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Methods and apparatuses using urea permselective diffusion through charged membranes

  • US 10,463,776 B2
  • Filed: 09/14/2016
  • Issued: 11/05/2019
  • Est. Priority Date: 12/31/2015
  • Status: Active Grant
First Claim
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1. A regenerative dialysis fluid system comprising:

  • a dialysis unit configured to generate used dialysis fluid including urea;

    a urea separation unit including a dialysis fluid chamber configured to receive the used dialysis fluid generated by the dialysis unit and a urea chamber, the urea separation unit configured to separate at least a portion of the urea from the used dialysis fluid into a secondary fluid located within the urea chamber and return the used dialysis fluid with the at least the portion of the urea separated out to the dialysis unit; and

    a urea removal unit configured to receive the secondary fluid with the separated urea from the urea chamber and remove at least a portion of the urea from the secondary fluid and return at least some of the secondary fluid to the urea chamber of the urea separation unit.

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