Method for handling blood sample to ensure blood components are isolated
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United States of America Patent
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-
Aug 26, 2003
Grant Date -
Oct 10, 2002
app pub date -
Apr 9, 2001
filing date -
Apr 9, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of harvesting platelet rich plasma from whole blood, comprising adding an aliquot of blood via the inlet tube of a rotating flexible centrifuge bag comprising inlet and outlet tubes sandwiched between doughnut shaped flexible sheets sealed together at the outer and inner perimeters. The whole blood separates radially into fractions. The distal end of the outlet tube is in flow communication with a desired fraction. The desired fraction is removed from the rotating bag via the outlet tube and withdrawal is terminated when an undesired fraction is detected to be near the distal end of the outlet tube. An alternative method comprises adding an aliquot of blood via the inlet channel of a rigid centrifuge container, said container having an interior collection chamber for receiving said whole blood and having a generally off-centered figure eight-shaped side cross-sectional configuration.
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