Covered stent, preparation method and weight-losing stent system comprising covered stent

Abstract

The invention discloses a weight-losing stent system. The system comprises a covered stent and a conveying device, the covered stent is conveyed to the stomach through the conveying device. The covered stent achieves a mass effect through the self-expansion force, so that the intragastric volume is reduced. The diet amount of obese patients can be reduced through the mass effect, and diet controlis achieved in the aspect of food saving. After a period of time, due to the fact that the personal diet habit is formed due to the food control effect, the rice amount is greatly reduced from the original, and finally a recovery sheathing pipe is directly connected to a covering film and compresses and recovers the covering film. The conveying-type weight-losing stent system does not need a traumatic operation and can effectively solve complications such as intestinal obstruction and the like caused by existing products. The covered stent comprises a stent and tectorial membrane clothes attached to the surface of the stent. The conveying device comprises a conveying catheter and a conveying sheath, the conveying sheath and the conveying catheter are mainly made of nylon and polyurethane high polymer materials, and the conveying sheath is located in the conveying catheter and connected to the covered stent.

Description

technical field [0001] The present invention relates to the technical field of medical devices, in particular to a stent-graft and a preparation method thereof, and also to a delivery-type weight loss stent system comprising the stent-graft. Background technique [0002] The generally accepted definition of adiposity is that the amount of fat stored in the body exceeds the ideal body weight by more than 20%, rather than the actual body weight exceeding the ideal body weight by more than 20%. It is also possible to judge obese people clinically by combining the latter definition with naked eyes. But the latter definition of obesity is not applicable to some special individuals such as bodybuilders and weightlifters. Obesity can be caused by many diseases, so obesity is not a disease name, but a symptom. Obesity is a common and ancient cluster of metabolic disorders. When the human body eats more calories than it consumes, the excess calories are stored in the body in the f...

AI Technical Summary

Problems solved by technology

The delivery-type weight loss stent system does not require traumatic surgery, and can effectively solve clinical complications such as intestinal obstruction caused by existing products

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