A preparation method of an adhesive digestive tract stent

Abstract

The invention provides a bonding-type digestive tract support and a production method thereof. The bonding-type digestive tract support comprises a support body, diameters D of two end portions of the support body are 16-20mm, and an adhesive layer is arranged on the outer surface of the support body and composed of, by weight, 85-95 parts of high-molecular resin materials, 2-6 parts of ethylene-ethyl acrylate, 1-5 parts of zinc oxide, 0.5-3 parts of light calcium carbonate, 0.5-2 parts of clinoptilolite powder and 0.3-1 part of wool fat. Introduced bioactive oligopeptide can inhibit staphylococcus and the like to be adhered at infected parts, and the bonding-type digestive tract support has the advantages of conduciveness to rehabilitation of patients and the like.

Description

technical field [0001] The invention relates to a medical device, in particular to a preparation method of an adhesive digestive tract bracket. Background technique [0002] The treatment of digestive tract stenosis or obstruction and other diseases is usually treated by surgery. In order to alleviate the pain caused by the operation, interventional therapy is performed with the help of digestive tract stents. The digestive tract stent is placed in the affected part of the digestive tract, but under the influence of gravity and digestive tract peristalsis, the digestive tract stent often shifts, especially the trumpet-shaped part of the lower part of the digestive tract near the cardia. The stability of the digestive tract stent Poor stability, downward displacement, even slippage phenomenon, because of the slippage of the stent, the repositioning of the stent will bring pain and trouble to the patient. At present, there are many types of stents, which can be divided into b...

AI Technical Summary

Problems solved by technology

In order to prevent the stent from slipping, for the bare stent, those skilled in the art adopt the method of enlarging the diameter of both ends of the stent. The diameter of both ends is generally 20-24mm, and the supporting force of the two ends is obviously greater than that of other parts of the stent. Generate strong friction and irritation; or set two barbs on the outside of the bare stent, but the barbs are easy to scratch the digestive tract during removal, causing secondary damage; the outer surface of the membrane-covered stent is a water-swellable material, After expansion, the volume increases, so that it can be fixed on the affected area, and the large support force at the expansion site will also stimulate the digestive tract

The above-mentioned stents are likely to cause redness, swelling, inflammation and other symptoms caused by the digestive tract, and even perforation in severe cases

Images