Centrifuge bowl for separating particles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Oct 3, 2002
app pub date -
Mar 28, 2001
filing date -
Mar 30, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A novel centrifuge bowl for processing particles suspended in a fluid is disclosed. The centrifuge bowl includes an annular cavity concentrically located about the rotation axis for suitably separating particles of similar densities but of different diameters. The cavity is preferably configured to have an annular cross sectional area, which is parallel to the rotation axis, that increases from a centrifugal side of the cavity toward a centripetal side of the cavity. This configuration allows to generate an almost rigidly rotating field upon rotation of the centrifuge bowl, which field helps to uniformly disperse Coriolis force throughout the circumference of the cavity to avoid turbulent mixing of the particles. In an alternative embodiment, the cavity is surrounded by an outer cavity for separating particles according to density before processing them through the inner cavity. This construction is particularly suitable for processing whole blood to harvest platelet-rich-plasma with reduced level of white blood cell contamination.
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