Patent ID: 9656013
Date: 2017-05-23
CPC Classifications: A61M,B01D,G16H

Claim:
1. An automated whole blood separation system comprising a disposable fluid flow circuit and a durable controller configured to cooperate with and control flow through the fluid circuit, the disposable fluid circuit comprising: a whole blood fluid flow path with a whole blood inlet connected to a unit of whole blood; a cell preservation solution flow path in flow communication with one of the whole blood fluid flow path and a first outlet fluid flow path for separated red cells and having an inlet connected to a source of cell preservation solution; a separator including outer housing and inner rotor mounted within the housing for rotation relative to the housing, a gap being defined between an outer surface of the rotor and an inner surface of the housing, at least one of the outer surface of the rotor or inner surface of the housing comprising a filter membrane configured to allow the passage of plasma therethrough while substantially blocking red cells, the outer housing including an inlet in fluid communication with the whole blood and/or cell preservation solution flow paths and in flow communication with the gap for directing whole blood and/or cell preservation solution into the gap, the housing including a first outlet communicating with the gap and the housing and/or rotor including a second outlet communicating with the side of the membrane facing away from the gap; the first outlet communicating with the gap being in flow communication with the first outlet fluid flow path including a leukocyte reduction filter connected to a first storage container for receipt of red cells; and the second outlet being in flow communication with a second outlet fluid flow path connected to a second storage container for receipt of plasma; the durable controller comprising a programmable control system configured to close the whole blood fluid flow path and the second outlet fluid flow path upon detecting that the unit of whole blood is empty, and to flow blood preservative solution to flush blood remaining in the system into the first storage container and to increase the volume of product in the first container to a level suitable for storage.