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JP2005328882A - Treatment instrument for endoscope, and endoscopic system - Google Patents

Treatment instrument for endoscope, and endoscopic system
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JP2005328882A
JP2005328882AJP2004147506AJP2004147506AJP2005328882AJP 2005328882 AJP2005328882 AJP 2005328882AJP 2004147506 AJP2004147506 AJP 2004147506AJP 2004147506 AJP2004147506 AJP 2004147506AJP 2005328882 AJP2005328882 AJP 2005328882A
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sheath
endoscope
treatment
channel
rotation
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Japanese (ja)
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Tsutomu Okada
勉 岡田
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Olympus Corp
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Olympus Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To enable a distal end treatment section to be easily rotated in a treatment instrument which is compactly integrated by winding an insertion section into a roll shape. <P>SOLUTION: This treatment instrument 1 has a first sheath 6 which is fixed to the proximal end section of the distal end treatment section 4, and the proximal end section of the first sheath 6 is connected with a second sheath 15 through a rotary connecting means 7. The second sheath 15 is wound up by a reel 23 of a housing device 21. Also, in the first sheath 6, a first operation wire which drives the distal end treatment section 4 is passed in a manner to be freely advanceable/retractable, and the first operation wire is connected with a second operation wire through the rotary connecting means 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

Translated fromJapanese

本発明は、体内に挿入される内視鏡用処置具及び内視鏡システムに関する。  The present invention relates to an endoscope treatment tool and an endoscope system that are inserted into a body.

内視鏡用処置具(以下、処置具とする)は、内視鏡に挿通させて用いるもので、内視鏡の処置具挿通チャンネルに挿通される可撓性の挿入部を備え、挿入部の先端には生体に処置を行う先端処置部が設けられている。
このような処置具には、先端処置部が回転自在になっているものがある(例えば、特許文献1、特許文献2参照)。例えば、特許文献1に開示されている処置具は、挿入部の基端側に設けた操作部を回転させることで、挿入部及び先端処置部が回転させられるようになっている。特許文献2に開示されている処置具は、挿入部が可撓性のシースを有し、このシース内に進退自在に挿通されたフレキシブルシャフトを回転させることで、フレキシブルシャフトの先端に取り付けられている先端処置部が回転させることができる。
ここで、挿入部は、長くて扱い難いことがあるので、保管時などに挿入部を容器にロール状に丸めてコンパクトにし、使用時に挿入部を容器から引き出すものが知られている(例えば、特許文献3参照)。
特開平3‐47246号公報米国特許第6235026号明細書米国特許第5695491号明細書
An endoscope treatment tool (hereinafter referred to as a treatment tool) is used by being inserted through an endoscope, and includes a flexible insertion portion that is inserted into a treatment instrument insertion channel of an endoscope. A distal treatment section for performing treatment on the living body is provided at the distal end.
Some of these treatment tools have a distal treatment section that is rotatable (see, for example, Patent Document 1 and Patent Document 2). For example, in the treatment instrument disclosed in Patent Document 1, the insertion portion and the distal treatment portion are rotated by rotating an operation portion provided on the proximal end side of the insertion portion. The treatment instrument disclosed inPatent Document 2 has a flexible sheath at the insertion portion, and is attached to the distal end of the flexible shaft by rotating the flexible shaft inserted in the sheath so as to be able to advance and retract. The distal treatment section that is present can be rotated.
Here, since the insertion portion may be long and difficult to handle, it is known that the insertion portion is rolled into a container in a roll shape for storage and the like, and is compact, and the insertion portion is pulled out of the container at the time of use (for example, (See Patent Document 3).
JP-A-3-47246 US Pat. No. 6,235,026 US Pat. No. 5,695,491

しかしながら、挿入部の基端部がロール状に巻かれた場合で先端処置部を回転させようとすると、挿入部が巻かれた容器全体を回転させなければならないので、操作が面倒であった。
この発明は、このような事情に鑑みてなされたものであり、その目的とするところは、挿入部をロール状に巻いてコンパクトにまとめた処置具において先端処置部を容易に回転できるようにすることである。
However, if the distal end treatment portion is to be rotated when the proximal end portion of the insertion portion is wound in a roll shape, the entire container around which the insertion portion is wound has to be rotated, which makes the operation troublesome.
The present invention has been made in view of such circumstances, and an object of the present invention is to make it possible to easily rotate the distal treatment section in a treatment instrument in which the insertion section is wound into a roll shape and is compactly assembled. That is.

上記の課題を解決する本発明の請求項1に係る発明は、内視鏡のチャンネルに挿通されるシースと、前記シースの先端に設けられ、生体に対して処置を行う処置部と、前記処置部を駆動させるために前記シースに挿通される操作伝達手段と、前記操作伝達手段及び前記シースを巻き取る巻取手段と、前記巻取手段から繰り出した前記シースを前記チャンネルに挿通させたときに、前記操作伝達手段において前記チャンネルに挿通された部分と前記巻取手段に巻き取れている部分との間を回転自在に接続する回転接続手段と、を備えることを特徴とする内視鏡用処置具とした。
この内視鏡用処置具は、チャンネルにシースを挿通させた状態で、回転接続手段よりも先端側の操作伝達手段を回転させると、操作伝達手段に接続されている処置部が回転駆動される。このとき、回転接続手段が回転し、回転接続手段よりも巻取手段側の操作伝達手段は回転しない。
The invention according to claim 1 of the present invention that solves the above-described problems includes a sheath that is inserted into a channel of an endoscope, a treatment unit that is provided at a distal end of the sheath and that performs treatment on a living body, and the treatment An operation transmission means that is inserted through the sheath to drive the portion, a winding means that winds up the operation transmission means and the sheath, and the sheath that is fed from the winding means is inserted into the channel. An endoscopic treatment comprising: a rotation connecting means for rotatably connecting a portion inserted through the channel and a portion wound around the winding means in the operation transmitting means. As a tool.
In this endoscopic treatment tool, when the operation transmission means on the distal end side of the rotation connection means is rotated with the sheath inserted through the channel, the treatment section connected to the operation transmission means is rotationally driven. . At this time, the rotation connecting means rotates, and the operation transmitting means on the winding means side rather than the rotation connecting means does not rotate.

請求項2に係る発明は、請求項1に記載の内視鏡用処置具において、前記回転接続手段は、前記シースを前記チャンネルに挿通させたときに、前記シースにおいて前記チャンネルに挿通された部分と前記巻取手段に巻き取られている部分との間を回転自在に接続することを特徴とする。
この内視鏡用処置具は、シースの先端に処置部が接続されている場合に、チャンネルにシースを挿通させた状態で、回転接続手段よりも先端側のシースを回転させると、シースと共に処置部が回転する。このとき、回転接続手段が機能し、回転接続手段よりも巻取手段側のシースは回転しない。
The invention according toclaim 2 is the endoscope treatment instrument according to claim 1, wherein the rotary connecting means is a portion inserted through the channel in the sheath when the sheath is inserted through the channel. And a portion wound around the winding means are rotatably connected.
When the treatment section is connected to the distal end of the sheath, this endoscopic treatment instrument is treated together with the sheath by rotating the sheath on the distal end side relative to the rotation connecting means with the sheath inserted through the channel. The part rotates. At this time, the rotary connecting means functions and the sheath on the winding means side does not rotate with respect to the rotary connecting means.

