Back to results
US 8,409,444 B2Granted
Acid zirconium phosphate and alkaline hydrous zirconium oxide materials for sorbent dialysis
AssigneeFresenius Medical Care Holdings, Inc.
InventorRaymond June-Hin Wong
Life of this patent
Estimating the term…
Abstract
A combination of acid zirconium phosphate and alkaline hydrous zirconium oxide are utilized as ion-exchange materials, for example, in sorbent dialysis. The combination provides for dialysate regeneration while maintaining constant and controlled levels of Na+, HCO3−, and pH.
Claims29
A sorbent cartridge comprising a layer of a mixture of acid zirconium phosphate (AZP) and alkaline hydrous zirconium oxide (NaHZO) in the sorbent cartridge, and wherein said acid zirconium phosphate is the only form of zirconium phosphate present in said layer.
Dependencies are inferred from the claim text.