Voltammetric systems for assaying biological analytes
AssigneeAscensia Diabetes Care Holdings AG
InventorHuan-Ping Wu
Life of this patent
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Abstract
The present invention relates to systems, methods, and devices for determining the concentration of an analyte in a sample. The use of linear, cyclic, or acyclic voltammetric scans and/or semi-integral, derivative, or semi-derivative data treatment may provide for increased accuracy when determining the concentration of an analyte in a sample. Hematocrit compensation in combination with the data treatments may reduce the hematocrit effect with regard to a glucose analysis in whole blood. In another aspect, fast scan rates may reduce the hematocrit effect.
Claims18
1-22. (canceled)
handheld analyte measuring device, for determining the concentration of an analyte in a sample, comprising an acyclic scanning measuring device adapted to receive a sensor strip, where
- the acyclic scanning measuring device comprises at least two device contacts in electrical communication with a display through electrical circuitry, and
- the sensor strip comprises at least first and second sensor strip contacts, the first sensor strip contact in electrical communication with a working electrode and the second sensor strip contact in electrical communication with a counter electrode through conductors, where
- a first reagent layer is on at least one of the electrodes, the first reagent layer comprises an oxidoreductase and at least one species of a redox pair.
A handheld analyte measuring device, for determining the concentration of an analyte in a sample, comprising a voltammetric scanning measuring device adapted to receive a sensor strip, where
- the voltammetric scanning measuring device comprises at least two device contacts in electrical communication with a display through electrical circuitry;
- and
- the sensor strip comprises at least first and second sensor strip contacts, the first sensor strip contact in electrical communication with a working electrode and the second sensor strip contact in electrical communication with a counter electrode through conductors, where
- a first reagent layer is on at least one of the electrodes, the first reagent layer comprising an oxidoreductase and at least one species of a redox pair.
Dependencies are inferred from the claim text.