JP5186246B2 - Operation unit of disposable treatment instrument for endoscope - Google Patents

Operation unit of disposable treatment instrument for endoscope Download PDF

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JP5186246B2
JP5186246B2 JP2008051820A JP2008051820A JP5186246B2 JP 5186246 B2 JP5186246 B2 JP 5186246B2 JP 2008051820 A JP2008051820 A JP 2008051820A JP 2008051820 A JP2008051820 A JP 2008051820A JP 5186246 B2 JP5186246 B2 JP 5186246B2
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wire
slit
slide operation
hole
attachment member
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JP2009207591A (en
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憲幸 杉田
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Hoya Corp
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Description

この発明は、内視鏡の処置具挿通チャンネルに通して使用される内視鏡用ディスポーザブル処置具の操作部に関する。   The present invention relates to an operation unit of an endoscope disposable treatment instrument used through a treatment instrument insertion channel of an endoscope.

内視鏡用処置具として、操作ワイヤが軸線方向に可動に挿通配置されたシース部と、その操作ワイヤを進退操作するためのスライド操作部材が配置された操作部とを備え、そのようなシース部と操作部とを一まとめに使い捨て式にしたディスポーザブル処置具がある。   As a treatment instrument for an endoscope, a sheath portion in which an operation wire is movably inserted and arranged in the axial direction and an operation portion in which a slide operation member for advancing and retracting the operation wire is arranged are provided. There is a disposable treatment tool in which the operation part and the operation part are made into a single-use type.

ただし、部品の共通化によるコストダウンを図るため、操作ワイヤの必要最大ストロークが相違する複数機種に同じ操作部を使用して出荷する場合には、操作ワイヤの必要最大ストロークの相違に対応してスライド操作部材の最大可動距離を設定しておく必要がある。   However, in order to reduce costs by standardizing parts, when shipping using the same operation unit for multiple models with different required maximum strokes of the operation wire, it is necessary to respond to differences in the required maximum stroke of the operation wire. It is necessary to set the maximum movable distance of the slide operation member.

最大可動距離が不足すると処置具の機能が発揮できず、最大可動距離が過多の場合は、シース部の先端から処置部材が飛び出しすぎて、処置部材やシース部等が破損したり座屈したりする恐れがある。   If the maximum movable distance is insufficient, the function of the treatment tool cannot be exerted. If the maximum movable distance is excessive, the treatment member jumps out from the distal end of the sheath part, and the treatment member or the sheath part is damaged or buckled. There is a fear.

そこで従来は、操作部本体に設けられた可撓性チューブ製のストッパを適宜の長さに切断することにより、スライド操作部材の最大可動距離を任意に設定することができるようにしていた（例えば、特許文献１）。
特開２０００−１２６１８９ Therefore, conventionally, the maximum movable distance of the slide operation member can be arbitrarily set by cutting a stopper made of a flexible tube provided in the operation unit main body into an appropriate length (for example, Patent Document 1).
JP 2000-126189 A

しかし、可撓性チューブ製のストッパは、使用中に想定以上の強い力で押されると潰れてしまって操作ワイヤのストロークが過大になったり操作不良になる恐れがある。また、ストッパを誤って所定より短く切断してしまうと操作部全体が使い物にならなくなってしまう場合がある。   However, if the stopper made of a flexible tube is pressed with a stronger force than expected during use, the stopper may be crushed, resulting in an excessive stroke of the operation wire or poor operation. Further, if the stopper is accidentally cut shorter than a predetermined length, the entire operation unit may not be usable.

本発明は、操作ワイヤの必要最大ストロークが相違する複数機種に同じ操作部を使用する場合に、その各々に適合した最大ストロークになるように容易にセッティングして、良好な状態で使用することができる内視鏡用ディスポーザブル処置具の操作部を提供することを目的とする。   When using the same operation unit for multiple models with different required maximum strokes of the operation wire, the present invention can be easily set to the maximum stroke suitable for each and used in good condition. An object of the present invention is to provide an operation unit for a disposable treatment instrument for an endoscope.

