Monitoring of blood pO/sub 2/ with a thin film amperometric sensor
- 9 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
A sample-taking sensor system for online pO/sub 2/ monitoring of blood is described. The system consists of a two-lumen catheter with a thin-film amperometric sensor cell, a pump unit with instrumentation, and a personal computer. The planar three-electrode system is only covered by a hydrophilic pHEMA membrane to avoid alterations in the composition of any internal electrolyte solution. To overcome the problem of electrode poisoning, the surface of the working electrode is regenerated during the calibration mode of the calibration/measurement cycle. Animal studies have been performed with anaesthetized pigs. The comparison of the sensor values with blood gas analyzer data shows a curved but reproducible correlation.Keywords
This publication has 8 references indexed in Scilit:
- Online blood electrolyte monitoring with a ChemFET microcell systemSensors and Actuators B: Chemical, 1990
- Preliminary evaluation of an infra-arterial blood gas system in dogs and humansCritical Care Medicine, 1989
- Sensors for monitoring blood gases in intensive careJournal of Physics E: Scientific Instruments, 1987
- Online pH,pCO2 andpO2 monitoring system using two-way cyclic pumping of lactate Ringer as a baseline solutionMedical & Biological Engineering & Computing, 1987
- Optical Fluorescence and Its Application to an Intravascular Blood Gas Monitoring SystemIEEE Transactions on Biomedical Engineering, 1986
- Online patient-monitoring system for the simultaneous analysis of blood K+, Ca2+, Na+ and pH using a quadruple-function ChemFET integrated-circuit sensorMedical & Biological Engineering & Computing, 1985
- Sauerstoffsensoren für in vivo-MessungenBiomedizinische Technik/Biomedical Engineering, 1973