Patent ID: 6356776
Filing Date: 2002-03-12
Classification: A61B,A61N,C12Q

Abstract:
A device for measuring the concentration of an analyte present in a biological system, said device comprisingone or more microprocessors programmed to control: (i) a device for extracting a sample from the biological system, said sample comprising the analyte; (ii) a device for sensing an extracted analyte to obtain a measurement signal that is related to analyte amount or concentration in the biological system, said device comprising a sensor; and (iii) a process for selectively favoring analyte-specific signal components over signal components due to interfering species, said process selected from the group consisting of (a) a differential signal process that subtracts non-analyte signal components from a measurement signal, (b) a delay that is performed between extracting the sample and sensing extracted analyte, (c) a selective electrochemical detection process that is performed during sensing, (d) a purge that is performed after sensing, (e) a charge segregation, and (f) any combination of (a) through (e).