heart assist device

Abstract

The invention discloses a heart assist device, comprising: a communication pipe, including a first inflow part, a second inflow part, an outflow part and a confluence part communicating with each other, and the confluence part passes through the first inflow part and the second inflow part. Two inflow parts are connected to the outflow part, and the outflow part includes a connection end surface connected to the confluence part, and the center perpendicular line of the connection end surface intersects the center perpendicular line of the outflow end surface; the blade is connected to the The inside of the outflow part is used to push the fluid in the communication pipe to flow out from the outflow end surface of the outflow part; and the driving device is located outside the outflow part, and the outflow part includes the The outflow ends are opposite to the bottom wall, the blades and the drive device are respectively located on both sides of the bottom wall, and the drive device is used to drive the blades to rotate. The cardiac assist device has a right ventricular replacement function.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a heart assist device. Background technique [0002] For single ventricular physiological diseases, the current common solution is to perform Fontan surgery, the basic principle of which is to use the pressure difference between the systemic vein and the pulmonary artery to guide the vena cava blood bypassing the functional right ventricle directly into the pulmonary circulation and return to the left The atrium separates the venous blood from the arterial blood and allows the venous blood to flow through the lungs for oxygenation. However, due to the lack of pressurization of the right ventricle during the blood flow process after the Fontan operation, this objectively requires that the pulmonary vascular resistance must be lower than 6wood / m 2 . However, some patients have elevated pulmonary vascular resistance early in life, which makes it impossible for these patien...

AI Technical Summary

Problems solved by technology

However, due to the lack of pressurization of the right ventricle during the blood flow process after the Fontan operation, this objectively requires that the pulmonary vascular resistance must be lower than 6wood / m 2

However, some patients have elevated pulmonary vascular resistance early in life, which makes it impossible for these patients to perform Fontan surgery; although other patients have received Fontan surgery, the pulmonary vascular resistance gradually decreases with age. increased, and eventually prone to circulatory collapse

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