上記の目的を達成するため、本発明の内視鏡用ディスポーザブル処置具の操作部は、操作部本体に前後方向に細長く形成されたスリット内において操作ワイヤの基端が連結されたワイヤ取付部材に、スリット外に突出した形状のスライド操作部材が取り付けられ、ワイヤ取付部材をスライド操作部材でスリットの長手方向に沿って移動させることにより、操作ワイヤが軸線方向に進退操作されるように構成された内視鏡用ディスポーザブル処置具の操作部において、ワイヤ取付部材に対するスライド操作部材の取り付け位置を、スリットの長手方向において相違する複数箇所の中から任意に選択することができる取付位置選択手段を設けて、ワイヤ取付部材に対するスライド操作部材の取り付け位置を選択することによりスリット内におけるワイヤ取付部材の最大可動距離を設定することができるようにすると共に、ワイヤ取付部材に対するスライド操作部材の取り付け位置が選択された状態でワイヤ取付部材に対するスライド操作部材の取り付け位置を固定する固定手段を設けたものである。   In order to achieve the above object, the operation part of the disposable treatment instrument for endoscope according to the present invention is a wire mounting member in which the base end of the operation wire is connected in a slit formed in the operation part body in the longitudinal direction. The slide operation member projecting out of the slit is attached, and the operation wire is moved back and forth in the axial direction by moving the wire attachment member along the longitudinal direction of the slit with the slide operation member. In the operation portion of the disposable treatment instrument for endoscope, there is provided an attachment position selection means capable of arbitrarily selecting the attachment position of the slide operation member with respect to the wire attachment member from a plurality of places different in the longitudinal direction of the slit. In the slit by selecting the mounting position of the slide operation member relative to the wire mounting member A fixing means for setting the maximum movable distance of the ear attachment member and fixing the attachment position of the slide operation member to the wire attachment member in a state where the attachment position of the slide operation member to the wire attachment member is selected. It is provided.

なお、スライド操作部材とワイヤ取付部材の一方には、スリット内に緩く嵌め込まれてスリットの長手方向に沿って複数の孔が形成された内挿部が備えられて、他方には内挿部と操作部本体とに緩く被嵌されて複数の孔の一つに重なり合う位置に透孔が形成された筒状部が備えられると共に、透孔と孔とにまたがって係合する連結ピンが設けられて、これらにより取付位置選択手段が形成されていてもよい。   One of the slide operation member and the wire attachment member is provided with an insertion portion loosely fitted in the slit and formed with a plurality of holes along the longitudinal direction of the slit, and the other includes an insertion portion and A cylindrical portion is provided that is loosely fitted to the operation portion main body and has a through-hole formed at a position overlapping one of the plurality of holes, and a connecting pin that engages the through-hole and the hole is provided. Thus, the attachment position selection means may be formed by these.

或いは、ワイヤ取付部材とスライド操作部材の一方には、操作部本体に緩く被嵌されてスリットの長手方向に沿って複数の透孔が形成された筒状部が備えられて、他方には筒状部の内側に位置するようにスリット内に緩く嵌め込まれて複数の透孔の一つと重なる位置に孔が形成された内挿部が備えられると共に、透孔と孔とにまたがって係合する連結ピンが設けられて、これらにより取付位置選択手段が形成されていてもよい。   Alternatively, one of the wire attachment member and the slide operation member is provided with a cylindrical portion that is loosely fitted to the operation portion main body and has a plurality of through holes formed along the longitudinal direction of the slit, and the other is a cylinder. An insertion portion is provided which is loosely fitted into the slit so as to be located inside the slit and has a hole formed at a position overlapping with one of the plurality of through holes, and is engaged across the through hole and the hole. A connection pin may be provided, and the attachment position selection means may be formed by these.

また、固定手段が、連結ピンを透孔と孔とにまたがって係合した状態で固定するものであってもよく、その固定手段が接着剤であってもよい。   Further, the fixing means may fix the connecting pin in a state of being engaged across the through hole and the hole, and the fixing means may be an adhesive.

