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Recirculating dialysate fluid circuit for blood measurement

  • US 10,881,777 B2
  • Filed: 10/09/2018
  • Issued: 01/05/2021
  • Est. Priority Date: 01/09/2013
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • at least a first recirculation flow path;

    the first recirculation flow path in fluid communication with a dialyzer;

    the first recirculation flow path comprising at least one pump and at least one sensor measuring at least one fluid characteristic;

    wherein a concentration of at least one solute in a fluid recirculating in the first recirculation flow path becomes equilibrated with a concentration of the at least one solute in a blood of a patient; and

    a processor in communication with the at least one sensor;

    the processor programmed to obtain the at least one fluid characteristic from the at least one sensor after the concentration of the at least one solute in the first recirculation flow path becomes equilibrated with the concentration of the at least one solute in the blood of the patient;

    wherein the sensor is located upstream of the dialyzer and downstream of a dialysate regeneration unit wherein the dialysate regeneration unit is fluidly connectable to the first recirculation flow path.

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