Rigid shell expansible blood reservoir, heater and hollow fiber membrane oxygenator assembly
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United States of America Patent
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-
Jan 3, 1984
Grant Date -
N/A
app pub date -
Feb 22, 1982
filing date -
Feb 22, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A closed, air-free blood oxygenator assembly having integrated into one self-supporting unit a rigid-shell blood reservoir having an easily visible, concavity which is closed by an attached expansible, flexible membrane which overlies the concavity and forms a variable volume liquid and air-tight blood reservoir, and an attached blood heater, and a hollow fiber membrane oxygenator. The assembly stores, heats, oxygenates and purifies blood by passing oxygen through the lumens of a mat of small diameter gas-permeable hollow fibers supported on a cylindrical core as blood flows over the outside surfaces of the fibers in a small, easy to use, safe, integrated unit which avoids blood contact with ambient air as blood circulates through the assembly during surgery.
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