本発明によれば、ワイヤ取付部材に対するスライド操作部材の取り付け位置を複数箇所の中から任意に選択してスリット内におけるワイヤ取付部材の最大可動距離を設定・固定することができるので、操作ワイヤの必要最大ストロークが相違する複数機種に同じ操作部を使用する場合に、その各々に適合した最大ストロークになるように容易にセッティングして、良好な状態で使用することができる。   According to the present invention, it is possible to set and fix the maximum movable distance of the wire attachment member in the slit by arbitrarily selecting the attachment position of the slide operation member with respect to the wire attachment member from among a plurality of locations. When the same operation unit is used for a plurality of models having different required maximum strokes, it can be easily set to have a maximum stroke suitable for each and used in a good condition.

操作部本体に前後方向に細長く形成されたスリット内において操作ワイヤの基端が連結されたワイヤ取付部材に、スリット外に突出した形状のスライド操作部材が取り付けられ、ワイヤ取付部材をスライド操作部材でスリットの長手方向に沿って移動させることにより、操作ワイヤが軸線方向に進退操作されるように構成された内視鏡用ディスポーザブル処置具の操作部において、ワイヤ取付部材に対するスライド操作部材の取り付け位置を、スリットの長手方向において相違する複数箇所の中から任意に選択することができる取付位置選択手段を設けて、ワイヤ取付部材に対するスライド操作部材の取り付け位置を選択することによりスリット内におけるワイヤ取付部材の最大可動距離を設定することができるようにすると共に、ワイヤ取付部材に対するスライド操作部材の取り付け位置が選択された状態でワイヤ取付部材に対するスライド操作部材の取り付け位置を固定する固定手段を設ける。   A slide operation member that protrudes out of the slit is attached to a wire attachment member that is connected to the base end of the operation wire in a slit that is elongated in the front-rear direction on the operation unit body. By moving the operation wire along the longitudinal direction of the slit, the position of the slide operation member attached to the wire attachment member in the operation portion of the disposable treatment instrument for an endoscope configured so that the operation wire is advanced and retracted in the axial direction. An attachment position selection means that can be arbitrarily selected from a plurality of different locations in the longitudinal direction of the slit is provided, and the position of the wire attachment member in the slit is selected by selecting the attachment position of the slide operation member with respect to the wire attachment member. The maximum movable distance can be set and the wire Providing a fixing means for fixing the mounting position of the slide operation member in a state where the mounting position of the slide operation member against member is selected for the wire attachment member.

以下、図面を参照して本発明の実施例を説明する。
図１は内視鏡用ディスポーザブル処置具の操作部の側面断面図、図２はその分解斜視図である。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a side sectional view of an operation unit of a disposable treatment instrument for endoscope, and FIG. 2 is an exploded perspective view thereof.

図示されていない内視鏡の処置具挿通チャンネルに挿脱される可撓性シース１の基端口金２が連結された操作部本体１１は、前後方向に細長い棒状に形成されて、中心軸線位置を通る前後方向に細長いスリット１２により、前後両端付近の領域を除いて左右に分断された形状に形成されている。操作部本体１１の後端部には、操作者の手の第１指を係合させるための固定指掛け１３が設けられている。   An operation portion main body 11 to which a base end cap 2 of a flexible sheath 1 to be inserted into and removed from a treatment instrument insertion channel of an endoscope (not shown) is connected is formed in a bar shape elongated in the front-rear direction, and is positioned at the central axis position. Is formed in a shape divided into right and left except for a region in the vicinity of both front and rear ends. A fixed finger hook 13 for engaging the first finger of the operator's hand is provided at the rear end of the operation unit main body 11.

可撓性シース１内に軸線方向に進退自在に全長にわたって挿通配置された操作ワイヤ３の基端部分は、可撓性シース１の基端から操作部本体１１のスリット１２内に引き出されていて、操作ワイヤ３の基端に固着された連結棒４が、スリット１２内でワイヤ取付部材１６に連結されている。   The proximal end portion of the operation wire 3 inserted through the entire length of the flexible sheath 1 so as to be movable back and forth in the axial direction is drawn from the proximal end of the flexible sheath 1 into the slit 12 of the operation portion main body 11. The connecting rod 4 fixed to the proximal end of the operation wire 3 is connected to the wire attachment member 16 in the slit 12.

