Patent ID: 6837976

Claim:
A disposable biosensor comprising: a laminated strip having a first strip end, a second strip end and a vent opening spaced from said first strip end, said laminated strip comprising a base layer with at least three electrodes delineated thereon, a reagent holding layer carried on said base layer, said reagent holding layer having at least two cutouts, a channel forming layer carried on said reagent holding layer, and a cover having a notch at said first strip end; an enclosed channel between said first strip end and said vent opening, said enclosed channel containing said at least two cutouts; a first reagent disposed in a first cutout of said at least two cutouts forming a reference electrode; a second reagent disposed in a second cutout of said at least two cutouts forming a first working electrode, said second reagent containing an enzyme; and conductive contacts at said second strip end and insulated from said enclosed channel.