Membrane apparatus/process adapted for plasmapheresis

Details Membrane apparatus/process adapted for plasmapheresis Membrane apparatus/process adapted for plasmapheresis

1983-01-10

1987-08-18

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

2101952, 2104332, 210927, 604 6, B01D 1300

Patent

active

046875808

ABSTRACT:
Apparatus/process for the withdrawal and return of liquid materials from a donor source, comprising means for withdrawing whole blood from a mammalian donor; a membranous blood filtration cell which includes a membrane separator/filter, a compartment downstream therefrom for receiving a blood plasma fraction and a compartment upstream thereof for receiving a blood cellular component fraction; conduit means for communicating the withdrawal means and an inlet end of the upstream compartment; a collection vessel; conduit means for communicating an outlet end of said upstream compartment and said collection vessel; means for determining the volume of liquid material withdrawn from the donor source during a withdrawal stage; means for back-filtering and returning liquid material from said collection vessel to the donor source; a second collection vessel; and conduit means for communicating an outlet end of the downstream compartment and the second collection vessel.

REFERENCES:
patent: 4191182 (1980-03-01), Popovich et al.
patent: 4343705 (1982-08-01), Legg
patent: 4372846 (1983-02-01), Yamagami et al.
patent: 4397747 (1983-08-01), Ikeda
patent: 4401566 (1983-08-01), Igari et al.
patent: 4411792 (1983-10-01), Babb

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