Lightweight atrium and ventricle coloboma occluder

Abstract

The invention provides a lightweight atrium and ventricle coloboma occluder. A main body part of the lightweight atrium and ventricle coloboma occluder is a papilionaceous elastic net formed by woven Nickel-Titanium alloy wires; relative to the two sides, the middle part of the papilionaceous elastic net is a cylindrical waist with smaller outer diameter; the left end and the right end of the waist are respectively connected to a left disc and a right disc; both the left disc and the waist are made of single-layered elastic nets; the left disc is smooth in edge and takes the shape of a turning outwards bell mouth; the right disc is made of a hollow double-layered elastic net, a plurality of alloy wires are gathered together at the center part of the right side surface of the right disc, a joint is welded at the center part, and a screw hole for be screwed with conducting wires is formed in the middle part of the joint; and a layer of diaphragm seal is respectively sewed on the left side surface of the left disc and the left side inner wall inside the right disc. The occluder has the benefits that only one joint is used at the right end of the occluder, and the left disc is of a single-layered and turning-outward open type structure, so that the weight of the occluder is lightened, hot-pressing bending processes of the elastic nets are reduced, and postoperative long-term risks are reduced.

Description

technical field [0001] The invention relates to a medical occluder, in particular to a light-duty atrium-ventricular defect occluder, which is mainly used for repairing congenital atrial and ventricular septal defects in interventional operations. Background technique [0002] Congenital heart disease Atrial septal defect and ventricular septal defect are common congenital heart diseases. They are a major killer that endangers human health, especially children's health. The annual incidence of this disease in my country is more than 100,000. Atrial septal defect of the heart is characterized by the failure of the septal membrane between the left and right atria to close normally, and blood flows between the left and right atrium; ventricular septal defect is characterized by the failure of the septum between the left and right ventricles to close normally , allowing blood to flow between the left and right ventricles. Because the pressure in the left atrium is higher than t...

AI Technical Summary

Problems solved by technology

At present, due to the structural problems of the occluder itself, the occluder is relatively large in size and heavy in weight, and takes up a lot of space in the heart, which affects the normal operation of the heart function.

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