Baxter International Inc.

Charles J Dubauskas

Prakash R Keshaviah

Jian Ruan

Jim Ebben

Thomas J Hartranft

Dave Luhring

An improved conductivity based servo-proportioning system for hemodialysis machines. The servo-proportioning system calculates the actual conductivity contributions of the individual chemical components of the concentrate being utilized, to determine the conductivity set points. If an Acidified and Bicarb operation is being performed, then the servo-proportioning system calculates a conductivity set point at both an intermediate and final stage of the servo-proportioning system. If only acetate is being performed, then only the acetate individual chemical components are calculated. If the Na and/or Bicarb concentrations are to be varied, then the conductivity is calculated for the changed Na and/or Bicarb concentrations.

Hemodialysis conductivity servo-proportioning system and method

An automatic means and method for preventing and/or treating hypotension in hemodialysis patients. To this end, a system is provided wherein the patient or healthcare practitioner can cause the hemodialysis machine to automatically deliver sodium to the patient through the dialysate so as to increase blood and extracellular osmolarity, increase blood volume from vascular refilling, and raise blood pressure. This would thereby alleviate any clinical symptoms caused by hypotension during hemodialysis.

Growing community of inventors

St. Petersburg, FL, United States of America

Charles J Dubauskas