JPH0515915U - Grasping forceps for endoscope - Google Patents
Grasping forceps for endoscopeInfo
- Publication number
- JPH0515915U JPH0515915U JP6501491U JP6501491U JPH0515915U JP H0515915 U JPH0515915 U JP H0515915U JP 6501491 U JP6501491 U JP 6501491U JP 6501491 U JP6501491 U JP 6501491U JP H0515915 U JPH0515915 U JP H0515915U
- Authority
- JP
- Japan
- Prior art keywords
- grasping
- endoscope
- distal end
- sheath
- elastic
- 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.)
- Withdrawn
Links
Abstract
(57)【要約】
【目的】外径を細くすると共に、確実に体腔内の異物を
把持回収できる内視鏡用把持鉗子を提供すること。
【構成】シ−ス１と、このシ−ス１内に挿通された操作
ワイヤ３と、シ−ス１の先端に設けられ、弾性把持部材
５で開閉自在に構成された先端把持部６とからなる内視
鏡用把持鉗子において、弾性把持部材５の断面積を先端
側に向けて徐々に大きくなるように形成したことを特徴
としている。
(57) [Abstract] [Purpose] To provide a grasping forceps for an endoscope which has a small outer diameter and is capable of reliably grasping and collecting a foreign matter in a body cavity. [Structure] A sheath 1, an operation wire 3 inserted into the sheath 1, and a distal end grip portion 6 provided at the distal end of the sheath 1 and configured to be opened and closed by an elastic grip member 5. In the endoscopic grasping forceps, the elastic grasping member 5 is characterized in that the sectional area of the elastic grasping member 5 is gradually increased toward the distal end side.
Description
【０００１】[0001]
本考案は経内視鏡的に使用する内視鏡用把持鉗子に関する。 The present invention relates to a grasping forceps for an endoscope which is used transendoscopically.
【０００２】[0002]
従来、経内視鏡的に使用する内視鏡用把持鉗子は、手元操作部とシ−ス先端に 設けられた把持部とを有し、手元操作部を操作することにより把持部を開閉する ように構成されている。例えば、実開昭５４−６３９９２号および実開平２−１ １６４１２号公報には、この種の把持鉗子が示されている。 Conventionally, a grasping forceps for an endoscope which is used transendoscopically has a hand operation part and a grip part provided at the distal end of the sheath, and the grip part is opened and closed by operating the hand operation part. Is configured. For example, Japanese Utility Model Laid-Open No. 54-63992 and Japanese Utility Model Laid-Open No. 2-116412 disclose gripping forceps of this type.
【０００３】 図６および図７は、３本の弾性把持部材ａ（２本のみ図示する）を備えた従来 の把持鉗子の先端要部を示したものである。この把持鉗子においてシ−スｃの先 端には先端カバ−ｆが装着され、この先端カバ−ｆは、弾性把持部材ａが体腔内 に脱落するのを防止するピンｂを備えている。また、シ−スｃの基端側に延出し ている操作ワイヤｄは、その先端が連結管ｅによって弾性把持部材ａと結合され ている。そして、この弾性把持部材ａは一定の線径を有する弾性線材から形成さ れている。FIG. 6 and FIG. 7 show the main part of the tip of a conventional gripping forceps provided with three elastic gripping members a (only two are shown). In this gripping forceps, a tip cover f is attached to the front end of the sheath c, and this tip cover f is provided with a pin b for preventing the elastic gripping member a from falling into the body cavity. Further, the operation wire d extending to the proximal end side of the sheath c is connected at its distal end to the elastic gripping member a by a connecting pipe e. The elastic gripping member a is made of an elastic wire material having a constant wire diameter.
【０００４】[0004]
上述のように従来の把持鉗子では、把持部材が一定の線径を有する弾性線材か ら形成されているので、把持鉗子自体を細径化する場合に把持部材ａも細径化さ れる。従って、図８に示すように体腔内の異物を把持する際の把持力が低下し、 確実に異物を回収することができないという問題がある。 As described above, in the conventional grasping forceps, since the grasping member is formed of the elastic wire having a constant wire diameter, the grasping member a is also reduced in diameter when the grasping forceps itself is reduced in diameter. Therefore, as shown in FIG. 8, there is a problem that the gripping force for gripping the foreign matter in the body cavity is reduced, and the foreign matter cannot be reliably collected.