請求項3に係る発明は、請求項1に記載の内視鏡用処置具において、前記シースは、前記チャンネルに挿通される第一の部分と、前記第一の部分に一端が回転自在に接続される第二の部分と、前記第二の部分の他端に前記回転接続手段を介して接続される第三の部分とを有し、前記第二の部分は、前記操作伝達手段の回転自在な部分に供回りすべく係合されていることを特徴とする。
この内視鏡用処置具では、シースの第二の部分を回転させると、操作伝達手段が供回りし、操作伝達手段に接続されている処置部が回転する。このとき、シースは、第二の部分のみが回転し、第一の部分及び第三の部分は回転しない。
The invention according toclaim 3 is the endoscope treatment instrument according to claim 1, wherein the sheath is connected to the first portion inserted through the channel and to one end of the first portion so as to be freely rotatable. And a third part connected to the other end of the second part via the rotation connecting means, and the second part is freely rotatable by the operation transmitting means. It is characterized by being engaged so that it may be carried to a certain part.
In this endoscopic treatment tool, when the second portion of the sheath is rotated, the operation transmission means is rotated, and the treatment section connected to the operation transmission means is rotated. At this time, only the second part of the sheath rotates, and the first part and the third part do not rotate.

請求項4に係る発明は、請求項1から請求項3のいずれか一項に記載の内視鏡用処置具において、前記巻取手段を回転自在に支持した収容装置をさらに有することを特徴とする。
この内視鏡用処置具では、収容装置を有するので、巻取部材による内視鏡用処置具の巻取り操作や、繰り出し操作が容易になる。
The invention according toclaim 4 is the endoscope treatment instrument according to any one of claims 1 to 3, further comprising a storage device that rotatably supports the winding means. To do.
Since this endoscopic treatment instrument has a storage device, the winding operation of the endoscopic treatment instrument by the winding member and the feeding operation are facilitated.

請求項5に係る発明は、請求項4に記載の内視鏡用処置具において、前記収容装置には、前記操作伝達手段の回転自在な部分を回転させる回転ノブが設けられていることを特徴とする。
この内視鏡用処置具では、回転ノブを回転させると、操作伝達手段のうち、巻取手段に巻き取られていない部分が回転駆動させられる。
According to a fifth aspect of the present invention, in the endoscope treatment instrument according to the fourth aspect, the accommodation device is provided with a rotation knob for rotating a rotatable portion of the operation transmitting means. And
In this endoscope treatment tool, when the rotary knob is rotated, the portion of the operation transmitting means that is not wound around the winding means is driven to rotate.

請求項6に係る発明は、請求項4に記載の内視鏡用処置具において、前記回転接続手段は、前記収容装置の開口から繰り出された前記シースを前記チャンネルに挿通させたときに、前記チャンネルの挿入口から前記開口までの間にくるように配設されていることを特徴とする。
この内視鏡用処置具では、シースをチャンネルに挿通させた状態で、回転接続手段が内視鏡と収容装置との間に露出するので、回転接続手段を手で回転させると、処置部を回転させることができる。
The invention according toclaim 6 is the endoscope treatment tool according toclaim 4, wherein the rotation connecting means inserts the sheath drawn out from the opening of the storage device into the channel. It is arranged so as to be between the channel insertion opening and the opening.
In this endoscopic treatment tool, the rotation connecting means is exposed between the endoscope and the housing device with the sheath inserted through the channel. Can be rotated.

請求項7に係る発明は、請求項1から請求項5のいずれか一項に記載の内視鏡用処置具の前記巻取手段を支持する取付部が設けられた前記内視鏡を備えることを特徴とする内視鏡システムとした。
この内視鏡システムでは、巻取手段を内視鏡に支持させた状態で内視鏡用処置具の操作をすることが可能になる。
The invention according toclaim 7 includes the endoscope provided with an attachment portion that supports the winding means of the treatment instrument for an endoscope according to any one of claims 1 to 5. An endoscope system characterized by
In this endoscope system, the endoscope treatment tool can be operated in a state where the winding means is supported by the endoscope.

本発明によれば、内視鏡用処置具に回転接続手段を設けることで、シースを内視鏡のチャンネルに挿通させたときに、操作伝達手段や、シースを回転させることができるようになるので、内視鏡用処置具全体を回転させなくても処置部を回転させることができるようになる。特に、巻取手段にシース及び操作伝達手段が巻き取られているときであっても、巻取手段を回転させる必要がなくなるので、回転操作が容易になる。  According to the present invention, by providing the rotation connecting means in the endoscope treatment tool, the operation transmitting means and the sheath can be rotated when the sheath is inserted through the channel of the endoscope. Therefore, the treatment section can be rotated without rotating the entire endoscope treatment tool. In particular, even when the sheath and the operation transmitting means are wound around the winding means, it is not necessary to rotate the winding means, so that the rotating operation is facilitated.

本発明の第一実施形態について図1乃至図7を参照しながら詳細に説明する。
図1乃至図3に示すように、内視鏡処置具(以下、処置具という)1は、一対の鉗子片2を支持部材3に回動自在に取り付けた先端処置部4を有している。支持部材3の基端部には、長尺の挿入部5が取り付けられている。
挿入部5は、密巻きコイルからなる可撓性の第一シース6を有している。第一シース6の先端部には、先端処置部4の支持部材3が固定されている。図2及び3に示すように、第一シース6の基端部には、回転接続手段7の外環部8が取り付けられている。さらに、第一シース6内には、操作伝達手段である第一操作ワイヤ9が進退自在に挿通されている。第一操作ワイヤ9の先端部には、一対の鉗子片2がリンク機構(不図示)を介して連結されている。図2に示すように、第一操作ワイヤ9の基端部には、回転接続手段7の内環部10が取り付けられている。
A first embodiment of the present invention will be described in detail with reference to FIGS.
As shown in FIGS. 1 to 3, an endoscope treatment tool (hereinafter referred to as a treatment tool) 1 has adistal treatment section 4 in which a pair offorceps pieces 2 are rotatably attached to asupport member 3. . Along insertion portion 5 is attached to the base end portion of thesupport member 3.
Theinsertion part 5 has a flexiblefirst sheath 6 made of a closely wound coil. Thesupport member 3 of thedistal treatment section 4 is fixed to the distal end portion of thefirst sheath 6. As shown in FIGS. 2 and 3, theouter ring portion 8 of the rotation connecting means 7 is attached to the proximal end portion of thefirst sheath 6. Further, afirst operation wire 9 which is an operation transmission means is inserted into thefirst sheath 6 so as to be able to advance and retreat. A pair offorceps pieces 2 are connected to the distal end portion of thefirst operation wire 9 via a link mechanism (not shown). As shown in FIG. 2, theinner ring portion 10 of the rotation connecting means 7 is attached to the proximal end portion of thefirst operation wire 9.

回転接続手段7は、外環部8と内環部10とが挿入部5の軸線を中心にして同軸上に配置されている。さらに、外環部8は、第一シース6に取り付けられている第一外環部材11と、第一外環部材11に回転自在に設けられた第二外環部12とを有している。第一外環部材11には、挿入部5の軸線を中心とするリング状の突部13が設けられている。この突部13には、第二外環部12に設けられたリング状の突部14が、回転自在に係合されている。この第二外環部12の基端部には、第二シース15の先端部が取り付けられている。
また、回転接続手段7の内環部10は、第一操作ワイヤ9の基端部に取り付けられた第一内環部材16と、第一内環部材16に回転自在に係合させられた第二内環部材17とを有している。第一内環部材16の先端部には、第一操作ワイヤ9が取り付けられ、第一内環部材16の基端部には、凹部18が設けられている。この凹部18には、第二内環部材17の先端に設けられた係合突起19が挿入されている。係合突起19は、凹部18の開口部(第2シース15側)の径よりも大きくなっており、抜け落ちが防止されている。第二内環部材17の基端部には、操作伝達手段である第二操作ワイヤ20が取り付けられている。
In the rotation connecting means 7, theouter ring portion 8 and theinner ring portion 10 are arranged coaxially with the axis of theinsertion portion 5 as the center. Furthermore, theouter ring part 8 has a firstouter ring member 11 attached to thefirst sheath 6 and a secondouter ring part 12 provided rotatably on the firstouter ring member 11. . The firstouter ring member 11 is provided with a ring-shaped protrusion 13 centered on the axis of theinsertion portion 5. A ring-shaped protrusion 14 provided on the secondouter ring portion 12 is rotatably engaged with theprotrusion 13. The distal end portion of thesecond sheath 15 is attached to the proximal end portion of the secondouter ring portion 12.
Further, theinner ring portion 10 of the rotary connecting means 7 includes a firstinner ring member 16 attached to a proximal end portion of thefirst operation wire 9 and a firstinner ring member 16 rotatably engaged with the firstinner ring member 16. And twoinner ring members 17. Afirst operation wire 9 is attached to the distal end portion of the firstinner ring member 16, and arecess 18 is provided at the proximal end portion of the firstinner ring member 16. Anengagement protrusion 19 provided at the tip of the secondinner ring member 17 is inserted into therecess 18. Theengagement protrusion 19 is larger than the diameter of the opening (thesecond sheath 15 side) of therecess 18 and is prevented from falling off. Asecond operation wire 20, which is an operation transmission means, is attached to the proximal end portion of the secondinner ring member 17.

