JPH0331412U

JPH0331412U -

Info

Publication number: JPH0331412U
Application number: JP9138389U
Authority: JP
Priority date: 1989-08-02
Filing date: 1989-08-02
Publication date: 1991-03-27
Anticipated expiration: 2004-03-16
Also published as: JPH069623Y2

Description

[Brief explanation of drawings]

第１図乃至第４図はこの考案の第１の実施例を
示すもので、第１図は高周波切除具の要部構成を
示す縦断面図、第２図は切除ループを可撓管内に
収納させた状態を示す縦断面図、第３図は切除ル
ープを体腔内ポリープ等の突起部に掛けた状態を
示す斜視図、第４図は焼灼切除作業の最終段階で
切除ループを絞つた状態を示す斜視図、第５図は
この考案の第２の実施例を示す要部の縦断面図、
第６図はこの考案の第３の実施例を示す要部の縦
断面図、第７図はこの考案の第４の実施例を示す
要部の縦断面図、第８図乃至第１２図は従来例を
示すもので、第８図は高周波切除具全体の概略構
成を示す平面図、第９図は切除ループを可撓管の
外部に突出させた状態を示す縦断面図、第１０図
は切除ループを可撓管内に収納させた状態を示す
縦断面図、第１１図は切除ループを体腔内ポリー
プ等の突起部に掛けた状態を示す斜視図、第１２
図は焼灼作業の最終段階で切除ループを絞つた状
態を示す斜視図である。２…可撓管、６…操作ワイヤ（操作部材）、８
…切除ループ、２１…ワイヤ、２４，４３，５３
…接合部、２５，４４，５４…頂角部。 Figures 1 to 4 show the first embodiment of this invention. Figure 1 is a longitudinal sectional view showing the main structure of the high-frequency cutting tool, and Figure 2 shows the cutting loop housed in a flexible tube. Fig. 3 is a perspective view showing the state in which the resection loop is hung over a protrusion such as a polyp in a body cavity, and Fig. 4 shows the state in which the resection loop is tightened at the final stage of the cautery excision operation. FIG. 5 is a longitudinal cross-sectional view of the main part showing the second embodiment of this invention,
FIG. 6 is a vertical sectional view of the main part showing the third embodiment of this invention, FIG. 7 is a longitudinal sectional view of the main part showing the fourth embodiment of this invention, and FIGS. 8 to 12 are 8 is a plan view showing a schematic configuration of the entire high-frequency cutting tool, FIG. 9 is a longitudinal cross-sectional view showing the state in which the cutting loop is protruded to the outside of the flexible tube, and FIG. 10 is a conventional example. FIG. 11 is a vertical cross-sectional view showing a state in which the resection loop is housed in a flexible tube; FIG.
The figure is a perspective view showing the state in which the resection loop is tightened at the final stage of the cautery operation. 2... Flexible tube, 6... Operation wire (operation member), 8
... excision loop, 21 ... wire, 24, 43, 53
...Joint portion, 25, 44, 54... Apex corner portion.

Claims

[Scope of utility model registration request]

The rear end of an operating member inserted into the flexible tube so as to be freely advanced and retractable is connected to a high frequency power source, and a cutting loop provided at the tip of the operating member is installed in the flexible tube so that it can be protruded and retracted. In the ingredients,
A cross-shaped joint in which a portion of the wire forming the resection loop is joined to the distal end of the resection loop in a cross-like manner, or a superposed joint in which the ends of a plurality of excision loop-forming wires are joined in an overlapping state. 1. A high-frequency cutting tool characterized in that a sharp apex portion is formed between each wire on the inside of these joint portions.