Repairing system provided with anchoring device and used for preventing valve regurgitation

Abstract

The invention relates to a repairing system provided with an anchoring device and used for preventing valve regurgitation. The system comprises a prosthesis preventing valve regurgitation and an anchoring part releasing device, wherein the prosthesis preventing valve regurgitation comprises a fixing unit, a connecting part and a close-assisting part, the fixing unit comprises a fixing part and an anchoring part, the connecting part is flexible, and the fixing part is fixed through the anchoring part, an anti-disengagement end is arranged at the near end of the anchoring part; the anchoring part releasing device comprises a delivery pipe and a push rod and is detachably connected with the fixing unit, the far end of the anchoring part releasing device is in a preset shape to enable the far end of the delivery pipe to be bent integrally or partially, a rigid section is arranged at the farthest end of the delivery pipe, the anchoring part is pre-arranged in the far end of the delivery pipe, the push rod is placed in the delivery pipe and located at the near end of the anchoring part, the anchoring part can be made to move towards the far end of the delivery pipe by pushing the push rod, and the far end of the anchoring part can recover to the preset shape after being pushed out of the delivery pipe.

Description

Technical field: [0001] The invention belongs to the field of medical devices, in particular to a repair system with an anchoring device for preventing valve regurgitation. Background technique: [0002] The mitral valve is located at the left atrioventricular orifice and consists of five parts: the valve annulus, valve leaflets, chordae, papillary muscles, and junctional junction. Its anatomically accurate name is mitral apparatus (mitral apparatus) or mitral valve compound body (mitral complex). [0003] The tricuspid valve is located at the right atrioventricular orifice and has three approximately triangular sail-shaped valves. The bottom of the valve is attached to the fibrous annulus of the atrioventricular orifice. Functionally, the fibrous annulus, valves, chordae and papillary muscles can be seen. It is a tricuspid valve. Valve complex (tricuspid valvar complex). [0004] Mitral regurgitation (mitral regurgitation) can be divided into the following three types: fu...

AI Technical Summary

Problems solved by technology

The main reason is that the mitral valve ring and tricuspid valve ring have special physiological structures, and there is a complex physiological environment below the valve ring, making it very difficult to accurately position and fix the product

In addition, the degree and location of valve prolapse are different. For example, some patients have regurgitation caused by posterior valve prolapse, and some patients have regurgitation caused by combined valve disease. It also interferes with the physiological structure of the remaining normal mitral valve, and the adaptability of the lesion is insufficient, and the above-mentioned anchoring technology cannot meet the standards of easy operation and firm fixation. In summary, although the above-described technology is in the There are certain effects on valve repair respectively, but in the field of surgery for treating valvular insufficiency, there is an urgent need for a device with adjustable position, accurate positioning, good cooperation with instruments during anchoring, easy operation, and ability to cope with various types of valves. Extent and location of lesion technique

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