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Method and apparatus for a hemodiafiltration delivery module

  • US 20020104800A1
  • Filed: 02/07/2002
  • Published: 08/08/2002
  • Est. Priority Date: 02/07/2001
  • Status: Active Grant
First Claim
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1. In a blood dialysis system including a dialysis machine and an extracorporeal circuit, a diafiltration module adapted to be connected to at least one of the dialysis machine and the extracorporeal circuit, the diafiltration module comprising:

  • a first conduit having a first end and an opposing second end, the first end for receiving a first fluid from the dialysis machine and the second end for discharging a dialysate fluid to the dialysis machine;

    a second conduit in selective communication with the first conduit such that the second conduit selectively receives a diverted amount of the first fluid from the first conduit, the second conduit communicating with at least one sterilizing filter for filtering the diverted amount of the first fluid to produce a substitution fluid, wherein one end of the second conduit is configured to deliver the substitution fluid to the extracorporeal circuit; and

    a control unit responsive to at least one of (a) a first detected characteristic of one of the first fluid and the dialysate fluid and (b) a second detected characteristic of blood within the extracorporeal circuit, the control unit being configured to prevent flow of the substitution fluid to the extracorporeal circuit when at least one of the first and second characteristics meets a prescribed criteria.

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