Single-flap tube and manufacturing method thereof

Abstract

The invention provides a single-flap tube and a manufacturing method thereof. The single-flap tube comprises a tubular body and a flap; the upper edge of the flap is separated from the tubular body, and the side edge of the flap and the tubular body are sewed together, so that a flap bag is formed between the flap and the tubular body; at least one to-be-sewed layer is arranged on the tubular body; after being dismantled and sewed, the tubular body turns into a flake body; the inner diameter of the tubular body is determined by the length of the bottom edge of the flake body and the sewing consumption amount corresponding to the at least one to-be-sewed layer. The single-flap tube can be cut into the band flap bag patch of the required size, the band flap bag patch is sewed with the narrowright ventricular outflow tract and the pulmonary artery, and when the tube is widened and restored to a pulmonary artery tube with the standard inner diameter, partial backflow blood during diastolecan flow back into the flap bag. Therefore, when the heart is in the diastole state, the amount of blood flowing back to the ventriculus dexter from the pulmonary artery is reduced.

Description

technical field [0001] The invention relates to the field of biomedical technology, in particular to a single-valve pipeline and a manufacturing method thereof. Background technique [0002] Some congenital heart diseases are accompanied by right ventricular outflow tract and pulmonary artery stenosis, which will affect the normal life of patients and even threaten their lives. How to repair the narrow right ventricular outflow tract and pulmonary artery when treating these patients with congenital heart disease become the focus of attention. [0003] At present, the commonly used clinical method is to use a patch made of polymer materials or biomaterials to widen the above-mentioned narrow right ventricular outflow tract and pulmonary artery to ensure the smooth flow of the cardiovascular system. [0004] However, simply widening the right ventricular outflow tract and pulmonary artery, during systole, right ventricular blood can flow to the lungs through the widened pulmo...

AI Technical Summary

Problems solved by technology

[0004] However, simply widening the right ventricular outflow tract and pulmonary artery, during systole, right ventricular blood can flow to the lungs through the widened pulmonary artery; and during diastole, because there is no one-way valve (valve pocket) on the patch, the original The stenotic pulmonary valve leaflets are also often underdeveloped, and the blood flow in the lungs can flow back to the right ventricle without hindrance, increasing the burden on the right ventricle, which will lead to the decline of right heart function over time, thus affecting the health of patients

Images