Stentless bovine pericardium bioprosthetic valve manufactured through novel method

Abstract

A stentless bovine pericardium bioprosthetic valve manufactured through a novel method comprises single valve leaflets. The contour lines of the edges of the single valve leaflets are parabolas. The parabolas are of four kinds according to ages and weights. The parabolas are formed by cutting in the mode that corresponding parabolas are generated according to information of ages and weights and single valve leaflets are formed by cutting the generated parabolas. When the number of the single parabolas is two or three, the single parabolas are connected through straight transition lines, and the span of the parabolas is defined, so that the cut bioprosthetic valve meets the requirement of patients. According to different ages and weights, the four parabolas are designed as the cutting tracks of the single valve leaflets, so that the cut tentless bovine pericardium bioprosthetic valve meets the requirements of patients of different ages and weights.

Description

technical field [0001] The invention relates to an artificial organ, especially a bovine pericardium biological valve without a stent made by a novel method for aortic valve replacement. Background technique [0002] So far, cardiac surgeons at home and abroad mainly use valve replacement and aortic valvuloplasty for surgical correction of aortic valve insufficiency. Active valvuloplasty is to fold and suspend the diseased aortic valve leaflets to restore the function of the valve. Its advantage is that the operation is less difficult and the original valve leaflets and their anatomical structure are preserved. However, the recovery of aortic valve function is poor after operation, and the chance of reoperation is high. This creates tremendous economic and mental pressure on patients and their families. With the development of biomedical engineering, biotechnologically processed bovine pericardial bioprostheses have been widely used in aortic valve replacement. However, d...

AI Technical Summary

Problems solved by technology

This requires cardiac surgeons to accurately measure the size and shape of the valve leaflets, and at the same time cut them accurately and quickly, which not only places high demands on cardiac surgeons, but also prolongs the operation time

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