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Electric-liquid type heart extracorporeal circulation pulsatory blood pump

An extracorporeal circulation, electro-hydraulic technology, applied in the field of medical devices, can solve the problems of no control device, large aerodynamic noise, inconvenient use, etc., and achieve the effect of eliminating cross-infection, friendly interface, and convenient use

Inactive Publication Date: 2008-03-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Electric-liquid type heart extracorporeal circulation pulsatory blood pump

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Embodiment Construction

[0017] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] The structure of the electro-hydraulic cardiac extracorporeal circulation pulsating blood pump of the present invention is shown in Figure 1. The two ends of the blood pump housing 6 are respectively fixed into the blood vessel 2 and the outlet blood vessel 3, and a blood bag 1 is placed in the blood pump housing 6, and the blood The two ends of the capsule 1 are connected with the inlet blood vessel 2 and the outlet blood vessel 3 respectively, a hydraulic nozzle 7 is fixed at the middle end of the blood pump casing 6, and one end of the hydraulic pipe 12 is connected with the hydraulic nozzle 7 and connected with the blood pump casing through the hydraulic nozzle 7 The inner space of the body 6 is connected, and the other end of the hydraulic pipeline 12 is connected with the piston cavity 13 . The inlet blood vessel 2 and the outlet ...

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Abstract

The present invention relates to an electro hydraulic-typed blood pulsation pump for the heart cardiopulmonary bypass. The shell of the blood pump is provided with a blood package, which is arranged in the inlet and out blood vessels at the two ends of the blood pump shell. The liquid is pumping in or pumping out of the pump by a piston mechanism, therefore the blood package in the pump can shrink and expand and the blood can pump in and pump out of the blood package. A butterfly-typed valve with single direction is arranged in two ends of his inlet and out blood vessels. The blood can flow in and flow out of the blood package in single direction; therefore the blood supply function of the heart is formed. The circuit, the pulse and the blood flow are controlled by the industrial control computer. By adjusting the rotating speed of the motor, the treatment effect is guaranteed according to the settled moving parameter.

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...

Claims

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Application Information

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IPC IPC(8): A61M1/10
Inventor 潘钢王维俊
Owner SHANGHAI JIAO TONG UNIV
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