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US 9,308,308 B2Granted
Methods of performing dialysis using an electrodeionization system
AssigneesBaxter International Inc., Baxter Healthcare S.A., Millipore Corporation
InventorsYuanpang Samuel Ding, Ying-Cheng Lo, Joshua James Miller, Justin Rohde, Sujatha Karoor, Stephane Dupont
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Abstract
Systems and methods for hemodialysis or peritoneal dialysis having integrated electrodeionization capabilities are provided. In an embodiment, the dialysis system includes a carbon source, a urease source and an electrodeionization unit. The carbon source and urease source can be in the form of removable cartridges.
Claims7
A method of performing peritoneal dialysis comprising:
- passing a spent dialysis fluid from an individual through a dialyzer, a carbon source, a urease source and an electrodeionization unit to produce a clean dialysis fluid, the dialyzer comprising an ion-rejection membrane selected from the group consisting of a first ion-rejection membrane that allows the passage of negatively charged ions and non-ionic species but restricts the passage of positively charged ions, and a second ion-rejection membrane that allows the passage of positively charged ions and non-ionic species but restricts the passage of negatively charged ions;
- and
- returning the clean dialysis fluid to the individual.
A method of performing dialysis comprising:
- passing a spent dialysis fluid through a dialysis compartment of a dialyzer comprising an ion-rejection membrane that allows the passage of negatively charged ions and non-ionic species but restricts the passage of positively charged ions, the ion-rejection membrane separating the dialysis compartment from a dialysate compartment of the dialyzer;
- passing used dialysis fluid generated from the dialysate compartment of the dialyzer through a carbon source, a urease source and an electrodeionization unit to produce a clean dialysis fluid;
- adding a source of negative ions to the clean dialysis fluid;
- and
- passing the clean dialysis fluid through the dialysate compartment of the dialyzer.
2 more elements
A method of performing dialysis comprising:
- passing a spent dialysis fluid through a dialysis compartment of a dialyzer comprising an ion-rejection membrane that allows the passage of positively charged ions and non-ionic species but restricts the passage of negatively charged ions, the ion-rejection membrane separating the dialysis compartment from a dialysate compartment of the dialyzer;
- passing used dialysis fluid generated from the dialysate compartment of the dialyzer through a carbon source, a urease source and an electrodeionization unit to produce a clean dialysis fluid;
- adding a source of positive ions to the clean dialysis fluid;
- and
- passing the clean dialysis fluid through the dialysate compartment of the dialyzer.
2 more elements
Dependencies are inferred from the claim text.