Blood phase separator device
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United States of America Patent
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-
Nov 29, 1983
Grant Date -
N/A
app pub date -
May 4, 1981
filing date -
May 4, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blood collection device for receiving whole blood adapted to be centrifuged into phases of lighter and heavier specific gravity includes a container with proximal and distal ends and a penetrable stopper at the proximal end. A separator assembly inside the container includes a receptacle with a thixotropic barrier material therein. An aperture in the receptacle faces toward the distal end of the container. The barrier material has a specific gravity intermediate the specific gravities of the lighter and heavier phases of blood and is adapted to flow under its own influence through the aperture during centrifugation. The barrier material then travels to a position intermediate the lighter and heavier phases of blood separated during centrifugation and adheres to the inside wall of the container to form a barrier.
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