第二シース15は、第一シース6と略同じ形状を有している。図3に示すように、第二シース15は、収容装置21のカセット22内に挿入され、カセット22内のリール23に巻き取られている。
カセット22は、側面視で円形を有し、その一部が接線方向に延出し、その先端には固定手段24が形成されている。この固定手段24は、内視鏡に固定する際に用いられる。このようなカセット22は、2つのケース25,26を組み合わせて製造されている。すなわち、ケース25は、円板状の底部25aの周縁部に沿って側部25bが立設されている。図1に示すように、ケース26は、側部25bに嵌合する円板状の蓋部からなり、その中央には円形の孔27が形成されている。なお、側部25bは、一部が切り欠かれた略C字形状を有しており、これによりカセット22には開口部28が形成されている。
Thesecond sheath 15 has substantially the same shape as thefirst sheath 6. As shown in FIG. 3, thesecond sheath 15 is inserted into thecassette 22 of thestorage device 21 and wound around thereel 23 in thecassette 22.
Thecassette 22 has a circular shape in side view, a part of which extends in the tangential direction, and a fixing means 24 is formed at the tip thereof. This fixing means 24 is used when fixing to an endoscope. Such acassette 22 is manufactured by combining twocases 25 and 26. That is, as forcase 25,side part 25b is standingly arranged along the peripheral part of disc-likebottom part 25a. As shown in FIG. 1, thecase 26 is formed of a disc-shaped lid portion that is fitted to theside portion 25 b, and acircular hole 27 is formed at the center thereof. Note that theside portion 25b has a substantially C shape with a part cut away, whereby anopening 28 is formed in thecassette 22.

図4に示すように、リール23は、軸受30によってカセット22に回転自在に支持されており、その外周面に挿入部5がロール状に巻き取られる巻取手段である。さらに、このリール23において、ケース25に臨む側部には、切欠部31が孔27に連通するように設けられている。
リール23には、切欠部31からリール23の内部を通り、その外周面まで貫通する通路32が形成されており、ここに挿入部5(第二シース15及び第二操作ワイヤ20)が挿通されている。第二シース15の基端部は、通路32の出口側に固定された第一接続部34に固定されている。第一接続部34は、切欠部31に固定された基部34aの基端に、拡径したフランジ部34bが設けられている。第二操作ワイヤ20は、第一接続部34内を進退自在に貫通し、フランジ部34bの端面からさらに所定長だけ延びている。そして、第二操作ワイヤ20の基端部には、第二接続部35が取り付けられている。第二接続部35は、第二操作ワイヤ20の基端に固定されたフランジ部35aを有し、フランジ部35aからは縮径した係止部35bが延び、係止部35bの基端には拡径された端部35cが取り付けられている。第二接続部35と第一接続部34のフランジ部34bとの間には、コイルバネ33が配設されており、このコイルバネ33内に第二操作ワイヤ20が挿通されている。
As shown in FIG. 4, thereel 23 is a winding means that is rotatably supported by thecassette 22 by abearing 30, and theinsertion portion 5 is wound in a roll shape on the outer peripheral surface thereof. Further, in thereel 23, anotch 31 is provided on the side facing thecase 25 so as to communicate with thehole 27.
Thereel 23 is formed with apassage 32 that passes through the inside of thereel 23 from thenotch 31 to the outer peripheral surface thereof, and the insertion portion 5 (thesecond sheath 15 and the second operation wire 20) is inserted therethrough. ing. A proximal end portion of thesecond sheath 15 is fixed to afirst connection portion 34 fixed to the outlet side of thepassage 32. Thefirst connection portion 34 is provided with aflange portion 34 b having an enlarged diameter at the base end of thebase portion 34 a fixed to thenotch portion 31. Thesecond operation wire 20 penetrates through the first connectingportion 34 so as to be able to advance and retreat, and extends further from the end face of theflange portion 34b by a predetermined length. Asecond connection portion 35 is attached to the proximal end portion of thesecond operation wire 20. Thesecond connection portion 35 has aflange portion 35a fixed to the proximal end of thesecond operation wire 20, and a lockingportion 35b having a reduced diameter extends from theflange portion 35a. Anenlarged end portion 35c is attached. Acoil spring 33 is disposed between thesecond connection portion 35 and theflange portion 34 b of thefirst connection portion 34, and thesecond operation wire 20 is inserted into thecoil spring 33.

図5に示すように、第一接続部34と第二接続部35とには、操作部36を係合させることができる。図5及び図6に示すように、操作部36は、処置具1の操作をするもので、一対の鋏状部材37,38を備え、それぞれの中央部近傍で互いに回動自在に枢支されている。鋏状部材37,38の先端には、第一接続部34が係合可能な挿入溝(第1の係止部)39が形成され、鋏状部材38の先端には、第二接続部35の係止部35bに挿入される切り欠き40が設けられている。また、一対の鋏状部材37,38の基端には、指を挿通して開閉操作可能な指掛部41が設けられている。さらに、一対の鋏状部材37,38の基端側には、弾性を有し、互いに内側に突出して交差可能に形成されたラチェット42が配設されている。ラチェット42の交差面には、互いに係合可能とされて互いに接近する方向にのみスライド可能な顎状の歯42aが形成されている。  As shown in FIG. 5, theoperation portion 36 can be engaged with thefirst connection portion 34 and thesecond connection portion 35. As shown in FIGS. 5 and 6, theoperation unit 36 operates the treatment instrument 1 and includes a pair of hook-shapedmembers 37 and 38, which are pivotally supported with each other in the vicinity of the central portion thereof. ing. An insertion groove (first locking portion) 39 with which thefirst connection portion 34 can be engaged is formed at the tip of the hook-shapedmembers 37, 38, and thesecond connection portion 35 is formed at the tip of the hook-shapedmember 38. Anotch 40 to be inserted into the lockingportion 35b is provided. In addition, afinger hook 41 that can be opened and closed by inserting a finger is provided at the proximal ends of the pair of hook-shapedmembers 37 and 38. Further, aratchet 42 is provided on the base end side of the pair of hook-shapedmembers 37 and 38 and has elasticity and is formed so as to protrude inward and intersect each other. On the intersecting surface of theratchet 42, jaw-like teeth 42a are formed that can be engaged with each other and can slide only in a direction approaching each other.

