Method for obtaining platelets

Details Method for obtaining platelets Method for obtaining platelets

1992-03-05

1993-11-02

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210782, 210787, 210789, 210806, B01D 3700, B01D 2126

Patent

active

052581268

ABSTRACT:
A method is provided for processing donated blood, particularly a platelet-containing solution such as platelet-containing plasma, involving separating blood into a red cell containing sediment layer and a supernatant layer, and passing the supernatant layer through a filter until the filter is blocked, thereby leaving platelets to be harvested. The preferred filter comprises a porous medium having a plurality of zones of progressively increasing density.

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