２２は、図示されていない高周波電源コードを接続するための接続端子であり、連結棒４が接続端子２２の導電ロッドの先端でワイヤ取付部材１６に押圧固定されている。その結果、接続端子２２から操作ワイヤ３に高周波電流を通電することができる。   Reference numeral 22 denotes a connection terminal for connecting a high-frequency power cord (not shown), and the connecting rod 4 is pressed and fixed to the wire attachment member 16 at the tip of the conductive rod of the connection terminal 22. As a result, a high frequency current can be passed from the connection terminal 22 to the operation wire 3.

ワイヤ取付部材１６には、操作部本体１１に軸線方向に進退自在に緩く被嵌された筒状部１６ａが一体に備えられている。ただし、この実施例では、部品製造の容易性から独立して単体で形成された筒状部１６ａがワイヤ取付部材１６にビス止め固定されてそれらが一体化されている。   The wire attachment member 16 is integrally provided with a cylindrical portion 16a that is loosely fitted to the operation portion main body 11 so as to be movable back and forth in the axial direction. However, in this embodiment, the cylindrical portion 16a formed as a single unit independently from the ease of manufacturing the parts is screwed and fixed to the wire mounting member 16 so as to be integrated.

ワイヤ取付部材１６には、スリット１２外に突出した形状のスライド操作部材２４が取り付けられている。スライド操作部材２４には、操作者の第２指と第３指を係合させるための二つのリングが形成されており、ワイヤ取付部材１６をスライド操作部材２４で操作部本体１１の長手方向（即ち、スリット１２の長手方向）に沿って移動させることにより、操作ワイヤ３が軸線方向に進退操作される。   A slide operation member 24 having a shape protruding out of the slit 12 is attached to the wire attachment member 16. The slide operation member 24 is formed with two rings for engaging the operator's second finger and third finger, and the wire attachment member 16 is moved by the slide operation member 24 in the longitudinal direction ( That is, the operation wire 3 is moved back and forth in the axial direction by moving along the longitudinal direction of the slit 12.

スライド操作部材２４には、スリット１２の内側に緩く嵌め込まれてスリット１２の長手方向に沿って各々が同じ径の複数の孔２５（ここでは５個の孔）が一定の深さに一定の間隔で形成された内挿部２４ａが備えられている。この実施例では、そのような孔２５の列が１８０°対称位置（裏と表）に設けられている。   A plurality of holes 25 (here, five holes) having the same diameter along the longitudinal direction of the slit 12 are fitted into the slide operation member 24 loosely inside the slit 12 and have a constant depth and a constant interval. The insertion part 24a formed by is provided. In this embodiment, such rows of holes 25 are provided at 180 ° symmetrical positions (back and front).

一方、ワイヤ取付部材１６には、スライド操作部材２４の内挿部２４ａと操作部本体１１とにまたがって緩く被嵌されて、スライド操作部材２４の孔２５の一つに重なり合う位置に透孔１７が形成された筒状部１６ａが備えられている。なお、透孔１７が複数設けられていても差し支えない。   On the other hand, the wire attachment member 16 is loosely fitted over the insertion portion 24 a of the slide operation member 24 and the operation portion main body 11 and overlaps with one of the holes 25 of the slide operation member 24. The cylindrical part 16a in which is formed is provided. A plurality of through holes 17 may be provided.

そして、ワイヤ取付部材１６の透孔１７とスライド操作部材２４の孔２５とにまたがって真っ直ぐに差し込まれた状態に係合する硬質の連結ピン２７が設けられており、スライド操作部材２４の内挿部２４ａに対してワイヤ取付部材１６の筒状部１６ａをスライドさせることにより、スライド操作部材２４の任意の孔２５とワイヤ取付部材１６の透孔１７とにまたがって連結ピン２７を係合させることができる。   A hard connecting pin 27 is provided to engage with the through hole 17 of the wire attachment member 16 and the hole 25 of the slide operation member 24 so as to be inserted straight. By sliding the tubular portion 16a of the wire attachment member 16 with respect to the portion 24a, the connecting pin 27 is engaged across the arbitrary hole 25 of the slide operation member 24 and the through hole 17 of the wire attachment member 16. Can do.

