Magnetic suspension manual heart pump

An artificial heart and magnetic levitation technology, applied in medical science, suction devices, prostheses, etc., can solve the problems of non-active control, low integration, poor reliability, etc., and achieve the effects of pollution prevention, stable speed and reliable operation
CN101041091AInactive Publication Date: 2007-09-26SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2007-09-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a magnetic suspension artificial heart pump, comprising a frame, a motor, a magnetic bearing and a blood pump blade wheel, wherein, the blood pump blade wheel, a motor rotor and a magnetic bearing rotary magnetic ring form a combined rotor to be mounted in a blood separating sheath with blood inlet and outlet, a motor stator, a fixed magnetic ring of the magnetic bearing and a radial displacement sensor combine a combined stator to be arranged at an outer ring of the blood separating sheath to be fixed with the frame. The invention realizes magnetic suspension on the rotor, with reliable operation, and uses blood separating sheath to avoid polluting blood from heart pump most. The invention has compact structure, small volume, better integration, long service life, and better transplant property.
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Description

technical field

[0001] The invention relates to an artificial heart pump, in particular to a magnetic levitation artificial heart pump. Background technique

[0002] At present, a variety of artificial hearts have been used clinically, most of which are centrifugal blood pumps of ventricular assist devices. These blood pumps have some problems, such as: non-active control, poor reliability, thrombus, hemolysis, short lifespan and other problems. In the patent document with application number 02109770.4, the blood pump radial bearing is a passive magnetic bearing, so the blood pump radial impact resistance and reliability are not as high as the active bearing, and the internal structure of the entire impeller, rotor, and coupling piece has too many dead angles , Increase the chance of thrombus generation, so the blood pump must have a certain failure rate, and the life span is also short. In the patent document with application number 200510005303.3, there are many dead spo...

Claims

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