Aortic valve upper forming fixing device

Abstract

The invention relates to an aortic valve upper forming fixing device which comprises a forming ring and a measuring device. The forming ring is composed of three forming sections identical in shape, each forming section is arc-shaped, the forming sections are connected end to end, points connecting the forming sections are connection points, the forming sections are positioned on a same side of aplane where the three connection points are on, distances among the connection points are equal, mutual distances among middle points of the sections are equal, the distances among the three connection points are equal to the distances among the middle points of the sections, and the plane where the three connection points are on is parallel to a plane where the middle points of the forming sections are on; the measuring device is composed of a semicircular part and a measuring rod which are fixedly connected, length of the semicircular part is equal to that of each forming section, and each of the semicircular part and a soft rod is composed of an elastic material. The forming ring can gather an outwards-expanding valve ring together to enable the expanding valve ring to gradually restorenormal, and normal closing of a valve leaflet can be realized to enable the aortic valve to gradually restore normal physiological functions.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an aortic valve supraforming and fixing device. Background technique [0002] A variety of heart diseases (such as: valvular heart disease, congenital heart disease, coronary heart disease, cardiomyopathy, etc.) lead to left heart enlargement, which in turn leads to dilation of the aortic valve ring and aortic valve insufficiency. The method of arterial valve replacement not only has many surgical and postoperative complications, but also is expensive. Each valve costs about 18,000 to 40,000 yuan. Many patients need to take anticoagulant drugs for life, which brings the risk of thrombus and bleeding. [0003] Aortic valvuloplasty ring can solve this problem, the operation is simple and there are few complications, and life-long anticoagulant therapy is not required. At present, the aortic valve forming ring has been used clinically in foreign countries, but t...

AI Technical Summary

Problems solved by technology

At present, the aortic valve forming ring has been used clinically in foreign countries, but the forming ring is a subvalvular ring, which is placed in the left ventricular outflow tract under the aortic valve, and it is relatively difficult to place it deep. and the anterior leaflet of the mitral valve, which may cause the compression of the conduction bundle and the mitral valve leaflet, resulting in conduction block and mitral valve dysfunction; in addition, the forming ring is located in the subvalvular left ventricular outflow tract, and the impact of blood flow is obvious, which is extremely prone to red blood cell destruction leading to hematuria

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