【０００５】 本考案は上記課題に着目してなされたものであり、その目的は外径を細くする と共に、確実に体腔内の異物を把持回収できる内視鏡用把持鉗子を提供すること にある。The present invention has been made in view of the above problems, and an object thereof is to provide a grasping forceps for an endoscope which has a small outer diameter and is capable of reliably grasping and collecting a foreign matter in a body cavity. ..
【０００６】[0006]
本考案は、シ−スと、このシ−ス内に挿通された操作ワイヤと、前記シ−スの 先端に設けられ、弾性把持部材で開閉自在に構成された先端把持部とからなる内 視鏡用把持鉗子において、前記弾性把持部材の断面積を先端側に向けて徐々に大 きく形成したことを特徴としている。 従って、上記弾性把持部材によって体腔内の異物が確実に把持される。 The present invention is an internal view including a sheath, an operation wire inserted in the sheath, and a distal end grip portion provided at the distal end of the sheath and configured to be openable / closable by an elastic gripping member. In the grasping forceps for a mirror, the elastic grasping member is characterized in that the cross-sectional area is gradually increased toward the distal end side. Therefore, the elastic gripping member reliably grips the foreign matter in the body cavity.
【０００７】[0007]
以下図面を参照しながら本考案の実施例について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
【０００８】 図１ないし図３は、本考案の第１実施例を示している。この把持鉗子は可撓性 のシ−ス１を有し、このシ−ス１は密巻きコイルで形成されている。シ−ス１の 先端には、金属製で筒状の先端カバ−２が取着固定されている。そして、シ−ス １には操作ワイヤ３が挿通され、この操作ワイヤ３の先端には、３本の弾性把持 部材５（２本のみ図示する）が取着されている。この弾性把持部材５は３本に限 らず、対象物を把持しやすい本数設ければよい。1 to 3 show a first embodiment of the present invention. This grasping forceps has a flexible sheath 1, and this sheath 1 is formed of a tightly wound coil. At the front end of the sheath 1, a metal-made tubular front end cover-2 is attached and fixed. An operating wire 3 is inserted through the sheath 1, and three elastic gripping members 5 (only two are shown) are attached to the tip of the operating wire 3. The number of the elastic gripping members 5 is not limited to three, and the number of elastic gripping members 5 may be set so as to easily grip the object.
【０００９】 上記弾性把持部材５は、それぞれ弾性線材からなり、各弾性線材の一端が連結 管４内で束ねられてロ−付けされるとともに、操作ワイヤ３の先端に連結されて いる。そして、操作ワイヤ３は、シ−ス１内を通じて手元側に導かれ、図示しな い操作部によって押し引き操作可能に構成されている。Each of the elastic gripping members 5 is made of an elastic wire, and one end of each elastic wire is bundled in the connecting tube 4 to be attached to the end of the operation wire 3. The operation wire 3 is guided to the hand side through the inside of the sheath 1 and can be pushed and pulled by an operation unit (not shown).
【００１０】 各弾性把持部材５の先端側は、図２に示すように湾曲形成され、図１に示すよ うに先端カバ−２から突出したときに拡開し、３本の弾性把持部材の先端間の間 隔が増大する。さらに、各弾性把持部材５は先端側に向って断面積が増すように 形成され、その先端部は内側に屈曲されて爪８を形成している。 上記先端カバ−２にはピン７が設けられ、前進する各弾性把持部材５は、ピン ７により導出する向きが案内規制される。 次に、本実施例に係わる内視鏡用把持鉗子の作用について説明する。The tip end side of each elastic gripping member 5 is curved as shown in FIG. 2, and expands when protruding from the tip end cover-2 as shown in FIG. The interval increases. Further, each elastic gripping member 5 is formed so that the cross-sectional area increases toward the front end side, and the front end portion is bent inward to form the claw 8. The tip cover-2 is provided with a pin 7, and each of the advancing elastic gripping members 5 is guided and regulated by a pin 7. Next, the action of the endoscopic grasping forceps according to the present embodiment will be described.
