A kind of intraventricular pulsatile blood pump

Abstract

The invention discloses a pulsating blood pump in the ventricle. The pulsating blood pump is fixedly arranged at the apex of the ventricle to generate an open pulsating effect. The pulsating blood pump is generally in the shape of a jellyfish and includes a bell-shaped body and a driving source. , the opening of the bell-shaped body is opposite to the outlet of the ventricle, the driving source drives the bell-shaped body to perform contraction or relaxation movement, the contraction or relaxation movement of the bell-shaped body drives the blood in the ventricle to eject directional blood to the artery, and in the bell-shaped body A swirling blood flow field is formed between the inner wall and the inner wall of the ventricle. The open pulsation mechanism of the invention not only provides pulsating blood flow to assist ventricular function, but also optimizes the flow field and pressure distribution in the ventricular chamber, and has better biocompatibility compared with existing blood pumps.

Description

technical field [0001] The invention relates to the field of ventricular assist devices, in particular to an intraventricular pulsating blood pump. Background technique [0002] Ventricular assist device (blood pump) is a mechanical circulatory assist device made of artificial materials to assist the heart pumping function of patients with end-stage heart failure. After years of development, this type of device has entered clinical application in European and American countries, and Successfully saved or extended the lives of a large number of heart disease patients. [0003] At present, the vast majority of blood pumps that have been put into clinical application or are in the research and development stage in the world are based on the basic principle of rotary impeller machinery, using the rotational force between the blades and blood, using centrifugal or axial flow blade rotation To achieve the function of pumping blood, its main mode of action is to connect the inlet ...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the above-mentioned technical problems, the object of the present invention is to provide an intraventricular pulsating blood pump that solves the shortcomings of existing axial flow or centrifugal blood pumps and other pulsating blood pumps that are closed outside the ventricle and have poor biocompatibility.

Images