このようにして、ワイヤ取付部材１６に対するスライド操作部材２４の取り付け位置を、スリット１２の長手方向において相違する複数箇所の中から任意に選択することができる「取付位置選択手段」が構成されている。   In this way, “attachment position selection means” is configured that can arbitrarily select the attachment position of the slide operation member 24 with respect to the wire attachment member 16 from a plurality of locations that differ in the longitudinal direction of the slit 12. .

また、連結ピン２７は、透孔１７と孔２５とにまたがって係合した状態で接着剤２８（固定手段）により固定されており、連結ピン２７が係合する孔２５を選択してワイヤ取付部材１６に対するスライド操作部材２４の取り付け位置が選択された状態で、ワイヤ取付部材１６に対するスライド操作部材２４の取り付け位置が固定される。なお、そのための固定手段が接着剤２８以外のもの（例えば、ねじ等）であっても差し支えない。   Further, the connecting pin 27 is fixed by an adhesive 28 (fixing means) in a state of being engaged with the through hole 17 and the hole 25, and the hole 25 with which the connecting pin 27 is engaged is selected and attached to the wire. In a state where the mounting position of the slide operation member 24 with respect to the member 16 is selected, the mounting position of the slide operation member 24 with respect to the wire mounting member 16 is fixed. Note that the fixing means for that purpose may be other than the adhesive 28 (for example, a screw).

このようにして、ワイヤ取付部材１６に対するスライド操作部材２４の取り付け位置を、スリット１２の長手方向において相違する複数箇所の中から任意に選択すると、スライド操作部材２４の最大可動距離（即ち、操作ワイヤ３の最大ストローク）は、ワイヤ取付部材１６とスライド操作部材２４の合計長とスリット１２の長さとの差に略等しい。   In this manner, when the attachment position of the slide operation member 24 with respect to the wire attachment member 16 is arbitrarily selected from a plurality of locations that differ in the longitudinal direction of the slit 12, the maximum movable distance of the slide operation member 24 (that is, the operation wire) 3) is approximately equal to the difference between the total length of the wire attachment member 16 and the slide operation member 24 and the length of the slit 12.

その結果、図３及び図４に例示されるように、ワイヤ取付部材１６に対するスライド操作部材２４の取り付け位置を変えることにより、スリット１２内におけるワイヤ取付部材１６の最大可動距離Ｌ１，Ｌ２をその機種に合わせて設定し、その状態を固定して出荷することができる。   As a result, as illustrated in FIGS. 3 and 4, the maximum movable distances L <b> 1 and L <b> 2 of the wire attachment member 16 in the slit 12 are changed by changing the attachment position of the slide operation member 24 with respect to the wire attachment member 16. It can be set according to the situation, and the state can be fixed before shipment.

図５は本発明の第２の実施例の内視鏡用ディスポーザブル処置具の操作部を示しており、ワイヤ取付部材１６の筒状部１６ａ側に複数の透孔１７を形成して、スライド操作部材２４の内挿部２４ａ側には、その複数の透孔１７の一つと重なる位置に孔を形成したものである。その他の構成は前述の第１の実施例と同じである。このように構成しても第１の実施例と同様の作用効果が得られる。   FIG. 5 shows the operation part of the disposable treatment instrument for endoscope according to the second embodiment of the present invention, in which a plurality of through holes 17 are formed on the tubular part 16a side of the wire mounting member 16 to perform a slide operation. A hole is formed at a position overlapping with one of the plurality of through holes 17 on the insertion portion 24 a side of the member 24. Other configurations are the same as those in the first embodiment. Even if comprised in this way, the effect similar to a 1st Example is acquired.

また、上記の各実施例において、筒状部１６ａをワイヤ取付部材１６と一体ではなくスライド操作部材２４と一体に形成して、内挿部２４ａをスライド操作部材２４と一体ではなくワイヤ取付部材１６と一体に形成した構成を採っても差し支えない。   Further, in each of the above-described embodiments, the tubular portion 16 a is formed not integrally with the wire attachment member 16 but integrally with the slide operation member 24, and the insertion portion 24 a is not integral with the slide operation member 24 but the wire attachment member 16. It is possible to adopt a structure formed integrally with the.

