Two-stage cell wash process controlled by optical sensor

Details Two-stage cell wash process controlled by optical sensor Two-stage cell wash process controlled by optical sensor

1994-05-20

1995-12-26

Drodge, Joseph W.

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210 94, 210 961, 210787, 422 8209, 436 45, 436164, 494 1, 494 37, 604 5, 604 6, B01D 17038

Patent

active

054784794

ABSTRACT:
A method of washing salvaged blood includes separating higher density blood components from lower density blood components within a rotating centrifuge bowl. The separated blood components are washed with wash solution to remove free hemoglobin (Hgb), anticoagulant, cellular debris and other undesirable elements from the blood components. The previously separated blood components are re-suspended by braking the rotation of the centrifuge bowl to release the free Hgb, and other undesirable elements trapped in the red blood cell layer. The higher density blood components are then re-separated from the lower density blood components within the centrifuge bowl. The re-separated blood components are again washed with wash solution to further remove free Hgb and other undesirable elements from the blood components.

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