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ELECTROLYTE AND pH MONITORING FOR FLUID REMOVAL PROCESSES

  • US 20120273420A1
  • Filed: 03/20/2012
  • Published: 11/01/2012
  • Est. Priority Date: 04/29/2011
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a blood fluid removal device comprising(i) an inlet for receiving blood from a patient,(ii) an outlet for returning blood from the patient,(iii) a medium for removing fluid and contaminants from the blood, the medium being positioned between the inlet and the first outlet, and(iv) a fluid source for carrying a fluid, the fluid selected from dialysate and replacement fluid, wherein if the fluid is dialysate the fluid source carries the fluid to the medium, and wherein if the fluid is replacement fluid the fluid source carries the fluid to the blood after the blood exits the medium;

    a concentrate source for housing a concentrate solution comprising concentrated electrolyte or pH buffer;

    a concentrate flow control element for controlling the rate that the concentrate solution enters the fluid source;

    a first sensor configured to monitor an indicator of blood electrolyte concentration or blood pH; and

    control electronics in operable communication with the sensor and the concentrate flow control element,wherein the control electronics are configured, via the concentrate flow control element, to adjust the rate at which the concentrate solution enters the fluid source based on data obtained from the sensor.

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