Enhanced yield platelet collection systems and methods

Details Enhanced yield platelet collection systems and methods Enhanced yield platelet collection systems and methods

1992-10-22

1994-12-06

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210194, 2103601, 210361, 210369, 210787, 210806, 494 37, B01D 2126

Patent

active

053708024

ABSTRACT:
Systems and methods for separating a suspension of plasma and platelets from whole blood rotate a chamber about an axis to create within the chamber a low-G zone radially close to the axis and a high-G zone spaced radially further from the axis than the low-G zone. The systems and methods introduce whole blood into an inlet region of the chamber to initiate separation of red blood cells toward the high-G zone of the inlet region. This creates a strong flow of plasma that moves radially toward the low-G zone of the inlet region and elutes platelets into suspension with it. The systems and methods direct the radial flow of plasma and eluted platelets within the inlet region to a port in the inlet region for transport out of the chamber. The systems and methods also drag the interface into this radial plasma flow, eluting even the largest of platelets into suspension for collection.

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