FIELD: medicine.
SUBSTANCE: method of detecting repeated use of indicator strip in biosensor by means of a biosensor, comprising a processor and memory which stores instructions for executing by processor. Indicator strip comprises a dry reagent and electrodes including a bare electrode which is not in contact with dry reagent in unused state of indicator strip. Method includes inoculating indicator strip with a liquid so that liquid gets in contact with dry reagent, bare electrode and one or more other electrodes. While electrodes are in contact with liquid, electric potential is applied between bare electrode and one or more other electrodes. Method includes measuring electric current flowing between bare electrode and one or more other electrodes in response to application of potential. Determining, based on one or more parameters of measured electric current, if indicator strip is a strip which has already been wetted and dried up before inoculation.
EFFECT: providing detection of used indicator strip, which has dried after use.
15 cl, 6 dwg
