FILL SUFFICIENCY METHOD AND SYSTEM

摘要

Described and illustrated herein are one exemplary method and a measurement system having a meter and a test strip. The test strip has a first working electrode, reference electrode and second working electrode. In this method, acceptable fill data from known first current and known second current are used to predict an estimated second current at proximate the second time period (for a given batch of test strips) during the test sequence. The estimated second current at proximate the second time interval is then compared with a measured actual second current at proximate the second time interval during an actual test to determine if the measured actual second current is substantially equal to or within an acceptable percent deviation from the estimated second current so as to determine sufficient volume of a physiological fluid sample in the test strip.

主权项

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 a mediator layer and a second working electrode coated with a second reagent layer disposed on a 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.