Patent ID: 8557103

Claim:
A biosensor for measuring a concentration of glucose in a sample, the biosensor comprising: a first substrate and a second substrate disposed over the first substrate, wherein the first and second substrates define a biosensor comprising a proximal end having a width and a distal end having a width, the distal end being configured for insertion into a biosensor reader, wherein the width of the distal end is greater than the width of the proximal end; a spacer layer disposed between the first and second substrates and defining an aperture along a first side edge of the biosensor configured to receive a sample fluid; a working electrode disposed on the first substrate; a mediator and a glucose dehydrogenase disposed on the working electrode; and a counter/reference electrode disposed on the second substrate, wherein the second substrate comprises a cut-out portion at the distal end to expose a portion of the working electrode disposed on the first substrate.