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Pheresis apparatus

  • US 5,348,533 A
  • Filed: 08/27/1992
  • Issued: 09/20/1994
  • Est. Priority Date: 08/27/1992
  • Status: Expired due to Fees
First Claim
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1. Apparatus comprising:

  • a) a draw needle for drawing whole blood from a donor;

    b) an input buffer in fluid communication with said draw needle via a first conduit;

    c) a second conduit for fluidly coupling anticoagulant fluid to said first conduit for mixing with said drawn blood;

    d) a separator for separating drawn blood into at least two fractional components, said separator having an input port and an output port;

    e) a third conduit for fluidly coupling the input buffer to the input port;

    f) a component container;

    g) a fourth conduit for fluidly coupling the output port to said container;

    h) an output buffer;

    i) a fifth conduit in fluid communication with said output buffer and said fourth conduit;

    j) a sixth conduit in fluid communication between said output buffer and said third conduit;

    k) a return needle in fluid communication with one or more of said output buffer or said component container for transferring fluid therefrom to said donor; and

    l) a seventh conduit for fluidly coupling said output buffer to a source of physiological solution.

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