Centrifugation pheresis system

Details Centrifugation pheresis system Centrifugation pheresis system

1987-01-30

1989-05-30

Jones, W. Gary

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210 94, 210103, 210110, 210369, 2103801, 210782, 210789, 494 18, 494 45, 604 6, B01D 3300, B04B 502

Patent

active

048348902

ABSTRACT:
A system and method of separation of therapeutic components from blood. The system includes a dual member centrifuge and a disposable single use fluid transfer set. The set includes an elongated flexible separation chamber having an input port, a separated component output port and a residual fluid output port. The input port and the separated component output ports are located at opposite ends of the elongated separation chamber. The centrifuge includes a receiving chamber with a selectively formed annular slot therein. The separation chamber is positioned in the annularly shaped slot and rotated at a predetermined rotational velocity. Fluids such as whole blood flows through the separation chamber and are separated into various therapeutic components such as platelet rich plasma and residual concentrated red blood cells. Platelet rich plasma can be drawn off as the separated therapeutic component. An alternate two part transfer set provides for highly efficient platelet pheresis. The platelet rich plasma is separated from the residual red blood cells in a first part. The platelet rich plasma flows into the second part and is separated into platelet poor plasma and platelets. The platelet poor plasma can be drawn off and returned to a donor or collected. The platelet concentrate can then be accumulated in a separate container.

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