Intracardiac tunnel patch module with turning curved surface

Abstract

The invention provides an intracardiac tunnel patch module with a turning curved surface. The module comprises an intracardiac tunnel flow cavity, and the intracardiac tunnel flow cavity is formed byan ventricular septal defect suture body, isosceles triangle connecting patches, a turning part and an aortic valve opening suture body in an enveloping and suturing mode. The turning part is the turning curved surface formed by sewing and splicing a plurality of rhombic patches end to end, and the top end and the bottom end of the turning curved surface are connected with the aortic valve openingsuture body and the ventricular septal defect suture body through the isosceles triangle connecting patches respectively. According to the invention, different sizes of the patches can be designed according to statistical data; a modular intracardiac tunnel patch form is formed by selecting according to requirements; by means of the technical scheme, physiological requirements of most patients can be met, and subjective factors of doctors during treatment are reduced; and particularly, a tunnel is established in vitro, which shortens the operation time, lowers the operation difficulty, effectively guarantees the treatment effect, and reduces postoperative reintervention factors.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an intracardiac tunnel patch module with a curved surface. Background technique [0002] Double outlet right ventricle (DORV) is a rare complex cyanotic congenital heart disease. In 2000, the two major databases of the International Association of Thoracic Surgeons and the European Association of Thoracic and Cardiovascular Surgery adopted a new naming rule for DORV, that is, the "50%" rule: all of one aorta and more than 50% of the other aorta originate from the right ventricle. for DORV. Classical DORV should meet the following three basic conditions: (1) the aorta and pulmonary artery completely or mainly open in the right ventricle, and the two semilunar valves are basically at the same level; (2) there is no fibrous link between the semilunar valve and the atrioventricular valve instead With muscular connection; (3) Ventricular septal defect (Venticular Septal Defect, VSD) i...

AI Technical Summary

Problems solved by technology

At the same time, if the IVT with too large volume is sewn to ensure the patency of the tunnel, the volume of the right ventricle will be occupied too much, resulting in an increase in the pressure of the right ventricle and obstruction of blood flow, and even additional external catheterization is required, and the latter is the only option for long-term reoperative intervention. independent risk factors

[0004] Recent studies have found that the pressure difference in the IVT with a turning radius is much lower than that of the IVT established during surgery, and the volume is relatively small, but it is difficult to suture an IVT with a turning radius by doctors alone, so a supplement is urgently needed. The cutting method of slices simplifies the doctor's operation difficulty and meets the physiological needs of most patients

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