Patent ID: 7964390
Filing Date: 2011-06-21
Classification: C12Q,Y10S,Y10T

Abstract:
1. A multivariable sensor system for simultaneously detecting one or more analytes in a fluid of a person, said sensor system comprising: an elongated sensor body including an array of spaced apart cavities; a plurality of optode sensing microbeads disposed in at least one cavity, said plurality of optode sensing microbeads comprising a first set of microbeads that include an indicator material and a detection substance; a reference element disposed in at least one other cavity for providing a standard color by which a color change of said plurality of optode sensing microbeads is compared; and a multilayered analyte-permeable membrane covering each of said cavities; wherein said detection substance comprises an enzyme that reacts with the analyte or catalyzes the reaction of the analyte to produce a detectable reaction product; wherein said at least one indicator material comprises a light-absorbing, pH-sensitive dye that undergoes a color change in response to the analyte or to the detectable reaction product thereof; wherein the color change is reversible depending upon the concentration of the one or more analytes.