Extracardiac ventricular assist device and use method thereof

Abstract

The present invention discloses an extracardiac ventricular assist device and a use method thereof, solves problems of large size and large cardiac trauma of a ventricular assist device in the prior art, and has a beneficial effect of assisting the heart to pump out blood flow in a physiological state while not changing an original blood pumping passage and form. A specific scheme is as follows: the extracardiac ventricular assist device comprises a control unit, fixing bands capable of being bound to an outer side of the heart are arranged on two sides of the control unit respectively, the fixing bands and the control unit are connected with contraction control parts through contraction components, the contraction control parts are provided with sensors capable of collecting ventricular contraction information, the sensors are connected with control chips arranged in the contraction control parts, the control chips are connected with series circuits arranged in the contraction components to control contraction action of the contraction components, and the control chips are connected with the control unit.

Description

technical field [0001] The invention relates to the field of clinical medicine, in particular to an extracardiac ventricular assist device and a method of use. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Heart failure (Heart failure), as the terminal stage of many cardiovascular diseases, refers to the failure of the venous return blood to be fully pumped out of the heart due to cardiac systolic and / or diastolic dysfunction, resulting in blood stasis in the venous system and blood stasis in the arterial system. Insufficient perfusion, causing dyscirculatory syndrome. The curative effect of traditional drugs and electrophysiological methods on end-stage heart failure is unsatisfactory. At present, the main treatment methods include heart transplantation, use of ventricular assist device, and use of total artificial heart. Among them, ...

AI Technical Summary

Problems solved by technology

[0005] (1) The current clinical treatment methods represented by ventricular assist devices provide continuous blood flow instead of pulsating blood flow under normal physiological conditions, which will cause damage to the aortic / pulmonary valve and arterial vessel wall, and will also Affect the perfusion of organs;

[0006] (2) The implantation of a ventricular assist device requires drilling of the ventricular muscle, which is traumatic and irreversible;

[0007] (3) Although the ventricular assist device can assist the heart to complete the blood pumping function, unilateral assistance can easily affect the original healthy side ventricle's blood pumping function;

[0008] (4) The mechanical external force of the ventricular assist device will cause blood damage, causing a series of complications such as hemolysis and coagulation;

[0009] (5) Existing cardiac assist devices cannot dynamically change the output in real time according to the actual needs of patients, so as to meet the real-time demands of patients on cardiac output under different physiological states

[0010] (6) Existing heart assist devices have the problems of large size and poor stability

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