Esophageal stent forceps

Abstract

The invention relates to a pair of esophageal stent forceps, which comprises a forceps head part, a middle part and an operating part, wherein the middle part comprises a flexible shell and a flexible wire; the inner part of the flexible shell is a cavity; the flexible wire is arranged in the inner cavity of the flexible shell; the forceps head part comprises a first arc hook, a second arc hook and a fixed seat; the second arc hook is matched with the first arc hook; the fixed seat is fixedly connected with the flexible shell; at least one of the first arc hook and the second arc hook is connected with the flexible wire; the arc hook connected with the flexible wire is rotatablely fixed on the fixed seat; the operating part comprises a base and a moving mechanism; the base is fixedly connected with the flexible shell; the moving mechanism can move on the base; and the moving mechanism is fixed with the flexible wire. The invention changes the original open hook structure, can conveniently take out the esophageal stent, and can conveniently control the opening and closing of the first arc hook and the second arc hook.

Description

technical field [0001] The invention relates to an esophageal stent (cylindrical structure, commonly used as a "Z"-shaped stent or a mesh-shaped memory alloy stent, hereinafter referred to as an esophageal stent) removal forceps, and more specifically relates to a forceps used in conjunction with an endoscope. The esophageal stent removal forceps that can effectively remove the esophageal stent. Background technique [0002] During the treatment of patients with esophageal stenosis (benign stenosis or malignant stenosis), in order to relieve esophageal obstruction and improve or restore the patient's oral feeding function, it is often necessary to place an esophageal stent in the patient's esophagus to restore patency. When placing an esophageal stent, it is often necessary to adjust or take it out and replace it due to calculation errors or improper operation; The stent slipped toward the stomach; benign esophageal strictures also needed to be removed after treatment. The...

AI Technical Summary

Problems solved by technology

Since the hook has a rigid structure and is hooked in one direction (the opening direction of the hook), when using the hook to capture the looped thread at the upper end of the esophageal stent through the endoscope, it often takes many repeated attempts, and the operation is time-consuming and laborious, causing the esophageal stent Very difficult to remove / adjust

If the stent is placed in an improper position and cannot be taken out and placed again, it will lead to treatment failure; patients with benign esophageal strictures cannot take out the esophageal stent after treatment, and long-term storage in the patient's esophagus may even lead to canceration, which adds unnecessary extra cost to the patient. pain

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