ここで、この処置具1と共に用いられる内視鏡50について図7を参照して説明する。
内視鏡50は、体内に挿入される可撓性の挿入部51を有し、この挿入部51の基端には操作部52が設けられている。操作部52は、内視鏡操作者が操作をするスイッチやノブが設けられている。さらに、操作部52内及び挿入部51内には、処置具チャンネル53が形成されている。この処置具チャンネル53は、挿入部51の先端から処置具1を突出させるもので、その挿入口54は操作部52の側部に設けられている。また、挿入口54の近傍には、収容装置21の固定手段24を係合させる取付部55が設けられている。
Here, theendoscope 50 used with the treatment tool 1 will be described with reference to FIG.
Theendoscope 50 has aflexible insertion portion 51 to be inserted into the body, and anoperation portion 52 is provided at the proximal end of theinsertion portion 51. Theoperation unit 52 is provided with switches and knobs that are operated by the endoscope operator. Further, atreatment instrument channel 53 is formed in theoperation portion 52 and theinsertion portion 51. Thetreatment instrument channel 53 projects the treatment instrument 1 from the distal end of theinsertion portion 51, and theinsertion port 54 is provided on the side portion of theoperation portion 52. Further, anattachment portion 55 for engaging the fixing means 24 of thestorage device 21 is provided in the vicinity of theinsertion port 54.

次に、この処置具1の作用について説明する。
まず、内視鏡50の挿入部51を体内に挿入し、操作部52に処置具1の収容装置21を固定する。この状態で、内視鏡操作者が処置具1の挿入部5を掴んで、先端処置部4及び挿入部5を処置具チャンネル53内に送り込む。このとき、リール23が回転し、巻き取られていた挿入部5が繰り出される。そして、先端処置部4が内視鏡50の先端から所定長だけ突出したら、挿入部5の送り出しを停止する。
Next, the operation of the treatment tool 1 will be described.
First, theinsertion portion 51 of theendoscope 50 is inserted into the body, and theaccommodation device 21 of the treatment instrument 1 is fixed to theoperation portion 52. In this state, the endoscope operator grasps theinsertion section 5 of the treatment instrument 1 and feeds thedistal treatment section 4 and theinsertion section 5 into thetreatment instrument channel 53. At this time, thereel 23 rotates and the insertedportion 5 that has been wound up is fed out. When thedistal treatment section 4 protrudes from the distal end of theendoscope 50 by a predetermined length, the feeding of theinsertion section 5 is stopped.

ここで、回転接続手段7は、処置具1を内視鏡50に挿通させたときに、内視鏡50の挿入口54から収容装置21の開口部28に至るまでの間に来るように配設されている。したがって、内視鏡操作者が回転接続手段7の第一外環部材11を掴んで、軸線回りに回転させると、第一外環部材11に固定されている第一シース6が回転し、その先端に設けられている先端処置部4、つまり一対の鉗子片2が軸線周りに回転する。このとき、一対の鉗子片2にリンク機構を介して連結されている第一操作ワイヤ9も回転するが、回転接続手段7の内環部10が空転するので、第二操作ワイヤ20は回転しない。  Here, when the treatment instrument 1 is inserted through theendoscope 50, therotation connecting means 7 is arranged so as to come between theinsertion port 54 of theendoscope 50 and theopening 28 of thestorage device 21. It is installed. Therefore, when the endoscope operator grasps the firstouter ring member 11 of therotation connecting means 7 and rotates it around the axis, thefirst sheath 6 fixed to the firstouter ring member 11 rotates, Thedistal treatment section 4 provided at the distal end, that is, the pair offorceps pieces 2 rotates around the axis. At this time, thefirst operation wire 9 connected to the pair offorceps pieces 2 via the link mechanism also rotates. .

一対の鉗子片2を開閉させる場合には、図5に示すように操作部36を第一接続部34及び第二接続部35に係合させ、指掛部41同士を離間させ、第二接続部35を第一接続部34に近接するように移動させる。これにより、第二接続部35に取り付けられている第二操作ワイヤ20が処置具チャンネル53に向かって前進し、内環部10を介して連結されている第一操作ワイヤ9が前進し、一対の鉗子片2が開く。一方、一対の鉗子片2を閉じるときには、操作部36で第二接続部35を第一接続部34から離間させる。第二操作ワイヤ20、内環部10及び第一操作ワイヤ9が後退し、一対の鉗子片2が閉じる。操作部36には、ラチェット42が設けられており、内視鏡操作者が操作部36から手を離しても一対の鉗子片2は閉状態を維持する。
なお、処置具1を処置具チャンネル53から抜去する際には、挿入部5を引き戻し、リール23に巻き取らせる。
When opening and closing the pair offorceps pieces 2, as shown in FIG. 5, theoperation portion 36 is engaged with thefirst connection portion 34 and thesecond connection portion 35, thefinger hook portions 41 are separated from each other, and the second connection Thepart 35 is moved so as to be close to thefirst connection part 34. Thereby, thesecond operation wire 20 attached to thesecond connection portion 35 advances toward thetreatment instrument channel 53, and thefirst operation wire 9 connected via theinner ring portion 10 advances, Theforceps piece 2 is opened. On the other hand, when closing the pair offorceps pieces 2, the second connectingportion 35 is separated from the first connectingportion 34 by theoperation portion 36. Thesecond operation wire 20, theinner ring portion 10, and thefirst operation wire 9 are retracted, and the pair offorceps pieces 2 are closed. Theoperation unit 36 is provided with aratchet 42, and the pair offorceps pieces 2 is kept closed even when the endoscope operator removes his / her hand from theoperation unit 36.
When the treatment instrument 1 is removed from thetreatment instrument channel 53, theinsertion portion 5 is pulled back and wound on thereel 23.

この実施形態では、処置具1の挿入部5のうち、主に収容装置21に巻き取られている部分(第二シース15及び第二操作ワイヤ20)と、主に内視鏡50に挿通される部分(第一シース6及び第一操作ワイヤ9)とを、回転接続手段7によって回転自在に連結したので、内視鏡50に挿通されている部分のみを回転させることが可能になる。このため、先端処置部4を回転させる場合に、収容装置21全体を回転させる必要がなくなり、回転操作が容易になる。特に、回転接続手段7が、処置具1の挿通時に、内視鏡50から収容装置21に至るまでの間に露出する位置に設けたので、内視鏡操作者が手動で、かつ簡単に、処置具1の先端部分を回転させることができる。
また、収容装置21を内視鏡50に固定できるようにしたので、操作が容易になる。
In this embodiment, theinsertion portion 5 of the treatment instrument 1 is inserted through a portion (second sheath 15 and second operation wire 20) mainly wound around thestorage device 21 and mainly through theendoscope 50. Since the parts (thefirst sheath 6 and the first operation wire 9) are rotatably connected by therotary connecting means 7, only the part inserted through theendoscope 50 can be rotated. For this reason, when rotating thedistal treatment section 4, it is not necessary to rotate theentire storage device 21, and the rotation operation is facilitated. In particular, since therotary connecting means 7 is provided at a position where it is exposed between theendoscope 50 and thestorage device 21 when the treatment instrument 1 is inserted, the endoscope operator can manually and easily The distal end portion of the treatment instrument 1 can be rotated.
Further, since thestorage device 21 can be fixed to theendoscope 50, the operation becomes easy.

