Recirculating dialysate fluid circuit for blood measurement
First Claim
Patent Images
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.
2 Assignments
0 Petitions
Accused Products
Abstract
A blood based solute monitoring system for measuring at least one blood solute species that has a first recirculation flow path in fluid communication with a dialyzer. The first recirculation flow path is configured to allow a fluid to recirculate through a dialyzer such that the concentration of at least one solute species in the fluid becomes equilibrated to the solute species concentration of the blood in a blood compartment of the dialyzer. The blood solute monitoring system has at least one sensor to measure a fluid characteristic.
308 Citations
20 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification