JPH0318815U - - Google Patents
Info
- Publication number
- JPH0318815U JPH0318815U JP7940889U JP7940889U JPH0318815U JP H0318815 U JPH0318815 U JP H0318815U JP 7940889 U JP7940889 U JP 7940889U JP 7940889 U JP7940889 U JP 7940889U JP H0318815 U JPH0318815 U JP H0318815U
- Authority
- JP
- Japan
- Prior art keywords
- mantle tube
- tube
- endoscopic treatment
- treatment instrument
- protruding
- 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.)
- Pending
Links
- 238000012277 endoscopic treatment Methods 0.000 claims description 7
- 238000011282 treatment Methods 0.000 description 1
Description
第１図は、本考案の第１実施例を示す内視鏡用
処置具の断面図、第２図は、本考案の第２実施例
を示す内視鏡用処置具の先端部の要部断面図、第
３図Ａ，Ｂは、従来の内視鏡用処置具の一例を示
したものであつて、外套管の先端より把持部が突
出している状態と、外套管内に把持部が収納され
ている状態をそれぞれ示す断面図、第４図Ａ，Ｂ
は、更に従来の内視鏡用処置具の他の例を示した
ものであつて、外套管の先端より把持部が突出し
ている状態と、外套管内に把持部が収納されてい
る状態をそれぞれ示す断面図である。
１０，１０Ａ……内視鏡用処置具、１，１１…
…外套管、２，１２……操作ワイヤ、３，１３…
…把持部、４，１４……折返し突出部、１５，１
８……拡開開始部、１６……操作部、１７……ス
ライダ。
FIG. 1 is a cross-sectional view of an endoscopic treatment instrument according to a first embodiment of the present invention, and FIG. 2 is a main part of the distal end of an endoscopic treatment instrument according to a second embodiment of the present invention. The cross-sectional views and FIGS. 3A and 3B show an example of a conventional endoscopic treatment instrument, with the grip protruding from the tip of the cannula, and the grip part retracted into the cannula. Cross-sectional views showing the respective states, Figures 4A and B
2 shows other examples of conventional endoscopic treatment tools, one in which the grip protrudes from the tip of the cannula, and the other in which the grip is housed within the cannula, respectively. FIG. 10,10A ...Endoscope treatment instrument, 1,11...
... Mantle tube, 2, 12 ... Operation wire, 3, 13 ...
...Gripping part, 4, 14...Folding protrusion, 15, 1
8... Expansion start section, 16... Operation section, 17... Slider.
Claims (1)
ヤと、 この操作ワイヤの先端部に設けられていて、先
端に折返し突出部を有し上記外套管より突出した
とき、自己の弾性により拡開ループを形成する把
持部と、 上記操作ワイヤを上記外套管に対して進退させ
、上記把持部を外套管先端部より出入させる手段
と、 を具備した内視鏡用処置具において、 上記把持部の少なくとも上記折返し突出部の近
傍に、外套管内への収納時には同管内面との接触
を減じ、外套管内からの突出時にはループに圧縮
力を加えない予備角部からなる拡開開始部を設け
たきことを特徴とする内視鏡用処置具。[Scope of Claim for Utility Model Registration] A flexible mantle tube; an operating wire inserted into the mantle tube so as to be freely advanced and retractable; a gripping portion that forms an expanded loop due to its own elasticity when protruding from the mantle tube; and means for advancing and retracting the operating wire with respect to the mantle tube, and causing the gripping portion to move in and out from the tip of the mantle tube. In the endoscopic treatment instrument equipped with the above-mentioned endoscopic treatment tool, at least near the folded protrusion of the gripping part, when stored in the mantle tube, contact with the inner surface of the tube is reduced, and when protruding from the mantle tube, compressive force is applied to the loop. 1. An endoscopic treatment instrument characterized by being provided with an expansion start section consisting of a preliminary corner section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7940889U JPH0318815U (en) | 1989-07-05 | 1989-07-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7940889U JPH0318815U (en) | 1989-07-05 | 1989-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0318815U true JPH0318815U (en) | 1991-02-25 |
Family
ID=31623544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7940889U Pending JPH0318815U (en) | 1989-07-05 | 1989-07-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001070314A (en) * | 1999-09-01 | 2001-03-21 | Asahi Optical Co Ltd | Snare for endoscope |
-
1989
- 1989-07-05 JP JP7940889U patent/JPH0318815U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001070314A (en) * | 1999-09-01 | 2001-03-21 | Asahi Optical Co Ltd | Snare for endoscope |
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