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A catheter-based enzyme-coupled electrode for measurement of lactate
R I Waite1, L R Waite, S P Lim
1Department of Electrical and Computer Engineering, Rose-Hulman Institute of Technology, Terre Haute, IN 47803.
Biomedical Instrumentation & Technology
|November 1, 1991
Abstract:
An enzyme-coupled electrode was incorporated into a catheter to measure the concentration of lactate solutions. The sensor output was found to be linearly dependent on the lactate concentration. The average nonlinearity over a sample of nine catheters was 5.88% full scale. Hysteresis for the device was low, with an average of 4.54% full scale. Preliminary results indicate that in-vivo measurements may be possible, which are not possible with other lactate measurement methods.