本発明の第二実施形態について図8乃至図13を参照して説明する。なお、第一実施形態と同じ構成要素には同一の符号を付してある。また第一実施形態と重複する説明は省略する。
図8に示すように、処置具60は、先端処置部4の基端に設けられた挿入部5を有し、挿入部5の基端側には収容装置61を有している。
挿入部5は、先端処置部4に取り付けられた第一シース62を有し、第一シース62には回転接続手段7を介して第二シース15が回転自在に接続されている。また、第一シース62内には、第一操作ワイヤ9が進退自在に挿通され、第一操作ワイヤ9には回転接続手段7を介して第二操作ワイヤ20が回転自在に接続されている。
ここで、図9及び図10に示すように、第一シース62には、断面視で円周の一部が切り取られてできた平面62aが設けられている。
A second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same component as 1st embodiment. Further, the description overlapping with the first embodiment is omitted.
As shown in FIG. 8, thetreatment instrument 60 has aninsertion portion 5 provided at the proximal end of thedistal treatment section 4, and astorage device 61 on the proximal end side of theinsertion portion 5.
Theinsertion section 5 has afirst sheath 62 attached to thedistal treatment section 4, and thesecond sheath 15 is rotatably connected to thefirst sheath 62 via the rotational connection means 7. Further, thefirst operation wire 9 is inserted into thefirst sheath 62 so as to advance and retreat, and thesecond operation wire 20 is rotatably connected to thefirst operation wire 9 via therotation connecting means 7.
Here, as shown in FIGS. 9 and 10, thefirst sheath 62 is provided with aflat surface 62a formed by cutting off a part of the circumference in a sectional view.

収容装置61は、巻取部材であるリール63を回転自在に支持するカセット64を有している。カセット64は、略円柱形状を有し、その一部が接線方向に延びて延設部65となり、延設部65の先端には、接続部66が設けられている。
接続部66は、挿入部5が挿通する開口を有すると共に、処置具チャンネル53の挿入口54を覆うように内視鏡50に固定できるようになっている固定手段である。接続部66の一例としては、挿入口54に係合する顎部を設け、この顎部を湾曲可能に形成すると共に、挿入口54のフランジ面に当接するように付勢された係止板とがあげられる。この場合には、挿入口54が取付部となる。
また、カセット64の側面には、操作部67が取り付けられている。操作部67は、回転レバー68と、回転レバー68の回転中心に固定された開閉操作部69とを有している。回転レバー68は、リール63の回転軸に連結され、リール63を回転駆動させるようになっている。開閉操作部69は、リール63の軸線方向に進退移動するスライダ70を有している。第二シース15の基端部は、リール63に固定されており、第二操作ワイヤ20の基端部は、リール63及びカセット64、回転レバー68を進退自在に貫通し、スライダ70に接続されている。
Thestorage device 61 includes acassette 64 that rotatably supports areel 63 that is a winding member. Thecassette 64 has a substantially cylindrical shape, a part of which extends in the tangential direction to form anextended portion 65, and a connectingportion 66 is provided at the distal end of the extendedportion 65.
Theconnection portion 66 is a fixing means that has an opening through which theinsertion portion 5 is inserted and can be fixed to theendoscope 50 so as to cover theinsertion port 54 of thetreatment instrument channel 53. As an example of theconnection portion 66, a jaw portion that engages with theinsertion port 54 is provided, the jaw portion is formed so as to be bendable, and a locking plate that is urged to come into contact with the flange surface of theinsertion port 54 Is given. In this case, theinsertion port 54 serves as an attachment portion.
Anoperation unit 67 is attached to the side surface of thecassette 64. Theoperation unit 67 includes arotation lever 68 and an opening /closing operation unit 69 fixed to the rotation center of therotation lever 68. Therotation lever 68 is connected to the rotation shaft of thereel 63 and rotates thereel 63. The opening /closing operation unit 69 has aslider 70 that moves forward and backward in the axial direction of thereel 63. The proximal end portion of thesecond sheath 15 is fixed to thereel 63, and the proximal end portion of thesecond operation wire 20 penetrates thereel 63, thecassette 64, and therotation lever 68 so as to be movable forward and backward, and is connected to theslider 70. ing.

さらに、図9に示すように、収容装置61の延設部65には、リール63の回転軸と略直交する方向に開口する貫通孔71が形成されており、この貫通孔71に回転ノブ72が挿入されている。貫通孔71は、略方形の開口部を有し、そのそれぞれから回転ノブ72の一部が外側に露出している。回転ノブ72は、略円柱形状を有し、その外周に溝が刻まれており、内視鏡操作者が指をかけ易くなっている。さらに、回転ノブ72の中心軸線上には、ノブ孔73が回転ノブ72を貫通するように形成されている。図12に示すように、ノブ孔の断面形状は、円周の一部を直線状にした形状になっており、この形状は、第一シース62の外形に略等しい。このため、ノブ孔73の直線部73aと、第一シース62の平面62aとを一致させると、第一シース62を回転ノブ72に、軸線回りに回転不能で、かつ軸線方向に進退可能に挿通させることができる。
なお、回転ノブ72を挿入する貫通孔71は、リール63の回転軸と平行に開口するように設けても良い。
Further, as shown in FIG. 9, a throughhole 71 that opens in a direction substantially orthogonal to the rotation axis of thereel 63 is formed in the extendingportion 65 of thestorage device 61, and arotation knob 72 is formed in the throughhole 71. Has been inserted. The throughhole 71 has a substantially square opening, and a part of therotary knob 72 is exposed to the outside from each of the through holes 71. Therotary knob 72 has a substantially cylindrical shape, and a groove is carved on the outer periphery thereof, so that the endoscope operator can easily put a finger. Further, aknob hole 73 is formed on the central axis of therotary knob 72 so as to penetrate therotary knob 72. As shown in FIG. 12, the knob hole has a cross-sectional shape in which a part of the circumference is linear, and this shape is substantially equal to the outer shape of thefirst sheath 62. For this reason, when thestraight line portion 73a of theknob hole 73 and theflat surface 62a of thefirst sheath 62 are made to coincide with each other, thefirst sheath 62 is inserted into therotary knob 72 so that it cannot rotate around the axis but can advance and retreat in the axial direction. Can be made.
The throughhole 71 into which therotary knob 72 is inserted may be provided so as to open in parallel with the rotation axis of thereel 63.

次に、この処置具60の作用について説明する。
まず、図13に示すように、収容装置61の接続部66を挿入口54に係合させる。さらに、回転レバー68を回転させ、リール63に巻かれている挿入部5を繰り出して、先端処置部4及び挿入部5を処置具チャンネル53内に送り出す。先端処置部4が内視鏡50の先端から所定長だけ突出したら、回転レバー68を止める。
ここで、先端処置部4を内視鏡50に挿通させたときに、回転ノブ72とリール63との間に回転接続手段7が位置するように、第一シース62の長さ及び第一操作ワイヤ9の長さがそれぞれ設定されている。
Next, the operation of thetreatment tool 60 will be described.
First, as shown in FIG. 13, theconnection portion 66 of theaccommodation device 61 is engaged with theinsertion port 54. Further, therotary lever 68 is rotated, theinsertion portion 5 wound around thereel 63 is fed out, and thedistal treatment portion 4 and theinsertion portion 5 are fed into thetreatment instrument channel 53. When thedistal treatment section 4 protrudes from the distal end of theendoscope 50 by a predetermined length, therotation lever 68 is stopped.
Here, when thedistal treatment section 4 is inserted through theendoscope 50, the length of thefirst sheath 62 and the first operation are set so that therotary connecting means 7 is positioned between therotary knob 72 and thereel 63. The length of eachwire 9 is set.

