Purge flow control in rotary blood pumps
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 2, 1992
Grant Date -
N/A
app pub date -
Jan 11, 1990
filing date -
Jan 11, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blood pump includes a housing 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 passes through a seal which is purged from the non-blood side by fluid. The fluid side of the seal contains a pumping element to modulate the fluid pressure, thereby controlling the purge fluid flow.
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Family
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Cited Art Landscape
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