JPH02141424U

JPH02141424U -

Info

Publication number: JPH02141424U
Application number: JP5123589U
Authority: JP
Priority date: 1989-04-28
Filing date: 1989-04-28
Publication date: 1990-11-28

Description

[Brief explanation of the drawing]

第１図乃至第５図はこの考案の第１の実施例を
示すもので、第１図は内視鏡用処置具の要部構成
を示す縦断面図、第２図はワイヤ継手とパンタグ
ラフ機構との間の連結部を示す側面図、第３図は
支持ヘツドとパンタグラフ機構との接合部を示す
縦断面図、第４図は針の取付け状態を示す平面図
、第５図は第４図のＶ−Ｖ線断面図、第６図は第
２の実施例を示す要部の縦断面図、第７図は第３
の実施例を示す要部の縦断面図、第８図は第４の
実施例を示す要部の縦断面図、第９図乃至第１２
図は従来例を示すもので、第９図は内視鏡用処置
具の要部構成を示す縦断面図、第１０図はパンタ
グラフ機構を示す平面図、第１１図はワイヤ継手
とパンタグラフ機構との間の連結部を示す側面図
、第１２図は支持ヘツドとパンタグラフ機構との
接合部を示す縦断面図である。２ａ，２ｂ……生検カツプ（処置部構成部材）
、３……操作ワイヤ、６ａ，６ｂ……基端側アー
ム部、９……回動ピン、１３ａ，１３ｂ……操作
用リンク、１４……連結ピン、１６……パンタグ
ラフ機構、２１……クリアランス。 Figures 1 to 5 show a first embodiment of this invention, in which Figure 1 is a longitudinal cross-sectional view showing the main structure of the endoscopic treatment tool, and Figure 2 is a wire joint and pantograph mechanism. 3 is a longitudinal cross-sectional view showing the joint between the support head and the pantograph mechanism, FIG. 4 is a plan view showing the state in which the needle is attached, and FIG. 6 is a vertical sectional view of the main part showing the second embodiment, and FIG. 7 is a sectional view taken along the line V-V of
FIG. 8 is a vertical cross-sectional view of the main part showing the fourth embodiment, and FIGS.
The figures show a conventional example: Fig. 9 is a longitudinal sectional view showing the main part configuration of the endoscopic treatment tool, Fig. 10 is a plan view showing the pantograph mechanism, and Fig. 11 shows the wire joint and pantograph mechanism. FIG. 12 is a side view showing the joint between the support head and the pantograph mechanism, and FIG. 12 is a longitudinal sectional view showing the joint between the support head and the pantograph mechanism. 2a, 2b...biopsy cup (treatment part component)
, 3... Operating wire, 6a, 6b... Proximal arm section, 9... Rotating pin, 13a, 13b... Operating link, 14... Connecting pin, 16... Pantograph mechanism, 21... Clearance .

Claims

[Scope of utility model registration request]

Each proximal end side arm part of a pair of treatment section constituent members and each distal end part of a pair of operating links are respectively rotatably connected, and each proximal end part of both operating links is connected to a common In an endoscopic treatment instrument equipped with a pantograph mechanism connected to the operating wire side via a connecting pin, the axial direction of the connecting pin is attached to the connecting portion between each proximal end of both operating links and the operating wire side. An endoscopic treatment instrument characterized by having a clearance for absorbing assembly errors.