Red cell apheresis method

Details Red cell apheresis method Red cell apheresis method

1994-03-01

1995-02-07

Prebilic, Paul

Surgery

Blood drawn and replaced or treated and returned to body

Constituent removed from blood and remainder returned to body

604 4, 604 5, 210782, A61M 3700

Patent

active

053871871

ABSTRACT:
The present invention provides an apheresis apparatus and method for separating blood. A phlebotomy needle draws anticoagulated whole blood from a donor into a separation chamber. The separation chamber separates plasma from higher density blood components. The plasma is displaced to a plasma collection bag. The separation process is terminated and the higher density blood components remaining in the separation chamber are diluted with saline solution and are returned to the donor via the phlebotomy needle. Anticoagulated whole blood is drawn again from the donor into the separation chamber. The separation chamber again separates plasma from higher density blood components in the separation chamber. The separation process is then terminated and the donor is disconnected. The higher density blood components remaining in the separation chamber are displaced to a bag for collecting higher density blood components and is rejuvenated with additive solution.

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Elias, M. K., et al., "In vitro evaluation of a high-efficiency leukocyte adherence filter", Ann. Hemtol. 63:302-306 (1991).
de Graan-Hentzen, Y. C. E., et al., "Prevention of primary cytomegalovirus infection in patients with hematologic malignancies by intensive white cell depletion of blood products", Transfusion 29:757-760 (1989).
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