Extracorporeal blood oxygenation system having integrated blood pump, heat exchanger and membrane oxygenator
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United States of America Patent
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-
Jun 23, 1998
Grant Date -
N/A
app pub date -
Oct 31, 1995
filing date -
Oct 31, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An extracorporeal blood oxygenation system comprising an integrated blood pump/heat exchanger/membrane oxygenator assembly which is mountable upon, and engageable with, a separate motor/drive assembly. The blood pump of the system incorporates a novel axial/centrifugal impeller assembly. An optional blood reservoir may be incorporated into the system to receive and contain venous return and/or surgical site blood. Also, an optional arterial filter may be incorporated into the system for filtering the oxygenated blood before the blood is returned to the patient. The pump/heat exchanger/membrane oxygenator component is preferably constructed such that heat exchange fluid which is being infused into the heat exchanger will pass through and/or in contact with a portion of the membrane oxygenator so as to further maintain the temperature of blood as it passes through the membrane oxygenator.
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