Variable volume plasma treatment chamber for an apparatus for the extracorporeal treatment of disease
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United States of America Patent
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Sep 23, 1980
Grant Date -
N/A
app pub date -
Feb 8, 1979
filing date -
Feb 8, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.
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