Pheresis apparatus

Details Pheresis apparatus Pheresis apparatus

1983-08-01

1984-08-07

Jenkins, Robert W.

Surgery

Blood drawn and replaced or treated and returned to body

Constituent removed from blood and remainder returned to body

494 10, 494 27, 494 35, 494 37, A61M 103

Patent

active

044641672

ABSTRACT:
This invention relates to an improvement in two-port centrifuge bowls in which component yield is enhanced by utilizing the centrifuge bowl for eluttriation, as well as centrifugation. In a particular embodiment, platelet yield is improved by terminating flow of anticoagulated whole blood from the donor to the bowl and pumping low density fluid, preferably plasma, back into the bowl at a relatively high rate to elutriate centrifugally separated cells in the bowl.

REFERENCES:
patent: 4185629 (1980-01-01), Cullis
patent: 4187979 (1980-02-01), Cullis et al.
patent: 4215688 (1980-08-01), Terman
patent: 4223672 (1980-09-01), Terman
"Haemonetics 30 Cell Separator Blood Processor", List No. 5830, Owner's Operating & Maintenance Manual, Mar. 1978.
"The Preparation of Leukocyte-Poor Red Blood Cells: A Comparative Study", by H. T. Meryman et al., Transfusion, May-Jun. 1980.
"A Standardized Technique for Efficient Platelet and Leukocyte Collection Using the Model 30 Blood Processor", by Aisner et al., Transfusion, Sep.-Oct. 1976.
"Haemonetics 102 Cell Washing System", List No. 6906, Owner's Operating and Maintenance Manual, Oct. 1978.

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