Oxygenator having an improved heat exchanger
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United States of America Patent
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-
Feb 24, 1987
Grant Date -
N/A
app pub date -
Apr 4, 1985
filing date -
Apr 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hollow fiber type blood oxygenator having an integrated and improved heat exchanger having a generally conical housing and core member between which a helically wrapped conduit is situated. The conduit has a plurality of parallel flutes. A housing and core member are formed with helical recessed regions which conform to the conical helix defined by the tubing or conduit. The tubing is formed with flattened opposing surfaces which mate with the corresponding recesses in the housing and core member. The mating on the flats on the tube or conduit to the corresponding flats in the recessed regions of the housing and core member allows a substantially tighter and more uniform fit which minimizes the dynamic blood priming volume.
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