Winding prevention type multifunctional high-frequency scalpel of endoscope

Abstract

A winding prevention type multifunctional high-frequency scalpel of an endoscope comprises a scalpel head (1) and a core pin (5). A rotating handle (8) is arranged at one end of the core pin (5), and one end of the scalpel head (1) is fixedly inserted into the core pin (5). The winding prevention type multifunctional high-frequency scalpel of the endoscope is characterized in that a liquid injection hole (2) is arranged in the scalpel head (1), one end of the liquid injection hole (2) is communicated with a liquid spraying hole at a scalpel tip of the scalpel head (1), the other end of the liquid injection hole (2) is communicated with a liquid injection connecting tube (6), the liquid injection connecting tube (6) extends out of the core pin (5) to be communicated with a liquid source, the core pin (5) is movably inserted in a slider (4) and can be driven to rotate relative to the slider (4) by the rotating handle (8), a conductive plug mounting sleeve (9) capable of rotating relative to the core pin (5) is sleeved at the other end of the core pin (5), a conductive plug (7) is fixed in the conductive plug mounting sleeve (9), one end of the conductive plug (7) contacts with one end of a conductive spring (10) in an abutted manner, the other end of the conductive spring (10) contacts with a conductive ring or conductive steel ball (11) in an abutted manner, and the conductive ring or conductive steel ball (11) slidably contacts with the scalpel head (1). The winding prevention type multifunctional high-frequency scalpel is simple in structure and flexible in operation, andcan reduce complications.

Description

technical field [0001] The invention relates to a medical device, in particular to a high-frequency incision knife for excision of mucosal tissue under an endoscope, in particular to an anti-winding type multifunctional endoscope high-frequency incision knife. Background technique [0002] As we all know, endoscopic submucosal dissection (ESD) is a method of mucosal resection for gastrointestinal lesions. ESD surgery is generally first to inject liquid into the submucosal layer of the lesion to bulge the tissue to be resected, then use a high-frequency incision knife and other instruments to cut along the edge of the raised lesion (circle cut), and then repeatedly inject the liquid under the mucosa and along the The submucosa is gradually peeled off the diseased tissue until the lesion is resected. [0003] At present, clinically, before performing submucosal dissection, it is necessary to use other instruments (special endoscopic injection needles) to inject the mucosa to ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is that the current high-frequency incision knife used in the ESD process has a single function, especially the easy winding of the wires leads to inconvenient operation and prolongs the operation time. Flexible operation anti-winding multifunctional endoscope high frequency incision knife

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