Apparatus for driving blood pump
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United States of America Patent
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-
Mar 31, 1992
Grant Date -
N/A
app pub date -
Jan 23, 1990
filing date -
Jan 31, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for driving a blood pump such as an artificial heart. The apparatus comprises a first pressure pulse generator, a second pressure pulse generator, a pressure detector for detecting the pressure produced by the first pressure pulse generator, a flow sensor for detecting the flow rate of blood passing through the pump, a selector device, and an electrical control unit. Normally, the first pressure generator is connected with the blood pump via the selector device. When the flow rate detected by the flow sensor decreases and the pressure detected by the pressure detector gets out of a normal range of pressures, the electrical control unit causes the selector device to disconnect the first pressure pulse generator from the blood pump and to connect the second pressure pulse generator with the blood pump.
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