Abstract: An optic light guide test sensor comprises a light guide, a reagent-coated membrane, and a mesh layer. The reagent-coated membrane and the mesh layer are attached to the light guide at an output end of the light guide. The light guide test sensor is adapted to be used to test the level of an analyte in a biological fluid sample when used with a readhead. A method of manufacturing the light guide test sensor involves providing a plurality of light guides, providing a strip of reagent-coated membrane, and providing a strip of mesh layer. The reagent-coated membrane and mesh layer are attached to the light guides by ultrasonic welding. The reagent-coated membrane and mesh layer may also be attached to the light guides by adhesive.

Abstract: A sensor for optically measuring an analyte contained in a liquid biological sample, particularly measuring the glucose content of blood in a glucose meter. The sensor in a preferred embodiment takes the form of a snow-boot. That is, it has a top portion including an air vent and an area that the user grasps to insert and remove the sensor from the slot in a glucose meter. The bottom or toe region of the sensor extends from the glucose meter and provides the entrance to a capillary channel for introducing a sample of blood into the meter, where it contacts reagents providing an optical response. The optics within the meter read the optical response of the reagents and correlates it with the glucose content of the sample.

Abstract: According to one embodiment of the present invention, an electrochemical sensor (10) for detecting the concentration of analyte in a fluid test sample is disclosed. The sensor (10) includes a counter electrode having a high-resistance portion for use in detecting whether a predetermined amount of sample has been received by the test sensor.