Heart assistant device

Abstract

The invention discloses a heart assistant device. The device comprises a first sacculus, a second sacculus and a third sacculus which are independent one another, a first air pipe, a second air pipe and a third air pipe which are independent one another, a first drive device, a second drive device, a third drive device and a control device, wherein an intermediate cavity is formed between the first sacculus and the third sacculus, and the second sacculus is arranged in the intermediate cavity; the first air pipe, the second air pipe and the third air pipe are respectively communicated with the first sacculus, the second sacculus and the third sacculus; the first drive device, the second drive device and the third drive device are respectively used for inflating or exhausting the first sacculus, the second sacculus and the third sacculus; and the control device is used for controlling the first drive device, the second drive device and the third drive device, so that the heart assistant device can circularly realize first state and second state. In the first state, the first sacculus and the second sacculus shrink, the third sacculus expands, and fluid flows into the intermediate cavity; and in the second state, the first sacculus expands, the third sacculus expands or shrinks, and the second sacculus gradually expands to push the fluid to flow out of the intermediate cavity. The heart assistant device is used for assisting heart to work.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a heart assist device. Background technique [0002] "Intra-aortic Balloon Pump" (Intra-aortic Balloon Pump, IABP), as a temporary cardiac assist device, is widely used clinically, mainly for low cardiac output syndrome or acute Myocardial infarction, to increase coronary blood supply, reduce cardiac oxygen consumption, and achieve a balance between oxygen supply and oxygen demand. Its working principle is: during the systole period, the balloon retracts, the afterload of the left ventricle decreases, and the oxygen consumption of the heart is reduced; during the diastole period, the balloon expands, increases the diastolic blood pressure, increases the coronary blood supply, thereby increasing the oxygen consumption of the heart. for. However, in a strict sense, IABP cannot be called a heart assist device (especially a left heart assist device). The inflation of th...

AI Technical Summary

Problems solved by technology

However, in a strict sense, IABP cannot be called a heart assist device (especially a left heart assist device). The inflation of the IABP balloon leads to two-way movement of blood flow, which has excellent performance in improving coronary perfusion, but cannot Physiologically unidirectional blood flow and therefore less efficient in assisting the heart to do work

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