Blood collection and centrifugal separation device including a v

Details Blood collection and centrifugal separation device including a v Blood collection and centrifugal separation device including a v

1990-09-21

1991-08-13

Jones, W. Gary

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Discharge of treated material

210136, 210514, 210515, 210782, 137843, 251368, 422101, 436177, 494 2, 494 16, B01D 2126

Patent

active

050394010

ABSTRACT:
A device is disclosed that causes phase separation of whole blood, using much lower centrifugal forces. As a result, lymphocytes are separated from blood cells having specific gravities of 1.08 g/ml or higher. The device features a separation chamber arranged so that its long dimension or axis is parallel, not perpendicular, to the spin axis, and a valve that allows automatic removal of the lighter phase(s). The valve is constructed to respond only to the head of liquid pressure generated by an increased centrifugal force, and not to that increased force alone.

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