Patent ID: 9335291
Filing Date: 2016-05-10
CPC Classification: G01N

Claim Text:
1. A method of determining the volume sufficiency of a fluid sample applied to a test strip electrically connected to a meter for measuring a glucose concentration, the method comprising: applying a first voltage between a first working electrode coated with a first reagent layer disposed on a mediator layer, a shared reference electrode coated with the mediator layer and a second working electrode coated with a second reagent layer disposed on the mediator layer; measuring a current during the first time period at the first working electrode; applying a voltage other than first voltage for a second time period after the first time period between the reference electrode and the second working electrode; measuring a current during the second time period at the second working electrode with the meter; predicting an estimated second current during the second time period at the second working electrode; evaluating a difference between the measured second current during the second time period and the estimated second current during the second time period at the second working electrode; and displaying an error condition indicating volume insufficiency if the difference between the measured second current during the second time period and the estimated second current during the second time period is greater than an acceptance limit.