Medical catheter for assisting in endoscopic submucosal dissection

Abstract

The invention discloses a medical catheter for assisting in endoscopic submucosal dissection. The medical catheter comprises a catheter in single hardness and a catheter in variable hardness; the former is a whole catheter in single hardness; the latter is the catheter having one section at one end with the hardness being relatively less than the hardness of the other parts; and the catheter can pass through an endoscope biopsy duct and has a function of guiding and supporting a snare passing through the inner chamber of the catheter. The medical catheter for assisting in endoscopic submucosal dissection disclosed by the invention guides the snare to combine with an endoscope clip so as to assist in endoscopic submucosal dissection, to realize the pulling, pushing and exposing of the submucosa of the gastrointestinal mucosa and to greatly improve the visual field of endoscopic surgery, so that the safety and efficiency for cutting the gastrointestinal mucosa lesion of the endoscopic submucosal dissection can be promoted.

Description

Technical field [0001] The invention relates to the field of medical devices, and in particular to a medical catheter assisting endoscopic submucosal dissection. Background technique [0002] At present, endoscopic mucosal dissection (ESD) is the most important and commonly used method of endoscopic surgery to remove early tumors of the digestive tract. In order to perform endoscopic mucosal dissection more effectively, methods such as dental floss assisted method, hammer-clamp assisted method, curved forceps assisted method, and double-clamp assisted ESD have been studied. These methods are similar to playing the role of the second hand, by pulling or pushing the mucosa to lift the submucosa, so that the endoscopic operation field of the submucosa is fully exposed, thereby effectively assisting the treatment of ESD. However, these methods all have certain limitations. For example, the operation site is limited, the direction and force of pulling the mucosa cannot be adjusted i...

AI Technical Summary

Problems solved by technology

However, these methods have certain limitations

For example, the operation site is limited, the direction and strength of pulling the mucosa cannot be adjusted in real time, special endoscopic auxiliary devices are required, and the operation is invasive or expensive and difficult to promote and popularize.

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