【００１１】 この把持鉗子を使用する場合、内視鏡の先端部を体腔内に導入した後、内視鏡 の挿通チャンネルを通じて把持鉗子の先端部を体腔内に導入する。導入時には、 操作ワイヤ３を手元側に引き、図３に示すように各弾性把持部材５を先端カバ− ２及びシ−ス１内に引込む。その結果、先端把持部６が完全に閉じるとともに、 先端カバ−２及びシ−ス１の内側に引込まれ、外側には露出しない。従って、こ の把持鉗子を内視鏡の挿通チャンネルを通じて体腔内に導入する際、先端把持部 ６が挿通チャンネルの内面に引っ掛かり、傷付けることがない。When using this grasping forceps, the tip of the endoscope is introduced into the body cavity and then the tip of the grasping forceps is introduced into the body cavity through the insertion channel of the endoscope. At the time of introduction, the operation wire 3 is pulled toward the hand side, and as shown in FIG. 3, each elastic gripping member 5 is pulled into the tip cover 2 and the sheath 1. As a result, the tip grip portion 6 is completely closed, and the tip grip portion 6 is drawn inside the tip cover-2 and the sheath 1 and is not exposed to the outside. Therefore, when the grasping forceps are introduced into the body cavity through the insertion channel of the endoscope, the tip grasping portion 6 does not get caught on the inner surface of the insertion channel and is not damaged.
【００１２】 次に、内視鏡を操作して体腔内に挿入した把持鉗子の先端部を回収すべき異物 等に近付ける。その後、操作ワイヤ３を押し進めて各弾性把持部材５を押し出し 、図１で示すように先端把持部６を拡開させる。そして、拡開した先端把持部６ を回収すべき異物に誘導し、その内部に取り込む。ついで操作ワイヤ３を手元側 に引くことにより先端把持部６を閉じ、爪８によって異物を把持する。最後に、 この把持状態を維持しながら内視鏡とともに把持鉗子を体腔外に取り出す。Next, the endoscope is operated to bring the tip of the grasping forceps inserted into the body cavity close to a foreign substance or the like to be collected. After that, the operation wire 3 is pushed forward to push out the elastic gripping members 5, and the tip grip portion 6 is expanded as shown in FIG. Then, the expanded tip grip portion 6 is guided to the foreign matter to be collected and taken into the inside thereof. Then, the operation wire 3 is pulled toward the hand side to close the tip grip portion 6, and the nail 8 grips the foreign matter. Finally, the gripping forceps is taken out of the body cavity together with the endoscope while maintaining this gripped state.
【００１３】 上記のように構成した把持鉗子では、各弾性把持部材を先端側に向って線径が 増すように形成しているので、異物を把持する力が増大し、確実な異物の把持と 回収を行うことができる。 図４および図５は、本考案の第２実施例を示している。In the grasping forceps configured as described above, since each elastic grasping member is formed so that the wire diameter increases toward the distal end side, the force for grasping a foreign substance is increased, and the grasping of the foreign substance is surely performed. Recovery can be performed. 4 and 5 show a second embodiment of the present invention.
【００１４】 この第２実施例では、第１実施例におけるピン７と連結管４の代わりに、軸方 向に貫通する複数の通孔９ａを備えた可動子９が操作ワイヤ３の先端に取付固定 され、各弾性把持部材５の基端部が可動子９の通孔９ａを通って先端カバ−２に 取付け固定されている。その他の構成は第１実施例と同様である。In the second embodiment, instead of the pin 7 and the connecting pipe 4 in the first embodiment, a mover 9 having a plurality of through holes 9a penetrating in the axial direction is attached to the tip of the operation wire 3. The elastic gripping member 5 is fixed, and the base end portion of each elastic gripping member 5 is attached and fixed to the tip end cover-2 through the through hole 9a of the mover 9. The other structure is similar to that of the first embodiment.
