Recharger for recharging zirconium phosphate and zirconium oxide modules

Patent metadata

Field	Value
Publication number	US-10064986-B2
Application number	US-201615143458-A
Country	US
Kind code	B2
Filing date	Apr 29, 2016
Priority date	Nov 26, 2013
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

Systems and methods for recharging zirconium phosphate and zirconium oxide in reusable sorbent modules are provided. The systems and methods provide for recharging any combination of zirconium phosphate and/or zirconium oxide sorbent modules. The systems and methods also provide for linkage of multiple rechargers for sharing of infrastructure.

First claim

We claim:

1. A sorbent recharger, comprising:
at least a first receiving compartment for a first sorbent module; the first receiving compartment having a first sorbent module inlet and a first sorbent module outlet;
one or more fluid sources fluidly connected to the first sorbent module inlet through a first set of one or more fluid connectors; the one or more fluid sources containing fluid capable of recharging a sorbent material within the first sorbent module;
one or more pumps positioned on the one or more fluid connectors for pumping fluid from the one or more fluid sources to the first sorbent module inlet; and
a first effluent line fluidly connected to the first sorbent module outlet;
the sorbent recharger configured to recharge the sorbent material within the first sorbent module.

2. The sorbent recharger of claim 1 , further comprising:
at least a second receiving compartment for a second sorbent module; the second receiving compartment having a second sorbent module inlet and a second sorbent module outlet;
one or more fluid sources fluidly connected to the second module inlet through a second set of one or more fluid connectors; and
one or more pumps positioned on the one or more fluid connectors for pumping fluid from the one or more fluid sources to the second sorbent module inlet; and
a second effluent line fluidly connected to the second sorbent module outlet.

3. The sorbent recharger of claim 1 , wherein the first sorbent module is a zirconium phosphate module.

4. The sorbent recharger of claim 3 , wherein the one or more fluid sources is any one of a water source, a disinfectant source, and a brine source.

5. The sorbent recharger of claim 4 , wherein the one or more fluid sources comprise a brine source, and wherein the brine source contains any one of a solution of sodium chloride, sodium acetate, acetic acid, and combinations thereof.

6. The sorbent recharger of claim 5 , wherein the concentration of sodium chloride is between 2.5 M and 4.9 M, the concentration of sodium acetate is between 0.3 M and 1.1 M, and the concentration of acetic acid is between 0.2 M and 0.8 M.

7. The sorbent recharger of claim 2 , wherein the second sorbent module is a zirconium oxide module.

8. The sorbent recharger of claim 7 , wherein the one or more fluid sources is any one of a water source, a disinfectant source, a base source, and combinations thereof.

9. The sorbent recharger of claim 8 , wherein the one or more fluid sources comprise a base source, and wherein the base source contains sodium hydroxide in a concentration of between 0.5 M and 2.0 M.

10. The sorbent recharger of claim 2 , wherein the first effluent line and the second effluent line are fluidly connected to a drain line.

11. The sorbent recharger of claim 10 , wherein the drain line is fluidly connected to any one of a drain, a common reservoir, or combinations thereof.

12. The sorbent recharger of claim 2 , wherein the first sorbent module is a zirconium phosphate module; and the second sorbent module is a zirconium oxide module.

13. The sorbent recharger of claim 2 , wherein the first sorbent module is a zirconium oxide module; and the second sorbent module is a zirconium phosphate module.

14. The sorbent recharger of claim 2 , wherein the first and second sorbent modules are each zirconium phosphate modules or each zirconium oxide modules.

15. The sorbent recharger of claim 2 , further comprising at least one module bypass line; wherein the module bypass line is positioned upstream of the first sorbent module inlet and is fluidly connected to the first effluent line.

16. The sorbent recharger of claim 15 , further comprising at least a second module bypass line; wherein the second module bypass line is positioned upstream of the second sorbent module inlet and is fluidly connected to the second effluent line.

17. The sorbent recharger of claim 11 , wherein the drain line has a static mixer.

18. The sorbent recharger of claim 2 wherein either or both of:
the first module inlet is fluidly connectable to the first module outlet; and
the second module inlet is fluidly connectable to the second module outlet.

19. The sorbent recharger of claim 10 , wherein the fluid sources are selected from the group consisting of a water source, a base source, a disinfectant source, a brine source, and combinations thereof.

20. The sorbent recharger of claim 1 , wherein the at least one fluid source is fluidly connected to a second set of one or more connectors in a second recharger.

21. The sorbent recharger of claim 1 , wherein either or both of the sorbent module inlet and sorbent module outlet are positioned on a flexible connector.

22. A dialysis system, comprising:
one or more of the sorbent recharger of claim 1 , wherein the one or more sorbent rechargers are fluidly connected to a common set of the one or more fluid sources.

Assignees

• Medtronic Inc

Inventors

• Gerber Martin T
• Hobot Christopher M
• Lura David B
• Menon Kanjimpuredathil Muralikrishna
• Patil Kaustubh R
• Parameswaran Mahesh
• Narula Rohit Kumar
• Jeyachandran Ramkumar

Classifications

• B01J49/57

  for anionic exchangers · CPC title

• B01J20/3475

  in the liquid phase · CPC title

• B01J39/12

  Compounds containing phosphorus · CPC title

• A61M2205/3324

  PH measuring means · CPC title

• A61M2205/3331

  Pressure; Flow · CPC title