Patent ID: 9417201
Filing Date: 2016-08-16
CPC Classification: G01N,G01R

Claim Text:
1. A method of determining exposure of a glucose test strip to humidity, the method comprising: inserting said glucose test strip into a glucose meter, said glucose test strip comprising a glucose sensing electrode connected by a first conductive line to a first electrical contact pad and a reference electrode connected by a second conductive line to a second electrical contact pad, wherein a polymer layer responsive to humidity positioned on said glucose test strip contacts at least a portion of said first and said second conductive lines; applying a potential across said polymer layer; measuring an electrical property associated with said polymer layer; and calculating a humidity exposure value from said electrical property, wherein said polymer layer is selected from the group consisting of a crosslinked polyvinylpyrrolidone (PVP), a crosslinked polymer containing nitrogen heterocyclic groups, and combinations thereof.