Patent ID: 8777892
Filing Date: 2014-07-15
Classification: A61M,B01D

Abstract:
1. A portable peritoneal dialysis system for a patient with renal dysfunction or failure comprising: an inlet port for providing inflow to the patient's peritoneal cavity; an outlet port for providing outflow from the patient's peritoneal cavity; a volume of dialysate for flow into and out of the patient's peritoneal cavity, thereby removing from the patient uremic waste metabolites that have diffused into the dialysate; a closed liquid flow loop, including a pump, for flowing the dialysate into and out of the patient's peritoneal cavity; an organic-and phosphate-removing stage, including at least one replaceable organic-and phosphate-removing cartridge in the closed liquid flow loop, the cartridge containing a mixture of activated carbon and zirconium oxide packed around semi-permeable hollow fibers for removing organic compounds and phosphate from dialysate removed from the patient's peritoneal cavity; and a urea-and ammonia-removing stage, including at least one replaceable urea-and ammonia-removing cartridge separate from the at least one replaceable organic-and phosphate-removing cartridge in the closed liquid flow loop, the at least one replaceable urea- and ammonia-removing cartridge containing material for removing urea and ammonia from dialysate removed from the patient's peritoneal cavity, the material being packed around semi-permeable hollow fibers with interior fiber walls that reject cations, thereby retaining cations in the dialysate.