前記終端位置に保持させることができる。
When the bending operation lever 26 is held at the end position in the clockwise direction as shown in FIG. 5, the bending portion 1
The restoring force of 6 is large, and in this case, the thumb 38 is held in a state of being in contact with the edge portion 40 (range B) of the first operating portion 34. At this time, since the thumb 38 is formed so that the curvature of the range B is smaller than the curvature of the range A, the thumb 38 is easily attached to the edge portion 40, and the ridge portion 5 of the non-slip surface of the edge portion 40.
Since the two are densely formed, they closely contact the edge portion 40. This allows the operator to hold the bending operation lever 26 at the end position with a small operation force.

【0018】また、湾曲操作レバー26を図6に示した
ように反時計回り方向の終端位置に保持させる場合にも
湾曲部16の復元力が大きく、この場合には、親指38
を第2の操作部36の縁部42(範囲C)に当てた状態
で保持する。この時、親指38は、前記範囲Cの曲率が
範囲Aの曲率よりも小さく形成されているため前記縁部
42に密着し易く、また、この縁部42に形成された滑
り止め面の凸条部54が密に形成されているので縁部4
2に密着する。これにより、術者は、小さな操作力で湾
曲操作レバー26を前記終端位置に保持させることがで
きる。
Further, even when the bending operation lever 26 is held at the end position in the counterclockwise direction as shown in FIG. 6, the restoring force of the bending portion 16 is large, and in this case, the thumb 38 is used.
Is held in a state of being applied to the edge portion 42 (range C) of the second operation portion 36. At this time, since the thumb 38 is formed such that the curvature of the range C is smaller than the curvature of the range A, the thumb 38 is easily attached to the edge portion 42, and the ridge of the non-slip surface formed on the edge portion 42. Since the portion 54 is densely formed, the edge portion 4
Stick to 2. This allows the operator to hold the bending operation lever 26 at the end position with a small operation force.

【0019】従って、本実施例では、湾曲操作レバー2
6を湾曲操作の終端位置に小さな操作力で保持すること
ができる。本実施例では、操作部32をL字状に形成し
た湾曲操作レバー26について説明したが、これに限ら
れるものではなく、他の形状の操作部を有する湾曲操作
レバーについても適用することができる。
Therefore, in this embodiment, the bending operation lever 2 is used.
6 can be held at the end position of the bending operation with a small operation force. In the present embodiment, the bending operation lever 26 in which the operation portion 32 is formed in an L shape has been described, but the present invention is not limited to this and can be applied to a bending operation lever having an operation portion of another shape. .

【0020】[0020]

【発明の効果】以上説明したように本発明に係る内視鏡
の湾曲操作レバーによれば、滑り止め面の前端部、及び
後端部の曲率を、中央部の曲率よりも小さくすると共
に、滑り止め面の前端部、及び後端部に形成された凸条
部の間隔を、中央部の凸条部の間隔よりも狭く形成した
ので、湾曲操作レバーの回動終端位置でも小さな操作力
で保持することができる。
As described above, according to the bending operation lever of the endoscope of the present invention, the curvature of the front end portion and the rear end portion of the anti-slip surface is made smaller than the curvature of the central portion, and Since the interval between the ridges formed on the front and rear ends of the anti-slip surface is made narrower than the interval between the ridges in the center, a small operating force is required even at the turning end position of the bending operation lever. Can be held.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る内視鏡の湾曲操作レバーが適用さ
れた内視鏡の全体図
FIG. 1 is an overall view of an endoscope to which a bending operation lever of an endoscope according to the present invention is applied.

【図2】本発明に係る内視鏡の湾曲操作レバーの平面図FIG. 2 is a plan view of a bending operation lever of the endoscope according to the present invention.

【図3】図1に示した湾曲操作レバーの側面図FIG. 3 is a side view of the bending operation lever shown in FIG.

