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US 6,565,738 B1Granted
Diagnostic test for the measurement of analyte in abiological fluid
AssigneeAbbott Laboratories
InventorsTimothy P. Henning, Kristen L. Cousineau
Life of this patent
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AssigneeAbbott Laboratories
InventorsTimothy P. Henning, Kristen L. Cousineau
Estimating the term…
A biosensor for determining the concentration of an analyte, such as, for example, ALT, in a sample of biological fluid, such as, for example, whole blood, comprising: (a) a base layer; (b) a detecting layer comprising a reference electrode and a working electrode, the surface of the electrically conductive portion of the working electrode being sufficiently smooth so that determination of the concentration of an analyte present in a low concentration, e.g., less than 1 mM, can be made; (c) a layer overlying said electrodes, said layer comprising dried reagents; and (d) an anticoagulant disposed in such a location that it will prevent the sample from coagulating during the determination. The biosensor preferably further includes a fluid-transporting layer to aid in delivering the sample from a sample application zone to the electrodes. The biosensor preferably further includes a covering layer overlying the electrode area to reduce evaporation of the sample during the assay and to help define the fluid transport path and the volume of fluid over the detecting layer.
A biosensor for determining the concentration of an analyte in a sample of whole blood, said biosensor consisting essentially of:
A method for determining the concentration of an analyte in a sample of whole blood, said method comprising the steps of:
Dependencies are inferred from the claim text.