Patent ID: 7563350
Filing Date: 2009-07-21
Classification: C12Q,G01N,Y10T

Abstract:
1. A sensor strip for determining the concentration of an analyte in a sample, the sensor strip comprising: (a) a first substrate having a proximal end and an opposite distal end and a length therebetween, the distal end being configured and arranged for insertion into a sensor reader, the first substrate defining a first side edge and a second side edge of the sensor extending from the proximal end to the distal end of the first substrate, the first side edge and the second side edge defining a width of the first substrate and of the sensor; (b) a second substrate positioned over the first substrate; (c) at least one working electrode comprising gold on the first substrate; (d) at least one counter electrode comprising gold on the first substrate, with a portion of the counter electrode located 25-1000 micrometers from a portion of the at least one working electrode; (e) a spacer between the first and second substrates, the spacer layer having a length less than the length of the first substrate and a width the same as the width of the first substrate, the spacer layer defining: (f) the second aperture forming a rectangular vent hole through the second substrate.