Novel negative pressure suction type snare

Abstract

The invention discloses a novel negative pressure suction type snare, which is composed of a snare 1, a steel wire rope 2, a suction tube 3, a handle 4 and a piston rod 6 with a power plug 5, and is characterized in that the suction tube 3, the handle 4 and the piston rod 6 with the power plug 5 form a piston type extending stroke device, one end of the suction tube 3 is provided with a snare outlet 7, the snare 1 is connected with the steel wire rope 2 at the snare outlet 7, one end of the steel wire rope 2 penetrates through the suction tube 3 to be connected with the piston rod 6 with the power plug 5, and after the snare extends out of the snare outlet, the head of the suction tube sucks and fixes a target area, and tissue in the target area can be accurately cut off. The novel negative pressure suction type snare has the advantages of compact structure, convenience use, high precision and good efficiency, and is suitable for cutting diseased tissues through an endoscope.

Description

Technical field: [0001] The patent of the invention belongs to the technical field of medical equipment manufacturing, and specifically relates to a novel negative pressure suction snare. Background technique: [0002] As far as the inventor knows, the snare is currently an indispensable tool for endoscopic resection of diseased tissue. According to the experience of endoscopic operation in recent years, it has been found that after the existing commonly used snare is fully opened, the diseased tissue is surrounded by the snare , during the contraction of the snare, the diseased tissue is resected. During the operation of the existing method, the snare and the diseased tissue are always in relative motion, which cannot accurately surround the diseased tissue within the range of the snare, requiring the operator to be skilled. According to the operating experience, during the contraction of the snare, the lesion tissue can be accurately removed, especially when the lesion tis...

AI Technical Summary

Problems solved by technology

[0002] As far as the inventor knows, the snare is currently an indispensable tool for endoscopic resection of diseased tissue. According to the experience of endoscopic operation in recent years, it has been found that after the existing commonly used snare is fully opened, the diseased tissue is surrounded by the snare , during the contraction of the snare, the diseased tissue is resected. During the operation of the existing method, the snare and the diseased tissue are always in relative motion, which cannot accurately surround the diseased tissue within the range of the snare, requiring the operator to be skilled. Operating experience, during the contraction of the snare, the lesion tissue can be accurately removed, especially when the lesion tissue is flat, it is difficult to trap the lesion tissue and remove it accurately

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