Electric-liquid type heart extracorporeal circulation pulsatory blood pump

Abstract

The invention relates to an electro-hydraulic cardiac extracorporeal circulation pulsating blood pump. A blood bag is arranged in the blood pump casing. The blood bag is installed on the blood-inlet and bleeding pipes at both ends of the blood pump casing. The blood sac in the pump body contracts and expands, so that blood can be pumped into and pressed out of the hemorrhage sac, and butterfly-shaped one-way valves are installed in the inflow and outflow pipelines at both ends, so that blood can flow in and out of the pump sac in one direction, forming the blood supply function of the heart, controlled by industrial control The computer controls the beating frequency and the extruded blood flow through the control circuit respectively, so as to ensure the blood supply balance required by the human body. The industrial control computer can interact with the screen and keyboard to accept the selection of the number of beats and the flow rate of extruded blood. By adjusting the speed of the control motor, it is guaranteed to achieve the therapeutic effect according to the predetermined value of the set exercise parameters.

Description

technical field [0001] The invention relates to an electro-hydraulic cardiac extracorporeal circulation pulsating blood pump, which is an extracorporeal blood circulation device that uses electro-hydraulic power to generate pulsation, and is used for improving the condition of heart failure before and after surgery for heart failure, treating and rescuing heart failure facing death patient. In the field of medical device technology, Background technique [0002] Due to the development of various heart diseases, it will gradually evolve into chronic congestive heart failure, and finally enter the terminal stage of heart failure and die due to decompensation. Taking heart failure as an example, although surgical technology and myocardial protection technology are constantly improving, there are still patients who cannot be separated from extracorporeal circulation due to cardiogenic shock after cardiac surgery. For these patients who are decompensated or unable to escape fro...

AI Technical Summary

Problems solved by technology

[0004] 1. The pulsatile blood pump with pneumatic power has too large air source equipment, which is not conducive to the mobile use of the equipment; and the pneumatic power noise is relatively large

[0005] 2. Without a control device, the working state of the blood pump cannot be adjusted at will

[0006] 3. Failure to provide the display of status data when the blood pump is working is not conducive to real-time monitoring

[0007] 4. The replacement operation is complicated and inconvenient to use

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