Patent ID: 8815079
Filing Date: 2014-08-26
Classification: A61B,C12Q,G01N

Abstract:
1. A method for determining the concentration of an analyte in a fluid sample with a test sensor, the method comprising: providing a meter having a light source; providing an electrochemical test sensor including a base, a dielectric layer, a reagent, a light guide area, and a lid, the base having a flow path for the fluid test sample, the base having on its surface a counter electrode and a working electrode adapted to electrically communicate with a detector of electrical current, the dielectric layer forming a dielectric window therethrough, the reagent including an enzyme that is adapted to react with the analyte, the lid mating with the base and assisting in forming a capillary space with an opening for the introduction of the fluid test sample thereto, the light guide area having a transparent or translucent polymeric light guide at least partially surrounded by an opaque area, the polymeric light guide being adapted to transmit light therethrough towards the capillary space, the dielectric layer and the reagent layer being located between the base and the lid, the lid including the polymeric light guide and the opaque area; transmitting light through the polymeric light guide from the light source towards the fluid sample to assist a user in positioning the sample with respect to the test sensor; illuminating the fluid sample with the light transmitting through the polymeric light guide; contacting the reagent layer with the fluid sample via the capillary space; generating an electrical signal in the test sensor in response to the presence of the analyte; and determining a level of the analyte from the electrical signal.