Suture ring for left ventricle

Abstract

The invention relates to a suture ring for a left ventricle. The suture ring is characterized by comprising a medical stainless steel clamp sleeve and an annular terylene mat; the clamp sleeve comprises a clamp ring and a fixing ring body of the annular terylene mat, the clamping ring and the fixing ring body are integrally connected; the clamp ring is an integral clamp ring consisting of a semi-circular fixed ring and a thin-walled semi-circular movable ring; the upper part of the clamp ring is provided with a fastening groove; the upper port of the fixed ring, which corresponds to the fastening groove, is provided with a thread port; the upper port of the movable ring is provided with a screw through hole; the fixed ring is in threaded connection with the movable ring through a medical stainless steel fastening screw; and the annular terylene mat and the fixed ring body are fixedly connected integrally. The suture ring has the advantages that the defect of complex implantation process of the left ventricle in the conventional ventricle assisting device is overcome, and a centrifugal ventricle assisting device is divided into a blood pump main body and the suture ring for the left ventricle, so that a flowing inlet end of a centrifugal blood pump is connected with the left ventricle, and a flowing outlet end of the centrifugal blood pump is connected with aorta; and therefore, the assisting of the left ventricle can be realized, a circulatory function is improved, and a patient suffering from severe symptoms of heart failure can be treated. The implantation processes of the blood pump and the ventricle are simplified, and the safety of operation is improved.

Description

technical field [0001] The invention belongs to accessories of ventricular assist devices, in particular to a left ventricular sewing ring. Background technique [0002] At present, drug therapy for severe and refractory HF cannot obtain satisfactory results; and heart transplantation is limited by donors. Therefore, cardiac mechanical assist devices have gradually become an effective treatment for severe refractory HF. Cardiac mechanical assist device is to ensure effective perfusion of important organs of the body, reduce myocardial oxygen consumption, increase coronary perfusion, reduce myocardial cell necrosis, inhibit ventricular remodeling, and promote myocardial recovery by effectively assisting circulation, so as to save the life of patients. At present, there are more and more patients with severe acute heart failure, unable to leave the extracorporeal circulation machine after cardiac surgery, waiting for heart transplantation, and end-stage heart disease. Theref...

AI Technical Summary

Problems solved by technology

In most clinics in the world, the blood pump and the sewing ring are integrated, which makes it difficult to anastomose the apex of the left ventricle during surgery and is prone to bleeding, which greatly affects the promotion and application of ventricular assist devices.

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