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AssigneeBaxter Travenol Laboratories, Inc.
InventorsDavid S. Terman, Herbert M. Cullis, Mirza A. Khoja, Michael R. Sullivan
Estimating the term…
The apparatus includes a peristaltic pump for withdrawing whole blood from a patient, a device for centrifuging the blood to separate plasma from the whole blood, a plasma treatment chamber for receiving the plasma, a vehicle positioned within the chamber and having an immuno-adsorbent agent fixed thereon to interact and bond with an immunological reactant carried by the plasma that is passed through the chamber for removing the immunological reactant from the plasma, tubing connected to recombine the substantially immunological reactant free plasma with the remainder of the whole blood and a peristaltic pump for returning the recombined whole blood to the patient. According to the present invention the plasma treatment chamber has a variable volume so that the chamber can be used for treating sequentially different quantities of plasma.
In an apparatus for the extracorporeal treatment of diseases and of the type comprising means for withdrawing whole blood from a patient, means for separating plasma from the whole blood, means for treating the plasma including a chamber for receiving the plasma and a vehicle positioned within the chamber and having an immuno-adsorbent agent fixed thereon which will interact and bond with an immunological reactant carried by the plasma that is passed through the chamber, and means for recombining the substantially immunological reactant free plasma with the remainder of the whole blood and for returning the recombined whole blood to the patient, an improved means for treating the plasma including a variable volume plasma treatment chamber.
Dependencies are inferred from the claim text.