Valve support and interventional heart prosthesis valve

Abstract

The purpose of the present invention is to provide a valve support with small volume, good fatigue resistance and strong anchoring force and an interventional heart prosthesis valve, which is characterized in that it includes: an upper ring support; a middle ring support, located on one side of the upper ring support and, the lower ring bracket is located on the side of the middle ring bracket away from the upper ring bracket, wherein the upper ring bracket has an upper ring, an upper ring connecting rod and an upper ring barb, and the upper ring connecting rod and the upper ring barb are arranged on the upper ring Facing the extension direction of the middle ring bracket, the middle ring bracket has a middle ring, a middle ring connecting rod, a middle ring connecting hole, a middle ring barb and a middle ring pulling ring. The middle ring bracket is connected with the upper ring bracket, the middle ring connecting rod is arranged on the middle ring, facing the extending direction of the lower ring bracket, the middle ring barb is arranged on the middle ring, facing the extending direction of the upper ring bracket, and the lower ring bracket has a lower ring, a lower ring Connecting hole and lower ring pulling ring.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to a valve support and an interventional heart prosthesis valve. Background technique [0002] Cardiac prosthetic valves are artificially manufactured organs that can be implanted in the heart to replace the original heart valves and control the one-way flow of blood in each chamber of the heart. With the development of the national economy and the aggravation of population aging, in recent years, the incidence of valvular heart disease has gradually increased, and the incidence population is also gradually younger. For patients with severe valvular disease who are elderly, complicated with multiple organ diseases, have a history of thoracotomy, and poor heart function, interventional treatment of valvular heart disease has many advantages such as no need for thoracotomy, less trauma, less pain, and faster recovery. , has been favored by more and more patients. [0003] Prosthetic v...

AI Technical Summary

Problems solved by technology

[0004] An analysis of the traditional mitral / tricuspid prosthetic valve found that it has at least one of the following disadvantages: First, the "sharp corners" and "barbs" are easy to break, and the deformation direction of the "barbs" of traditional valves It is the same or opposite to the displacement direction of the valve stent, and the axial stress is also relatively large, so it is very prone to fracture; second, the anchoring is unstable at the initial postoperative stage, when the "barb" punctures the original leaflet annulus Finally, the human body will produce a phenomenon called "endothelialization": endothelial cells, etc. will gather near the wound, forming connective tissue to wrap the wound and "barbs", so that the "barbs" and the heart "integrate" to achieve Anchoring effect, but "endothelialization" usually takes about 3 months to complete, so in the early postoperative period, "endothelialization" has not been completed, the "barbs" are not stable enough, and the prosthetic valve is easy to loosen; third, the fatigue performance of the stent Poor; Fourth, LVOTO (left ventricular outflow track obstruction) occurs after mitral prosthetic valve intervention. The traditionally designed prosthetic valve has a large ventricular end, which will hinder the left ventricular contraction. Blood in the left ventricle is ejected from the aorta

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