【００１５】 この第２実施例に係わる把持鉗子を使用する場合、内視鏡の先端部を体腔内に 導入した後、内視鏡の挿通チャンネルを通じて把持鉗子の先端部を体腔内に導入 する。導入時には、操作ワイヤ３を先端側に押し、図５に示すように可動子９を 先端側に移動させる。その結果、弾性把持部材５は、可動子９によって先端カバ −２及びシ−ス１より径方向に突出しないように規制される。また、可動子９の 各縁部は滑らかに加工されているので、内視鏡の挿通チャンネルを通じて挿入す る時に、挿通チャンネルの内面を傷付けることはない。In the case of using the grasping forceps according to the second embodiment, after introducing the tip portion of the endoscope into the body cavity, the tip portion of the grasping forceps is introduced into the body cavity through the insertion channel of the endoscope. At the time of introduction, the operation wire 3 is pushed to the tip side, and the mover 9 is moved to the tip side as shown in FIG. As a result, the elastic gripping member 5 is regulated by the mover 9 so as not to project in the radial direction from the tip end cover-2 and the case 1. Further, since each edge of the mover 9 is smoothly processed, the inner surface of the insertion channel is not damaged when it is inserted through the insertion channel of the endoscope.
【００１６】 次に、内視鏡を操作して体腔内に挿入した把持鉗子の先端部を回収すべき異物 に近付ける。その後、操作ワイヤ３を手元側に引き、図４に示すように先端把持 部６を拡開する。そして、拡開した先端把持部６を回収すべき異物に誘導し、異 物を内部に取り込む。ついで操作ワイヤ３を先端側に押すことにより、先端把持 部６を閉じて爪８により異物を把持する。最後に、把持状態を維持しながら内視 鏡と共に把持鉗子を体腔外に取り出す。Next, the endoscope is operated to bring the tip of the grasping forceps inserted into the body cavity close to the foreign matter to be collected. Then, the operation wire 3 is pulled toward the hand side, and the tip grip portion 6 is expanded as shown in FIG. Then, the expanded tip grip portion 6 is guided to the foreign matter to be collected, and the foreign matter is taken inside. Then, by pushing the operation wire 3 toward the tip side, the tip gripping portion 6 is closed and the claw 8 grips the foreign matter. Finally, the grasping forceps is taken out of the body cavity together with the endoscope while maintaining the grasped state.
【００１７】 第２実施例に係わる把持鉗子でも、各弾性把持部材を先端側に向って線径が増 すように形成しているので、異物を把持する力が増大し、確実な異物の把持と回 収を行うことができる。Also in the gripping forceps according to the second embodiment, since each elastic gripping member is formed so that the wire diameter increases toward the distal end side, the force for gripping the foreign matter is increased, and the foreign matter is reliably gripped. And can be collected.
【００１８】[0018]
以上説明したように、本考案の内視鏡用把持鉗子では、各弾性把持部材を先端 側に向って線径が増すように形成しているので、把持力が増大して従来よりも確 実な異物の把持回収を行うことができる。 As described above, in the endoscopic grasping forceps of the present invention, since each elastic grasping member is formed so that the wire diameter increases toward the distal end side, the grasping force is increased and it is more reliable than the conventional one. It is possible to grasp and collect various foreign substances.
【図１】本考案の第１実施例に係わる内視鏡用把持鉗子
の開成状態を示す先端側の縦断面図である。FIG. 1 is a vertical cross-sectional view of a distal end side showing an open state of a grasping forceps for an endoscope according to a first embodiment of the present invention.
【図２】図１に示す弾性把持部材の斜視図である。FIG. 2 is a perspective view of the elastic gripping member shown in FIG.
【図３】第１実施例に係わる内視鏡用把持鉗子の閉成状
態を示す先端側の縦断面図である。FIG. 3 is a longitudinal cross-sectional view of the distal end side showing the closed state of the endoscopic grasping forceps according to the first embodiment.
