Blood pump
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United States of America Patent
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-
Mar 26, 1996
Issued Date -
N/A
app pub date -
Nov 10, 1994
filing date -
Jun 28, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dynamic blood pump includes a rotating core member and rotating ring portion effective to pre-spin blood before the blood enteres helical pumping channels of the pump. The blood is pumped and further rotated as it moves axially along the helical channels toward a centrifugal section of the pump. At the centrifugal pumping section circumferential velocity differentials are also controlled to diminish damage to the blood. Outwardly of the centrifugal pumping section, a forced-vortex pumping section communicates the pumped blood to an exit port.
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