Novel multifunctional mucous membrane incision knife

Abstract

The invention provides a novel mucous membrane incision knife integrating two mucous membrane incision knives and a submucous membrane injection function. The two mucous membrane incision knives comprise a traditional T knife and an innovative arch knife, and meanwhile the submucous membrane injection water spraying function is combined. The novel multifunctional mucous membrane incision knife comprises a handle part and a sheathing canal part, and the sheathing canal part comprises an outer sheathing canal, two incision knives (the T knife and the arch knife), a T knife traction guide wire cavity, an arch knife traction guide wire cavity (a dual-purpose injection cavity), a first heat-shrinkable sleeve, a second heat-shrinkable sleeve, a first high-frequency electrode plug, a second high-frequency electrode plug and an injection connector. According to the invention, two mucous membrane incision modes of an endoscopic mucous membrane dissection operation are realized; especially, an innovative arch knife mucous membrane incision mode greatly improves operation efficiency and safety, meanwhile, submucous tissue can be injected with water in the operation, the perforation occurrencerate of the digestive tract tube wall can be reduced, operation time is shortened, operation efficiency and safety are improved, the difficulty of an ESD technology is reduced, and application and popularization of the ESD technology are facilitated.

Description

technical field [0001] The invention relates to a surgical incision knife for endoscopic mucosal dissection, in particular to a novel multifunctional mucosal incision knife, which belongs to the technical field of medical machinery. Background technique [0002] Endoscopic mucosal dissection is a new treatment method that has emerged in recent years, and it is also a technology with good clinical application prospects. It allows more early-stage gastrointestinal cancers to be completely resected under endoscopy at one time, eliminating the need for laparotomy. For the pain and removal of organs, the important surgical tool for endoscopic mucosal dissection is the mucosal incision knife. Common incision knives for early cancer stripping on the market include needle knife, IT knife, hook knife, triangular knife, Flush knife (with a flushing hole in the knife head), woodpecker knife and Haibo knife, etc. [0003] As an important method in the treatment of gastrointestinal lesi...

AI Technical Summary

Problems solved by technology

However, the existing mucosal incision knives are all dot-shaped incisions, the incision width is small, and the incision efficiency is low.

In addition, it is difficult to control the incision depth and angle, difficult to master the operation technique, and prone to perforation of the digestive tract wall.

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