Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1997-07-15
1998-02-10
Kim, John
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
210645, 210646, 210647, 210739, B01D 6132, B01D 6510
Patent
active
057165319
ABSTRACT:
A method is described for determining the sodium clearance of a dialyzer. Dialysate containing sodium ions is circulated through the dialysate side of the dialyzer. Water is continuously circulated through the blood side of the dialyzer, the water being single passed through the blood side of the dialyzer. Measurements of the conductivity of the dialysate are made prior to the dialysate entering the dialyzer, and measurements of the conductivity of the dialysate are made after the dialysate has passed through the dialyzer. The clearance of the sodium ions by the dialyzer is calculated from the measurements of conductivity. The measurements of conductivity of the dialysate after passing through the dialyzer becomes substantially constant as the dialysate and water are circulated through the dialyzer. The sodium clearance corresponds to urea clearance of the dialyzer, since the two molecules are approximately the same size.
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Bell Eric
Feldsein Thomas M.
Kenley Rodney S.
Matthews Dawn
Peter, Jr. Frederick H.
AKSYS, Ltd.
Kim John
LandOfFree
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