Ascending aorta type ventricular assisting device

Abstract

The invention discloses an ascending aorta type ventricular assisting device. The ascending aorta type ventricular assisting device comprises an inner layer and an outer layer, wherein two ends of the outer layer are connected with artificial blood vessels, and the top of the device is sealed by an artificial valve or is connected with the artificial valve during an operation; the inner layer and the outer layer are connected with an air pump through a tube, and the parts between the inner layer and the outer layer can inflate or inhale synchronously with the heart by the aid of the air pump and a pace-making lead connected with the air pump; the outer layer is made of a hard silica gel material, and the inner layer is made of a soft encapsulating material. By the aid of the ascending aorta type ventricular assisting device, coronary blood supply can be increased, the cardiac function of patients with end-stage heart disease is improved, the survival time of the patients is prolonged, and the living quality of the patients is improved.

Description

technical field [0001] The invention relates to a ventricular assist device, in particular to an ascending aorta type ventricular assist device. Background technique [0002] At present, one of the clinically recognized and effective means of treating end-stage heart disease is heart transplantation. However, due to the severe scarcity of heart donors, it is difficult to meet clinical needs. At the same time, many problems such as immune rejection of patients after transplantation are difficult to solve. Transplantation has never been the most commonly used treatment. In recent years, as the technology of artificial heart has matured day by day, coupled with its various advantages such as no ethical issues, no immune rejection and various problems caused by anti-rejection drugs, artificial heart has become an important alternative to heart transplantation. Artificial hearts can be divided into total artificial hearts and ventricular assist devices according to their uses. A...

AI Technical Summary

Problems solved by technology

Artificial hearts can be divided into total artificial hearts and ventricular assist devices according to their uses. Among them, total artificial hearts are due to their large size, complicated implantation techniques, and high incidence of postoperative complications such as infection, embolism, hemolysis, and multiple organ failure. Defects such as poor durability limit its clinical promotion and application, and the current ventricular assist device also has the same problem of destroying the original myocardial tissue of the heart when it is implanted, and there is no pulsating blood flow, blood cell destruction, and left atrium when the device is working. And the left ventricle is always in a filling state, and the built-in pump cannot be replaced in time after failure.

Another clinical method that is more commonly used to improve cardiac function is the application of intra-aortic balloon pump (IABP). However, due to the limited capacity of the balloon, the incidence of bleeding ev

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