Blood separation device
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
Aug 29, 1997
filing date -
Aug 29, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A separator and a method for quickly separating an aliquot of plasma or serum from cells in a sample of blood is provided herein. The separator includes a housing which defines a separation container, an outlet aperture, a valve which selectively seals the outlet aperture, and a spinner. Initially, the spinner rotates the housing at a separation speed which causes the heavier cells to separate from the serum or plasma. Subsequently, the spinner rotates the housing at a faster, expellant speed which causes the valve to open and the cells to be expelled through the outlet aperture. After the cells have been expelled from the separation container, rotation of the housing is stopped and the serum or plasma is collected from the separation container. Since the separator provided herein does not use a separation gel, the separator is easy to clean and reusable.
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