| 简介 |
PROBLEM TO BE SOLVED : To provide a buoy suspension fractionation system capable of drawing and fractionating suspensions such as autologous blood and cerebrospinal fluid at the point-of-care.
SOLUTION : A separator 10 that uses centrifugation to fractionate a suspension such as blood comprises a separation container 12 and a buoy 30. The buoy 30 is carried in the separation container 12 and has a tuned density that is configured to reach an equilibrium position in a suspension. A guide surface 42 is carried on a buoy upper surface and is inclined to an accumulation position near a buoy perimeter. The buoy suspension fractionation system 10 can be used in a method of isolating a fraction from a suspension, and in a method of re-suspending particulates for withdrawal.
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