Viscous seal blood pump
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United States of America Patent
Stats
-
Mar 24, 1992
Grant Date -
N/A
app pub date -
Nov 21, 1989
filing date -
Nov 21, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blood pump includes a housing having an inlet and outlet communicating with a pump chamber. A rotor received in the pump chamber is rotated by a drive motor. A drive shaft extending between the motor and rotor is sealed by a fluid seal. The housing includes an opening defining a clearance with the drive shaft on the order of one or two thousandth (0.002) of an inch. A viscous, biocompatible fluid is utilized as the seal fluid.
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Family
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Cited Art Landscape
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