本発明の第１の実施例の内視鏡用ディスポーザブル処置具の操作部の側面断面図である。It is side surface sectional drawing of the operation part of the disposable treatment tool for endoscopes of the 1st Example of this invention. 本発明の第１の実施例の内視鏡用ディスポーザブル処置具の操作部の分解斜視図である。It is a disassembled perspective view of the operation part of the disposable treatment tool for endoscopes of 1st Example of this invention. 本発明の第１の実施例の内視鏡用ディスポーザブル処置具の操作部の動作を示す側面断面図である。It is side surface sectional drawing which shows operation | movement of the operation part of the disposable treatment tool for endoscopes of 1st Example of this invention. 本発明の第１の実施例の内視鏡用ディスポーザブル処置具の操作部の動作を示す側面断面図である。It is side surface sectional drawing which shows operation | movement of the operation part of the disposable treatment tool for endoscopes of 1st Example of this invention. 本発明の第２の実施例の内視鏡用ディスポーザブル処置具の操作部の側面断面図である。It is side surface sectional drawing of the operation part of the disposable treatment tool for endoscopes of the 2nd Example of this invention.

符号の説明Explanation of symbols

１ 可撓性シース
３ 操作ワイヤ
１１ 操作部本体
１２ スリット
１６ ワイヤ取付部材
１６ａ 筒状部
１７ 透孔（取付位置選択手段）
２４ スライド操作部材
２４ａ 内挿部
２５ 孔（取付位置選択手段）
２７ 連結ピン（取付位置選択手段）
２８ 接着剤（固定手段） DESCRIPTION OF SYMBOLS 1 Flexible sheath 3 Operation wire 11 Operation part main body 12 Slit 16 Wire attachment member 16a Cylindrical part 17 Through-hole (attachment position selection means)
24 slide operation member 24a insertion part 25 hole (attachment position selection means)
27 Connecting pin (Mounting position selection means)
28 Adhesive (fixing means)

Claims (4)

