Blood oxygenation system
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United States of America Patent
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Jun 8, 1993
Issued Date -
N/A
app pub date -
Oct 26, 1989
filing date -
Oct 26, 1989
priority date (Note) -
Expired
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Abstract
A blood oxygenation system includes an oxygenator for oxygenating blood and a heat exchanger for regulating blood temperature. The heat exchanger includes a heat exchange coil that provides a flow path for a heat exchange media, the heat exchange coil is configured to define a heat exchange zone, and the oxygenator is disposed in heat transfer relationship with the heat exchange zone in order to transfer heat between the heat exchange coil and the oxygenator. The heat exchange coil may at least partially circumscribe the oxygenator and, preferably, be helically shaped and disposed coaxially over a membrane oxygenator. In one embodiment, single or multiple hollow fiber strands are wound onto a small diameter center core so that the fiber segments provide spiralling helical blood-flow pathways which increase oxygen/carbon dioxide exchange by secondary flow paths.
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