先端処置部4を軸線回りに回転させるときには、回転ノブ72を指で回転させる。回転ノブ72のノブ孔73に係合する第一シース62が、回転ノブ72と共に回転し、第一シース62の先端に設けられている先端処置部4が軸線回りに回転する。また、これに伴い第一操作ワイヤ9も回転するが、回転接続手段7よりもリール63側の第二シース15及び第二操作ワイヤ20は回転しない。
この状態で、一対の鉗子片2を開閉させるときには、開閉操作部69のスライダ70をカセット64に向かって前進させる。第二操作ワイヤ20及び第一操作ワイヤ9が前進し、一対の鉗子片2が開く。
When rotating thedistal treatment section 4 about the axis, therotary knob 72 is rotated with a finger. Thefirst sheath 62 engaged with theknob hole 73 of therotation knob 72 rotates together with therotation knob 72, and thedistal treatment section 4 provided at the distal end of thefirst sheath 62 rotates about the axis. As a result, thefirst operation wire 9 also rotates, but thesecond sheath 15 and thesecond operation wire 20 on thereel 63 side relative to the rotation connecting means 7 do not rotate.
In this state, when opening and closing the pair offorceps pieces 2, theslider 70 of the opening /closing operation unit 69 is advanced toward thecassette 64. Thesecond operation wire 20 and thefirst operation wire 9 are advanced, and the pair offorceps pieces 2 are opened.

この実施形態では、収容装置61に異形のノブ孔73を有する回転ノブ72を設け、このノブ孔73に、外形を合わせた異形の第一シース62を挿通させ、回転ノブ72とリール63との間に回転接続手段7を配置したので、回転ノブ72を回転させることで先端処置部4を軸線回りに回転させることができる。したがって、処置時の回転操作が容易になる。
また、収容装置61に接続部66を設け、収容装置61を内視鏡50の挿入口54に接続できるようにしたので、処置具60の操作が容易になる。
In this embodiment, theaccommodating device 61 is provided with arotating knob 72 having adeformed knob hole 73, and a deformedfirst sheath 62 having an outer shape is inserted into theknob hole 73, so that the rotatingknob 72 and thereel 63 are connected. Since therotation connecting means 7 is disposed therebetween, thedistal treatment section 4 can be rotated around the axis by rotating therotary knob 72. Therefore, the rotation operation at the time of treatment becomes easy.
In addition, since theconnection device 66 is provided in thestorage device 61 so that thestorage device 61 can be connected to theinsertion port 54 of theendoscope 50, the operation of thetreatment instrument 60 is facilitated.

本発明の第三実施形態について図14乃至図16を参照して説明する。なお、前記各実施形態と同じ構成要素には同一の符号を付してある。また前記各実施形態と重複する説明は省略する。
図14に示すように、処置具80は、先端処置部4の基端部に挿入部81が接続されている。挿入部81は、密巻きコイルからなる短シース82を有し、短シース82の先端が先端処置部4に接続され、短シース82の基端部が接続部材83を介してチューブシース84に接続されている。チューブシース84は、可撓性を有し、その基端部は、回転接続手段7に接続されている。そして、チューブシース84及び短シース82からなる第一シース内には、第一操作ワイヤ9が進退自在に挿通されている。
また、挿入部81には、チューブシース84と平行に、長尺の板材86が設けられている。板材86は、その先端が接続部材83に固定され、その基端部が回転接続手段7の外環部8に固定される。図15に示すように、板材86は、チューブシース84から所定距離だけ離れた位置に設けられている。
A third embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same component as each said embodiment. Further, the description overlapping with each of the embodiments is omitted.
As shown in FIG. 14, thetreatment instrument 80 has aninsertion portion 81 connected to the proximal end portion of thedistal treatment portion 4. Theinsertion portion 81 has ashort sheath 82 formed of a densely wound coil, the distal end of theshort sheath 82 is connected to thedistal treatment section 4, and the proximal end portion of theshort sheath 82 is connected to thetube sheath 84 via theconnection member 83. Has been. Thetube sheath 84 has flexibility, and a base end portion thereof is connected to therotation connecting means 7. Thefirst operation wire 9 is inserted into the first sheath composed of thetube sheath 84 and theshort sheath 82 so as to freely advance and retract.
Theinsertion portion 81 is provided with along plate 86 in parallel with thetube sheath 84. Theplate member 86 has its distal end fixed to theconnection member 83 and its base end fixed to theouter ring portion 8 of the rotary connection means 7. As shown in FIG. 15, theplate material 86 is provided at a position away from thetube sheath 84 by a predetermined distance.

ここで、図16に示すように、回転ノブ87のノブ孔88は、挿入部81(図15参照)の形状に合わせて形成されている。すなわち、断面視で、ノブ孔88は、回転ノブ87の中心軸からオフセットされた位置に円形部89を有し、この円形部89から所定長だけ離れた位置に方形部90が設けられ、さらに両部分89,90を連通させる連通部91が形成されている。円形部89の径は、チューブシース84の外形に略等しく、方形部90は、板材86を挿通可能な形状になっている。  Here, as shown in FIG. 16, theknob hole 88 of therotary knob 87 is formed in accordance with the shape of the insertion portion 81 (see FIG. 15). That is, theknob hole 88 has acircular portion 89 at a position offset from the central axis of therotary knob 87 in a cross-sectional view, and arectangular portion 90 is provided at a position away from thecircular portion 89 by a predetermined length. Acommunication portion 91 is formed for communicating bothportions 89 and 90. The diameter of thecircular portion 89 is substantially equal to the outer shape of thetube sheath 84, and therectangular portion 90 has a shape that allows theplate material 86 to be inserted.

この実施形態の作用及び効果は、前記第二実施形態と同様である。第一シースに相当するチューブシース84を異形にする必要がないので、製造が容易である。  The operation and effects of this embodiment are the same as those of the second embodiment. Since it is not necessary to make thetube sheath 84 corresponding to the first sheath irregular, manufacturing is easy.

本発明の第四実施形態について図17乃至図19を参照して説明する。なお、前記各実施形態と同じ構成要素には同一の符号を付してある。また前記各実施形態と重複する説明は省略する。
図17に示すように、処置具100は、先端処置部としてバスケット101を備えている。バスケット101は、複数の弾性ワイヤ102を有し、各弾性ワイヤ102の基端部は、固定部材103によって束ねられ、操作伝達手段である第一操作部材104に固定されている。各弾性ワイヤ102の先端は、チップ105によって束ねられている。これら弾性ワイヤ102は、例えば、細いステンレス鋼線の単線又は撚り線からなり、第一シースであるチューブシース106から出ると籠状に拡開するように形成されている。
A fourth embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same component as each said embodiment. Further, the description overlapping with each of the embodiments is omitted.
As shown in FIG. 17, thetreatment instrument 100 includes abasket 101 as a distal treatment section. Thebasket 101 includes a plurality ofelastic wires 102, and the base end portions of theelastic wires 102 are bundled by a fixingmember 103 and fixed to afirst operation member 104 that is an operation transmission unit. The tip of eachelastic wire 102 is bundled by achip 105. Theseelastic wires 102 are made of, for example, a single wire or a stranded wire of a thin stainless steel wire, and are formed so as to expand in a bowl shape when coming out from thetube sheath 106 which is the first sheath.

処置具100の挿入部110は、バスケット101を収容可能な可撓性のチューブシース106を有している。チューブシース106の基端部は、第一回転接続手段111を介して第二シース112の先端部に接続されている。第一回転接続手段111は、前記回転接続手段7の外環部8のみを有している。つまり、チューブシース106と第2シース112のみが空転するようになっている。
図17から図19に示すように、第二シース112は、可撓性を有し、回転伝達性の高い素材及び形状から構成されている。図18に示すように、第二シース112は、円周の一部が切り取られ、平面112aが設けられている。また、第二シース112内には、回転規制部材113が取り付けられている。回転規制部材113によって、第二シース112内には細長の空間114が形成されている。そして、第二シース112の基端部は、収容装置61内で、第二回転接続手段115を介して第三シース116の先端部に接続されている。なお、第二回転接続手段115の構成及び位置は、前記回転接続手段7と同じになっている。第三シース116は、前記第一実施形態の第二シース15と同じ構成になっている。
Theinsertion portion 110 of thetreatment instrument 100 has aflexible tube sheath 106 that can accommodate thebasket 101. The proximal end portion of thetube sheath 106 is connected to the distal end portion of thesecond sheath 112 via the first rotation connecting means 111. The first rotation connecting means 111 has only theouter ring portion 8 of therotation connecting means 7. That is, only thetube sheath 106 and thesecond sheath 112 are idled.
As shown in FIGS. 17 to 19, thesecond sheath 112 is made of a material and a shape that are flexible and have high rotational transmission properties. As shown in FIG. 18, thesecond sheath 112 is partly cut off and provided with aflat surface 112a. Arotation restricting member 113 is attached in thesecond sheath 112. Anelongated space 114 is formed in thesecond sheath 112 by therotation restricting member 113. The proximal end portion of thesecond sheath 112 is connected to the distal end portion of thethird sheath 116 via the second rotational connection means 115 in theaccommodation device 61. The configuration and position of the second rotary connecting means 115 are the same as those of therotary connecting means 7. Thethird sheath 116 has the same configuration as thesecond sheath 15 of the first embodiment.