操作部本体に前後方向に細長く形成されたスリット内において操作ワイヤの基端が連結されたワイヤ取付部材に、上記スリット外に突出した形状のスライド操作部材が取り付けられ、上記ワイヤ取付部材を上記スライド操作部材で上記スリットの長手方向に沿って移動させることにより、上記操作ワイヤが軸線方向に進退操作されるように構成された内視鏡用ディスポーザブル処置具の操作部において、
上記ワイヤ取付部材に対する上記スライド操作部材の取り付け位置を、上記スリットの長手方向において相違する複数箇所の中から任意に選択することができる取付位置選択手段を設けて、上記ワイヤ取付部材に対する上記スライド操作部材の取り付け位置を選択することにより上記スリット内における上記ワイヤ取付部材の最大可動距離を設定することができるようにすると共に、
上記ワイヤ取付部材に対する上記スライド操作部材の取り付け位置が選択された状態で上記ワイヤ取付部材に対する上記スライド操作部材の取り付け位置を固定する固定手段を設け、
上記スライド操作部材と上記ワイヤ取付部材の一方には、上記スリット内に緩く嵌め込まれて上記スリットの長手方向に沿って複数の孔が形成された内挿部が備えられて、他方には上記内挿部と上記操作部本体とに緩く被嵌されて上記複数の孔の一つに重なり合う位置に透孔が形成された筒状部が備えられると共に、上記透孔と上記孔とにまたがって係合する連結ピンが設けられて、これらにより上記取付位置選択手段が形成されている内視鏡用ディスポーザブル処置具の操作部。 A slide operation member having a shape protruding out of the slit is attached to a wire attachment member to which the proximal end of the operation wire is coupled in a slit formed in the front and rear direction of the operation unit main body, and the wire attachment member is slid In the operation part of the disposable treatment instrument for endoscope configured such that the operation wire is moved forward and backward in the axial direction by moving the operation member along the longitudinal direction of the slit,
The slide operation on the wire attachment member is provided by providing attachment position selection means capable of arbitrarily selecting the attachment position of the slide operation member relative to the wire attachment member from a plurality of places different in the longitudinal direction of the slit. By selecting the attachment position of the member, the maximum movable distance of the wire attachment member in the slit can be set, and
A fixing means for fixing the mounting position of the slide operation member with respect to the wire mounting member in a state where the mounting position of the slide operation member with respect to the wire mounting member is selected;
One of the slide operation member and the wire attachment member is provided with an insertion portion that is loosely fitted into the slit and formed with a plurality of holes along the longitudinal direction of the slit, and the other is provided with the inner portion. A cylindrical portion that is loosely fitted to the insertion portion and the operation portion main body and has a through-hole formed at a position overlapping one of the plurality of holes is provided, and the tubular portion extends across the through-hole and the hole. The operation part of the disposable treatment tool for endoscopes, in which connecting pins to be combined are provided, and the attachment position selection means is formed by these connecting pins. 操作部本体に前後方向に細長く形成されたスリット内において操作ワイヤの基端が連結されたワイヤ取付部材に、上記スリット外に突出した形状のスライド操作部材が取り付けられ、上記ワイヤ取付部材を上記スライド操作部材で上記スリットの長手方向に沿って移動させることにより、上記操作ワイヤが軸線方向に進退操作されるように構成された内視鏡用ディスポーザブル処置具の操作部において、
上記ワイヤ取付部材に対する上記スライド操作部材の取り付け位置を、上記スリットの長手方向において相違する複数箇所の中から任意に選択することができる取付位置選択手段を設けて、上記ワイヤ取付部材に対する上記スライド操作部材の取り付け位置を選択することにより上記スリット内における上記ワイヤ取付部材の最大可動距離を設定することができるようにすると共に、
上記ワイヤ取付部材に対する上記スライド操作部材の取り付け位置が選択された状態で上記ワイヤ取付部材に対する上記スライド操作部材の取り付け位置を固定する固定手段を設け、
上記ワイヤ取付部材と上記スライド操作部材の一方には、上記操作部本体に緩く被嵌されて上記スリットの長手方向に沿って複数の透孔が形成された筒状部が備えられて、他方には上記筒状部の内側に位置するように上記スリット内に緩く嵌め込まれて上記複数の透孔の一つと重なる位置に孔が形成された内挿部が備えられると共に、上記透孔と上記孔とにまたがって係合する連結ピンが設けられて、これらにより上記取付位置選択手段が形成されている内視鏡用ディスポーザブル処置具の操作部。 A slide operation member having a shape protruding out of the slit is attached to a wire attachment member to which the proximal end of the operation wire is coupled in a slit formed in the front and rear direction of the operation unit main body, and the wire attachment member is slid In the operation part of the disposable treatment instrument for endoscope configured such that the operation wire is moved forward and backward in the axial direction by moving the operation member along the longitudinal direction of the slit,
The slide operation on the wire attachment member is provided by providing attachment position selection means capable of arbitrarily selecting the attachment position of the slide operation member relative to the wire attachment member from a plurality of places different in the longitudinal direction of the slit. By selecting the attachment position of the member, the maximum movable distance of the wire attachment member in the slit can be set, and
A fixing means for fixing the mounting position of the slide operation member with respect to the wire mounting member in a state where the mounting position of the slide operation member with respect to the wire mounting member is selected;
One of the wire attachment member and the slide operation member is provided with a cylindrical portion that is loosely fitted to the operation portion main body and has a plurality of through holes formed along the longitudinal direction of the slit. Is provided with an insertion portion that is loosely fitted into the slit so as to be located inside the cylindrical portion and has a hole formed at a position overlapping one of the plurality of through holes, and the through hole and the hole. An operation portion of the disposable treatment instrument for an endoscope, in which a connecting pin that is engaged with each other is provided, and the attachment position selection means is formed by these connecting pins. 上記固定手段が、上記連結ピンを上記透孔と上記孔とにまたがって係合した状態で固定するものである請求項１又は２記載の内視鏡用ディスポーザブル処置具の操作部。 The operation part of the disposable treatment instrument for endoscope according to claim 1 or 2 , wherein the fixing means fixes the connecting pin in a state of being engaged with the through hole and the hole. 上記固定手段が接着剤である請求項３記載の内視鏡用ディスポーザブル処置具の操作部。 The operation part of the disposable treatment instrument for endoscope according to claim 3 , wherein the fixing means is an adhesive.
JP2008051820A 2008-03-03 2008-03-03 Operation unit of disposable treatment instrument for endoscope Expired - Fee Related JP5186246B2 (en)

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