Title :
A real time ex-vivo potassium analyzer for human cardiopulmonary bypass
Author :
Mathur, Vijaywanth P. ; Watkins-Pitchford, J.M.
Author_Institution :
Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
Potentially lethal changes in plasma potassium concentrations occur during cardiopulmonary bypass. A simple and reliable ion-selective potassium analyzer suitable for continuous ex-vivo monitoring is described. The system incorporates a novel reference electrode design and uses an inverse modelling approach for on-line temperature compensation to minimize problems related to stability, drift and temperature changes. Traces illustrating its performance in aqueous potassium standards and in dog blood are shown.
Keywords :
Biomedical monitoring; Cardiology; Electrodes; Humans; Monitoring; Plasmas; Standards;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris, France
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
DOI :
10.1109/IEMBS.1992.5761527
