Patent ID: 9254356
Filing Date: 2016-02-09
CPC Classification: A61K,A61M,A61P,Y10T

Claim Text:
1. A dialysis system for preparing a citrate dialysate from a base concentrate and an acid concentrate, said system comprising: a conductivity sensor for measuring conductivity of a solution; a dialyzer having a dialysate side and a blood side; a dialysate preparation tank for holding a base concentrate, an acid concentrate, and a pre-determined amount of water to produce a batch quantity of citrate dialysate from the base concentrate and the acid concentrate; a pump to circulate the citrate dialysate from the dialysate preparation tank to the dialysate side of the dialyzer; and a controller which controls the pump to circulate the dialysate to the dialysate side of the dialyzer based on measurement of the conductivity of the dialysate by the conductivity sensor, wherein said base concentrate comprises a citrate, bicarbonate and a salt, wherein a sodium contribution of the base concentrate to the dialysate ranges from 100 to 150 mEq/L; wherein said acid concentrate comprises an acid selected from the group consisting of acetic acid, citric acid and lactic acid, wherein (i) a sodium contribution of the acid concentrate to the dialysate ranges from 10 to 20 mEq/L, (ii) the combination of the sodium contributions of the base concentrate and the acid concentrate to the dialysate ranges from 125 to 150 mEq/L; and wherein the system circulates said dialysate to said dialysate side of said dialyzer if conductivity of said dialysate ranges from between about 12.5 and about 15.7 mS/cm and does not circulate the dialysate if said conductivity falls outside of said conductivity range.