バスケット101に固定されている第一操作部材104は、チューブシース106内及び第二シース112内に進退自在に挿通され、第二回転接続手段115を介して第二操作ワイヤ20の先端部に接続されている。図18に示すように、第一操作部材104は、可撓性を有する板状のフープで、回転規制部材113により区画される細長の空間114内を進退自在に挿通できる大きさになっている。また、回転規制部材113により、第2シース112に対して回転が規制されている。  Thefirst operation member 104 fixed to thebasket 101 is inserted into thetube sheath 106 and thesecond sheath 112 so as to freely advance and retract, and is connected to the distal end portion of thesecond operation wire 20 via the second rotation connection means 115. Has been. As shown in FIG. 18, thefirst operation member 104 is a flexible plate-like hoop and has a size that allows thefirst operation member 104 to be inserted into theelongate space 114 defined by therotation restricting member 113 so as to freely advance and retract. . Further, the rotation of thesecond sheath 112 is restricted by therotation restricting member 113.

収容装置61は、内視鏡50に取付可能な接続部66を有し、延設部65には、回転ノブ72が挿入されている。そして、この処置具100が内視鏡50に挿通されたときには、第一回転接続手段111が回転ノブ72よりも先端側に位置し、第二回転接続手段115が回転ノブ72とリール63との間に位置するように、各シース106,112,116、及び第一操作部材104、第二操作ワイヤ20の長さが設定されている。  Theaccommodation device 61 has aconnection portion 66 that can be attached to theendoscope 50, and arotation knob 72 is inserted into theextension portion 65. When thetreatment instrument 100 is inserted into theendoscope 50, the first rotation connecting means 111 is positioned on the tip side of therotation knob 72, and the second rotation connecting means 115 is connected between therotation knob 72 and thereel 63. The lengths of thesheaths 106, 112, and 116, thefirst operation member 104, and thesecond operation wire 20 are set so as to be positioned between them.

次に、この処置具100の作用について説明する。
処置具100を内視鏡50に挿通させるときには、収容装置61の回転レバー68を用いる。
処置具100の先端部分、つまりバスケット101を軸線回りに回転させるときには、バスケット101をチューブシース106から突出させた状態で回転ノブ72を回転させる。回転ノブ72と共に第二シース112が回転するが、第一、第二回転接続手段111,115を介して接続されているチューブシース106及び第二操作ワイヤ20並びに第三シース116は、回転しない。一方、第二シース112内に挿通されている第一操作部材104は、回転規制部材113によって第二シース112と共に回転し、第一操作部材104の先端に固定されているバスケット101のみが軸線回りに回転する。
Next, the operation of thetreatment tool 100 will be described.
When thetreatment tool 100 is inserted through theendoscope 50, therotation lever 68 of thestorage device 61 is used.
When the distal end portion of thetreatment instrument 100, that is, thebasket 101 is rotated about the axis, therotation knob 72 is rotated with thebasket 101 protruding from the tube sheath. Although thesecond sheath 112 rotates together with therotation knob 72, thetube sheath 106, thesecond operation wire 20 and thethird sheath 116 connected via the first and second rotation connecting means 111 and 115 do not rotate. On the other hand, thefirst operation member 104 inserted into thesecond sheath 112 is rotated together with thesecond sheath 112 by therotation restricting member 113, and only thebasket 101 fixed to the tip of thefirst operation member 104 is rotated about the axis. Rotate to.

この実施形態によれば、回転規制部材113によって第二シース112に対して第一操作部材104を回転不能にし、回転ノブ72を回転させることで第二シース112を介して第一操作部材104を回転させるようにしたので、手元側の操作でバスケット101を回転させることができる。
さらに、第一回転接続手段111によって、第二シース112が回転してもチューブシース106は回転しないようにした。チューブシース106を回転させるためには、内視鏡50の処置具チャンネル53との間に生じる摩擦力に抗する大きな力が必要になるが、本実施形態ではチューブシース106を回転させないので、このような大きな力を与えなくてもバスケット101を回転させることができる。さらに、第二回転接続手段115によって、第二シース112が回転しても第三シース116及び第二操作ワイヤ20は回転しないようにしたので、バスケット101の回転に必要な力を小さくできる。
According to this embodiment, thefirst operation member 104 cannot be rotated with respect to thesecond sheath 112 by therotation restricting member 113, and thefirst operation member 104 is moved via thesecond sheath 112 by rotating therotation knob 72. Since it is rotated, thebasket 101 can be rotated by the operation on the hand side.
Further, thetube sheath 106 is prevented from rotating by the first rotation connecting means 111 even when thesecond sheath 112 is rotated. In order to rotate thetube sheath 106, a large force against the frictional force generated between theendoscope 50 and thetreatment instrument channel 53 is required. However, in this embodiment, thetube sheath 106 is not rotated. Thebasket 101 can be rotated without applying such a large force. Further, the second rotation connecting means 115 prevents thethird sheath 116 and thesecond operation wire 20 from rotating even when thesecond sheath 112 rotates, so that the force necessary for the rotation of thebasket 101 can be reduced.

ここで、回転ノブ72に、図16に示すようなノブ孔88を設け、第二シース112を円形にすると共に、第二シース112に沿って長尺の板材86を引き回しても良い。
また、この処置具100の収容装置61は、図1に示すような収容装置21であっても良い。この場合には、固定手段24によって内視鏡50に固定されると共に、挿入部110を手動で挿抜し、バスケット101の回転も第一回転接続手段111又は第二シース112を掴んで手動で行う。さらに、図17に示す収容装置61において、接続部66の代わりに固定手段24(図1参照)を設けても良い。
Here, therotary knob 72 may be provided with aknob hole 88 as shown in FIG. 16 to make thesecond sheath 112 circular, and thelong plate member 86 may be routed along thesecond sheath 112.
Further, thestorage device 61 of thetreatment instrument 100 may be astorage device 21 as shown in FIG. In this case, while being fixed to theendoscope 50 by the fixing means 24, theinsertion portion 110 is manually inserted and removed, and thebasket 101 is also rotated manually by grasping the first rotation connecting means 111 or thesecond sheath 112. . Furthermore, in theaccommodation device 61 shown in FIG. 17, a fixing means 24 (see FIG. 1) may be provided instead of theconnection portion 66.

