Method and apparatus for purging tubing network of blood processing system
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United States of America Patent
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-
Dec 19, 1989
Issued Date -
N/A
app pub date -
May 13, 1987
filing date -
Dec 5, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method and apparatus for purging air from a tubing network finds particular utility as a component part of a blood constituent processing system. Collection and return needles of a disposable tubing network are initially contained within a common antiseptic enclosure. A purge fluid (e.g., saline solution) may then be introduced into the interior chamber of the enclosure via one of the needles and withdrawn from the interior chamber via the other of the needles. Air entrained in the tubing network may thus be trapped within the common enclosure itself and/or vented therefrom via a one-way valve and hydrophobic microbe filter and/or the entrained air pockets may be encouraged to flow to a separate suitable air trap location of the tubing network whereby the network is purged of air.
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