Patent ID: 9713666
Date: 2017-07-25
CPC Classifications: A61M,B01D

Claim:
1. A blood based solute monitoring system for measuring at least one blood solute species, comprising: a first recirculation flow path in fluid communication with a dialyzer; one or more valves configurable in a closed status to recirculate fluid through the first recirculation flow path and in an open status to recirculate fluid in a second flow path; wherein the dialyzer comprises at least one semi-permeable membrane; wherein the first recirculation flow path in the closed status recirculates the fluid through the dialyzer to equilibrate a concentration of at least one solute species in the fluid to a solute species concentration of the blood in a blood compartment of the dialyzer; the first recirculation flow path having a pump and at least one sensor positioned in the first recirculation flow path measuring the concentration of the at least one solute species in the fluid wherein the sensor is located upstream of the dialyzer and downstream of a dialysate regeneration unit, the sensor measuring a change of the concentration of the fluid after passing the regeneration unit; and the one or more valves in a non-closed status passing the fluid through the dialyzer wherein the at least one solute species in the fluid does not become equilibrated with the concentration of the solute species with the solute species in the blood in the blood compartment of the dialyzer.