Recyclable esophageal stent

Abstract

Disclosed is a recyclable esophageal stent. The recyclable esophageal stent is structurally composed of a meshed esophageal stent body and an annular opening tightening line. The annular opening tightening line penetrates into mesh buckles at the two ends of the meshed esophageal stent body. The recyclable esophageal stent has the advantages that the structure is simple, the recyclable esophageal stent can be placed and can also be recycled, the cost is low, the recyclable esophageal stent can be made of common stainless steel wires to replace traditional expensive nickel-titanium memory alloy, and no refrigeration memory needs to be carried out on the recyclable esophageal stent before an operation; once the meshed esophageal stent body falls into the stomach, the meshed esophageal stent body can be dragged out and recycled through a pair of biopsy forceps under the monitoring of an X-ray machine, the meshed esophageal stent body can be repeatedly used after being recycled, the operation is conveniently carried out, the operation time is short, the pain of a patient is small, labor intensity of a doctor is low, and the treatment expenses of the patient can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a recoverable and reusable esophageal stent. Background technique [0002] If the human esophagus becomes cancerous, it will block the esophagus, causing the patient to be unable to swallow food and starve to death. In order to prolong the life of the patient, the existing technology is to place an esophageal stent made of memory alloy on the esophageal lesion to open the esophagus and expand it. The lumen diameter of the diseased esophagus is to facilitate the passage of food. The placement of this esophageal stent is performed with the help of a gastroscope, but the problem is that after the placement of the nickel-titanium memory alloy esophageal stent, it is found that many patients have esophageal cancer. The site was blocked again, causing difficulty in swallowing food. After X-ray perspective, it was found that the nickel-titanium memory alloy esophageal stent was ...

AI Technical Summary

Problems solved by technology

[0002] If the human esophagus becomes cancerous, it will block the esophagus, causing the patient to be unable to swallow food and starve to death. In order to prolong the life of the patient, the existing technology is to place an esophageal stent made of memory alloy on the esophageal lesion to open the esophagus and expand it. The lumen diameter of the diseased esophagus is to facilitate the passage of food. The placement of this esophageal stent is performed with the help of a gastroscope, but the problem is that after the placement of the nickel-titanium memory alloy esophageal stent, it is found that many patients have esophageal cancer. The site was blocked again, causing difficulty in swallowing food. After X-ray perspective, it was found that the nickel-titanium memory alloy esophageal stent was pushed down into the stomach due to esophageal peristalsis and swallowing coarse food. With the help of a gastroscope, the esophageal stent made of nickel-titanium memory alloy was cut bit by bit, and then removed piece by piece through biopsy forceps, and then a new nickel-titanium memory alloy esophageal stent was placed. The operation was very complicated. The patient is very painful, and the long-term operation increases the labor intensity of the doctor and increases the treatment cost of the patient. There is no good solution yet

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