なお、本発明は、前記各実施形態に限定されずに広く応用することができる。
例えば、図1に示す収容装置21に回転ノブ72を設けても良い。また、図8又は図17に示す延設部65をカセット64に対して回転自在に設け、延設部65とシース62,112とを供回りするように係合させても良い。
また、処置具1,60,80,100は、生検鉗子など、軸線回りに回転させることで、処置を行う生体に対して位置決めを行う必要がある処置具であれば如何なる処置具でも良い。
The present invention can be widely applied without being limited to the above embodiments.
For example, you may provide therotation knob 72 in theaccommodating apparatus 21 shown in FIG. Further, the extendingportion 65 shown in FIG. 8 or 17 may be provided so as to be rotatable with respect to thecassette 64, and the extendingportion 65 and thesheaths 62 and 112 may be engaged with each other.
Further, thetreatment tools 1, 60, 80, 100 may be any treatment tools as long as the treatment tools need to be positioned with respect to a living body to be treated by rotating around an axis such as biopsy forceps.

本発明の実施形態における処置具の構成を示す図である。It is a figure which shows the structure of the treatment tool in embodiment of this invention.回転接続手段の構成を示す断面図である。It is sectional drawing which shows the structure of a rotation connection means.処置具の正面図である。It is a front view of a treatment tool.図1のIV‐IV線に沿う断面図である。It is sectional drawing which follows the IV-IV line of FIG.操作部を接続した状態を説明する図である。It is a figure explaining the state which connected the operation part.操作部を示す斜視図である。It is a perspective view which shows an operation part.処置具の使用状態を説明する図である。It is a figure explaining the use condition of a treatment tool.本発明の実施形態における処置具の構成を示す図である。It is a figure which shows the structure of the treatment tool in embodiment of this invention.収容装置の一部拡大斜視図である。It is a partially expanded perspective view of a storage device.図9のA矢視図である。It is A arrow directional view of FIG.収容装置の背面図である。It is a rear view of a storage device.回転ノブの断面図である。It is sectional drawing of a rotation knob.処置具の使用状態を説明する図である。It is a figure explaining the use condition of a treatment tool.本発明の実施形態における処置具の構成を示す図であって、挿入部の先端部分を示す図である。It is a figure which shows the structure of the treatment tool in embodiment of this invention, Comprising: It is a figure which shows the front-end | tip part of an insertion part.図14のXV‐XV線に沿った断面図である。It is sectional drawing along the XV-XV line | wire of FIG.回転ノブの断面図である。It is sectional drawing of a rotation knob.本発明の実施形態における処置具の構成を示す図である。It is a figure which shows the structure of the treatment tool in embodiment of this invention.挿入部の一部拡大断面図である。It is a partially expanded sectional view of an insertion part.図18のIXX‐IXX線に沿った断面図である。FIG. 19 is a cross-sectional view taken along line IXX-IXX in FIG. 18.

符号の説明Explanation of symbols

1,60,80,100 処置具(内視鏡用処置具)
4 先端処置部
6,62 第一シース
7 回転接続手段
9 第一操作ワイヤ(操作伝達手段、チャンネルに挿通された部分)
20 第二操作ワイヤ(操作伝達手段、巻取手段に巻き取れている部分)
21,61 収容装置
22,64 カセット
23,63 リール(巻取手段)
24 固定手段
28 開口部(開口)
53 処置具チャンネル
54 挿入口
55 取付部
72 回転ノブ
101 バスケット(処置部)
106 チューブシース(第一の部分)
111 第一回転接続手段
112 第二シース(第二の部分)
115 第二回転接続手段
116 第三シース(第三の部分)

1,60,80,100 Treatment tool (endoscopic treatment tool)
4distal treatment section 6, 62first sheath 7 rotation connecting means 9 first operation wire (operation transmitting means, part inserted through channel)
20 Second operation wire (operation transmission means, part wound around winding means)
21, 61Storage device 22, 64Cassette 23, 63 Reel (winding means)
24 Fixing means 28 Opening (opening)
53treatment instrument channel 54insertion port 55attachment part 72rotation knob 101 basket (treatment part)
106 Tube sheath (first part)
111 1st rotation connection means 112 2nd sheath (2nd part)
115 Second rotary connecting means 116 Third sheath (third portion)

Claims (7)

Translated fromJapanese
内視鏡のチャンネルに挿通されるシースと、
前記シースの先端に設けられ、生体に対して処置を行う処置部と、
前記処置部を駆動させるために前記シースに挿通される操作伝達手段と、
前記操作伝達手段及び前記シースを巻き取る巻取手段と、
前記巻取手段から繰り出した前記シースを前記チャンネルに挿通させたときに、前記操作伝達手段において前記チャンネルに挿通された部分と前記巻取手段に巻き取れている部分との間を回転自在に接続する回転接続手段と、
を備えることを特徴とする内視鏡用処置具。
A sheath inserted through the channel of the endoscope;
A treatment section provided at the distal end of the sheath and performing treatment on a living body;
An operation transmitting means inserted through the sheath to drive the treatment section;
A winding means for winding the operation transmitting means and the sheath;
When the sheath fed out from the winding means is inserted into the channel, the operation transmission means is rotatably connected between a portion inserted through the channel and a portion wound around the winding means. Rotating connection means to
An endoscopic treatment instrument comprising:
前記回転接続手段は、前記シースを前記チャンネルに挿通させたときに、前記シースにおいて前記チャンネルに挿通された部分と前記巻取手段に巻き取られている部分との間を回転自在に接続することを特徴とする請求項1に記載の内視鏡用処置具。  The rotation connecting means rotatably connects a portion of the sheath inserted through the channel and a portion wound up by the winding means when the sheath is inserted through the channel. The endoscopic treatment tool according to claim 1. 前記シースは、前記チャンネルに挿通される第一の部分と、前記第一の部分に一端が回転自在に接続される第二の部分と、前記第二の部分の他端に前記回転接続手段を介して接続される第三の部分とを有し、前記第二の部分は、前記操作伝達手段の回転自在な部分に供回りすべく係合されていることを特徴とする請求項1に記載の内視鏡用処置具。  The sheath includes a first part inserted through the channel, a second part having one end rotatably connected to the first part, and the rotational connection means at the other end of the second part. The second portion is engaged with the rotatable portion of the operation transmitting means so as to be rotated. Endoscopic treatment tool. 前記巻取手段を回転自在に支持した収容装置をさらに有することを特徴とする請求項1から請求項3のいずれか一項に記載の内視鏡用処置具。  The endoscopic treatment instrument according to any one of claims 1 to 3, further comprising a storage device that rotatably supports the winding unit. 前記収容装置には、前記操作伝達手段の回転自在な部分を回転させる回転ノブが設けられていることを特徴とする請求項4に記載の内視鏡用処置具。  The endoscopic treatment tool according to claim 4, wherein the accommodating device is provided with a rotation knob for rotating a rotatable portion of the operation transmitting means. 前記回転接続手段は、前記収容装置の開口から繰り出された前記シースを前記チャンネルに挿通させたときに、前記チャンネルの挿入口から前記開口までの間にくるように配設されていることを特徴とする請求項4に記載の内視鏡用処置具。  The rotation connecting means is disposed so as to come between the insertion opening of the channel and the opening when the sheath fed out from the opening of the accommodating device is inserted into the channel. The endoscope treatment tool according to claim 4. 請求項1から請求項5のいずれか一項に記載の内視鏡用処置具の前記巻取手段を支持する取付部が設けられた前記内視鏡を備えることを特徴とする内視鏡システム。

An endoscope system comprising the endoscope provided with an attachment portion that supports the winding means of the treatment instrument for an endoscope according to any one of claims 1 to 5. .

JP2004147506A2004-05-182004-05-18Treatment instrument for endoscope, and endoscopic systemWithdrawnJP2005328882A (en)

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US12089841B2 (en)2021-10-282024-09-17Cilag CmbH InternationalStaple cartridge identification systems
US12432790B2 (en)2021-10-282025-09-30Cilag Gmbh InternationalMethod and device for transmitting UART communications over a security short range wireless communication
US12440213B2 (en)2022-12-052025-10-14Cilag Gmbh InternationalSurgical instrument having a power control circuit
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