×

Method and composition for removing uremic toxins in dialysis processes

  • US 8,066,658 B2
  • Filed: 05/13/2009
  • Issued: 11/29/2011
  • Est. Priority Date: 11/13/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A cartridge for use in a dialysis system for removing toxins comprising:

  • a body having an inlet end and an outlet end;

    an interior including at least four layers, the layers including a first layer of a resin selected from the group consisting of zirconium phosphate having a pH of approximately 2.5 to about 5 and urease, a second layer of a resin selected from the group consisting of zirconium oxide having a pH of approximately 9 to about 13 and urease, a third layer of zirconium phosphate, and a fourth layer of zirconium oxide having a pH of approximately 6.5 to about 7.5;

    wherein the first layer is different from the second layer; and

    the interior being so constructed and arranged that a fluid entering the interior from the inlet end flows through the first layer, then the second layer, then the third layer, and then the fourth layer.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×