Blood pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 12, 2001
Grant Date -
N/A
app pub date -
Jan 28, 1999
filing date -
Jan 28, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A blood pump comprising a pump mechanism having an outer sleeve, an inner sleeve, and an impeller. The pump mechanism is movable between a closed and preferably retracted position wherein one or both of an inlet port and an outlet port are sealed by the inner and/or outer sleeve for inserting the pump mechanism into the heart, and an open and preferably extended position wherein the inlet and outlet ports are open to allow the impeller to pump blood through the ports. The pump mechanism preferably retracts so that it has less length and is more readily maneuvered when it is in its closed position. Also disclosed are a bearing portion received within a cap of the impeller with a flow of lubricating liquid between the bearing portion and cap, and a method of using the pump.
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Family
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