Blood donation unit
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United States of America Patent
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May 31, 1983
Grant Date -
N/A
app pub date -
Aug 29, 1980
filing date -
Aug 29, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A blood donation unit in which a reduced outside diameter phlebotomy needle is employed to minimize donor discomfort. The blood flow if, however, maintained at a flow level similar to that obtained with standard gauge phlebotomy needles by a roller pump which provides a predetermined pressure differential between the ends of the phlebotomy needle. The blood is mixed with a predetermined ratio of anticoagulant immediately after passing through the phlebotomy needle. The ratio of whole blood to anticoagulant is independent of the volume of whole blood collected.
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