Esophagus-stomach anastomotic fistula occluder and application thereof

Abstract

The invention relates to an esophagus-stomach anastomotic fistula occluder which is composed of a stomach tube, a columnar balloon, an annular balloon and a support, wherein the support is circular-barrel-shaped as well as is sleeved and fixed on the stomach tube; the columnar balloon is a circular-barrel-shaped air balloon as well as is attached and fixed on the outer surface of the support; the annular balloon is an annular air balloon and is fixed on the surface of the lower end of the support; a gap is disposed between the annular balloon and the columnar balloon; and a columnar balloon pipeline communicated with the columnar balloon and an annular balloon pipeline communicated with the annular balloon are disposed in the tube wall of the stomach tube. The invention further provides an application of the occluder. The esophagus-stomach anastomotic fistula occluder disclosed by the invention has the following advantages that: when the esophagus-stomach anastomotic fistula occluder is in use, a function of accurate location can be realized, and the tension of anastomosis can also be reduced to promote the union of anastomosis; the sealing performance of occlusion is greatly improved, and injury on esophageal wall is greatly reduced; the operation is simple, fistula can be completely isolated from stomach and esophageal cavity, and the pain and mucosal injury caused by the compression of the support can be reduced; and the support has no displacement and is easy to take out.

Description

technical field [0001] The invention relates to a medical implant, in particular to an occluder for esophagus-gastric anastomotic fistula. Background technique [0002] Esophagogastric anastomotic leakage is one of the most serious complications after esophagectomy, with an incidence rate of 1-5% and a mortality rate of up to 50%. The course of the disease can last for several months and cost hundreds of thousands. The existing method of treating anastomotic fistula by sealing the fistula with stent-grass in the esophagus has achieved a certain effect, but the effect is not satisfactory. Firstly, the stent and the fistula are difficult to fit and the sealing effect is not good; secondly, the stent is easily displaced; furthermore, the stent needs to be placed in the esophagus for a long time, causing damage to the esophageal mucosa, resulting in excessive proliferation of granulation tissue and making it difficult to remove the stent. [0003] Chinese patent document CN101...

AI Technical Summary

Problems solved by technology

However, there is no report about a kind of esophagus-gastric anastomotic fistula occluder that can completely isolate the fistula from the stomach and esophageal cavity, reduce the pain and mucosal damage caused by stent compression, and the stent does not shift and is easy to take out.

Images