【図４】本考案の第２実施例に係わる内視鏡用把持鉗子
の開成状態を示す先端側を一部断面した側面図である。FIG. 4 is a side view, partly in section, of the distal end side showing an open state of the grasping forceps for an endoscope according to the second embodiment of the present invention.
【図５】本考案の第２実施例に係わる内視鏡用把持鉗子
の閉成状態を示す先端側を一部断面した側面図である。FIG. 5 is a side view, partly in section, of the distal end side showing the closed state of the grasping forceps for an endoscope according to the second embodiment of the present invention.
【図６】従来の内視鏡用把持鉗子の先端側を一部断面し
た側面図である。FIG. 6 is a side view in which a distal end side of a conventional endoscopic grasping forceps is partially sectioned.
【図７】従来の内視鏡用把持鉗子の先端側を一部断面し
た側面図である。FIG. 7 is a side view in which the distal end side of a conventional endoscopic grasping forceps is partially sectioned.
【図８】従来の内視鏡用把持鉗子によって異物を把持し
た状態を示す先端部の側面図である。FIG. 8 is a side view of the distal end portion showing a state in which a foreign object is grasped by a conventional endoscope grasping forceps.
１…シ−ス、３…操作ワイヤ、５…弾性把持部材、６…
先端把持部。DESCRIPTION OF SYMBOLS 1 ... Siece, 3 ... Operation wire, 5 ... Elastic holding member, 6 ...
Tip grip.
フロントページの続き (72)考案者 渡辺 勝司 東京都渋谷区幡ケ谷２丁目43番２号 オリ ンパス光学工業株式会社内 (72)考案者 神原 浩司 東京都渋谷区幡ケ谷２丁目43番２号 オリ ンパス光学工業株式会社内 (72)考案者 斉藤 達也 東京都渋谷区幡ケ谷２丁目43番２号 オリ ンパス光学工業株式会社内 (72)考案者 中村 剛明 東京都渋谷区幡ケ谷２丁目43番２号 オリ ンパス光学工業株式会社内Front page continuation (72) Inventor Katsushi Watanabe 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Koji Kamihara 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Within Kogyo Co., Ltd. (72) Tatsuya Saito 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Industry Co., Ltd. (72) Takeaki Nakamura 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Industry Co., Ltd.
Claims (1)
作ワイヤと、前記シ−スの先端に設けられ、弾性把持部
材で開閉自在に構成された先端把持部とからなる内視鏡
用把持鉗子において、前記弾性把持部材の断面積を先端
側に向けて徐々に大きくなるように形成したことを特徴
とする内視鏡用把持鉗子。1. An inner structure comprising a sheath, an operation wire inserted through the sheath, and a distal end grip portion provided at the distal end of the sheath and configured to be openable and closable by an elastic grip member. In the grasping forceps for an endoscope, the grasping forceps for an endoscope is characterized in that the elastic grasping member is formed such that a cross-sectional area thereof is gradually increased toward a distal end side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6501491U JPH0515915U (en) | 1991-08-16 | 1991-08-16 | Grasping forceps for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6501491U JPH0515915U (en) | 1991-08-16 | 1991-08-16 | Grasping forceps for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0515915U true JPH0515915U (en) | 1993-03-02 |
Family
ID=13274703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6501491U Withdrawn JPH0515915U (en) | 1991-08-16 | 1991-08-16 | Grasping forceps for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0515915U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4998533U (en) * | 1972-12-14 | 1974-08-24 | ||
| JPS5563345U (en) * | 1978-10-21 | 1980-04-30 | ||
| US9095932B2 (en) | 2006-12-13 | 2015-08-04 | H.C. Starck Inc. | Methods of joining metallic protective layers |
-
1991
- 1991-08-16 JP JP6501491U patent/JPH0515915U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4998533U (en) * | 1972-12-14 | 1974-08-24 | ||
| JPS5563345U (en) * | 1978-10-21 | 1980-04-30 | ||
| US9095932B2 (en) | 2006-12-13 | 2015-08-04 | H.C. Starck Inc. | Methods of joining metallic protective layers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19951102 |