Magnetically suspended and rotated impellor pump apparatus and method
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United States of America Patent
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-
Aug 25, 1987
Issued Date -
N/A
app pub date -
Nov 4, 1986
filing date -
Mar 18, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A novel pump apparatus and method, the pump including a magnetically suspended and rotated impellor inside the pump housing. A novel sensor system detects the position of the impellor and thus provides the necessary information for operation of a suspension circuit for magnetically suspending the impellor. A valve member may be included as part of the impellor to prevent reverse flow in the event of impellor failure when used as a ventricular assist device.
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