【図4】本発明に係る内視鏡の湾曲操作レバーの操作状
態を示す説明図
FIG. 4 is an explanatory view showing an operating state of a bending operation lever of the endoscope according to the present invention.

【図5】本発明に係る内視鏡の湾曲操作レバーの操作状
態を示す説明図
FIG. 5 is an explanatory view showing an operating state of a bending operation lever of the endoscope according to the present invention.

【図6】本発明に係る内視鏡の湾曲操作レバーの操作状
態を示す説明図
FIG. 6 is an explanatory view showing an operating state of a bending operation lever of the endoscope according to the present invention.

【図7】従来の内視鏡の湾曲操作レバーの側面図FIG. 7 is a side view of a bending operation lever of a conventional endoscope.

【符号の説明】[Explanation of symbols]

10…手元操作部 16…湾曲部 26…湾曲操作レバー 30…レバー本体 32…操作部 34…第1の操作部 36…第2の操作部 50、52、54…凸条部 10 ... Hand operation part 16 ... Bending part 26 ... Bending operation lever 30 ... Lever body 32 ... Operation part 34 ... First operation part 36 ... Second operation part 50, 52, 54 ... Ridge part

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】内視鏡手元操作部に回動自在に設けられる
と共に、指掛かり面に凸条部と凹条部とが交互に形成さ
れて成る滑り止め面が形成され、回動操作されることに
より内視鏡挿入部先端の湾曲部を所望の方向に湾曲させ
る内視鏡の湾曲操作レバーに於いて、 前記滑り止め面の前端部、及び後端部の曲率を、滑り止
め面の中央部の曲率よりも小さくすると共に、前記滑り
止め面の前端部、及び後端部に形成される凸条部の間隔
を、滑り止め面の中央部に形成される凸条部の間隔より
も狭くしたことを特徴とする内視鏡の湾曲操作レバー。
Claim: What is claimed is: 1. An endoscope hand-operated portion is rotatably provided, and a finger-holding surface is formed with an anti-slip surface formed by alternately forming convex ridges and concave ridges, and is rotatably operated. In the bending operation lever of the endoscope that bends the bending portion of the tip of the endoscope insertion portion in a desired direction by changing the curvature of the front end portion and the rear end portion of the slip prevention surface to the slip prevention surface of the slip prevention surface. The distance between the ridges formed at the front end and the rear end of the non-slip surface is made smaller than the curvature of the central part, and the interval between the ridges formed at the central part of the anti-slip surface is smaller than that. A bending operation lever for an endoscope characterized by being narrowed.
JP7000762A 1995-01-06 1995-01-06 Endoscope bending operation lever Expired - Fee Related JP3069739B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7000762A JP3069739B2 (en) 1995-01-06 1995-01-06 Endoscope bending operation lever

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7000762A JP3069739B2 (en) 1995-01-06 1995-01-06 Endoscope bending operation lever

Publications (2)

Publication Number Publication Date
JPH08187222A true JPH08187222A (en) 1996-07-23
JP3069739B2 JP3069739B2 (en) 2000-07-24

Family

ID=11482716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7000762A Expired - Fee Related JP3069739B2 (en) 1995-01-06 1995-01-06 Endoscope bending operation lever

Country Status (1)

Country Link
JP (1) JP3069739B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008044629A (en) * 2006-08-11 2008-02-28 Kirin Brewery Co Ltd Plastic cap, and product or container using the same
WO2012172953A1 (en) * 2011-06-14 2012-12-20 オリンパスメディカルシステムズ株式会社 Endoscope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008044629A (en) * 2006-08-11 2008-02-28 Kirin Brewery Co Ltd Plastic cap, and product or container using the same
WO2012172953A1 (en) * 2011-06-14 2012-12-20 オリンパスメディカルシステムズ株式会社 Endoscope
US8998800B2 (en) 2011-06-14 2015-04-07 Olympus Medical Systems Corp. Endoscope

Also Published As

Publication number Publication date
JP3069739B2 (en) 2000-07-24

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