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Method and apparatus for cleaning a dialysate circuit downstream of a dialyzer

  • US 5,603,902 A
  • Filed: 05/31/1995
  • Issued: 02/18/1997
  • Est. Priority Date: 07/16/1993
  • Status: Expired due to Term
First Claim
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1. An apparatus for reducing deposits in a portion of a dialysate circuit located downstream of a membrane fluid treatment device in a dialysis machine while not contaminating a portion of the dialysate circuit located upstream of the membrane fluid treatment device, said apparatus comprising:

  • a first tubing connector selectively connectable and disconnectable with a bypass block connector of the dialysate circuit;

    a backflow prevention valve in fluid communication with the first tubing connector;

    an injection connector in fluid communication with the backflow prevention valve and adapted for fluid communication with a source of fluid; and

    a second tubing connector selectively connectable and disconnectable with the dialysate circuit in fluid communication with the injection connector;

    wherein said backflow prevention valve is oriented to allow flow only in a direction from the first connector to the second connector.

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