Stent-less high polymer prefabricated valve applied to aortic root reconstruction

Abstract

The invention relates to a stent-less high polymer prefabricated valve applied to aortic root reconstruction. The stent-less high polymer prefabricated valve comprises a suture ring and three valve leaflets which are consistent in specification, wherein the suture ring is of a strip-shaped structure; the valve leaflets are composed of inner leaflets and edge portions; the inner leaflets are of half-moon shaped structures which are matched with aortic valve leaflets of human body; the edge portions are of annular structures which are matched with outer contour lines of the inner leaflets, and the edge portions are stuck on the peripheries of the inner leaflets; the three valve leaflets are distributed in a line in a length direction of the suture ring, and the edge portions of the valve leaflets, in correspondence to parts of straight edges thereof, are stuck at the same side of the suture ring; and the ends, which are mutually close, of the two adjacent valve leaflets are connected. The stent-less high polymer prefabricated valve provided by the invention has the advantages that the prefabricated valve is simple in structure and convenient for doctors to use; the prefabricated valve can save operational time and reduce surgical risks in patients; and the prefabricated valve that the valve leaflets are not made by biological tissues, is free from a phenomenon of of calcificationand free from immunotoxicity.

Description

technical field [0001] The invention relates to a stent-free polymer prefabricated valve for aortic root reconstruction. Background technique [0002] With the increasing aging of the social population, unhealthy eating habits, and high work pressure, the incidence of chronic rheumatic heart disease (referred to as "rheumatic heart disease") such as stenosis, regurgitation, and calcification is increasing. Rheumatic heart disease most commonly involves the mitral valve, followed by the aortic, tricuspid, and pulmonary valves. According to clinical statistics, simple mitral valve stenosis accounts for about 40% of rheumatic heart disease, and it is more common in 20-40 years old, and 2 / 3 are women. Simple mitral valve insufficiency is more common in men, accounting for about 3 / 5, and more than 50% of patients are accompanied by mitral valve stenosis. Most patients with aortic regurgitation are accompanied by mitral valve disease, and most aortic valve stenosis is accompanie...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a stentless polymer prefabricated valve for aortic root reconstruction, which overcomes the defects encountered in the traditional operation process

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