Analyte detection devices and methods with hematocrit/volume correction and feedback control
AssigneeIntuity Medical, Inc.
InventorsJeffrey L. Emery, Carole R. Stivers
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Abstract
Disclosed are devices, arrangements and methods for quantifying the concentration of an analyte present in bodily fluid, including: an assay pad having at least one chemical reagent capable of producing a detectable signal in the form of a reaction spot upon reaction with the analyte; a light source; a detector array; a processor; and a memory in communication with the processor, the memory comprising: (a) at least one value indicative of one or more of: (i) the level of hematocrit contained in the sample; (ii) the volume of the sample applied to the assay pad; or (iii) imperfections present in the reaction spot; and (b) at least one algorithm for calculating the concentration of the analyte contained in the sample.
Claims18
An arrangement for measuring the concentration of an analyte contained in a sample of body fluid, the arrangement comprising:
- an assay pad comprising at least one chemical reagent capable of producing a detectable signal in the form of a color change at a reaction spot formed upon reaction with the analyte;
- a light source;
- a detector array;
- a processor;
- and
- a memory in communication with the processor, the memory comprising:
- (a) at least one value derived from the color change at the reaction spot indicative of one or more of:
- (i) the volume of the sample applied to the assay pad;
- and
- (ii) imperfections present in the reaction spot;
- and
- (b) at least one algorithm for calculating the concentration of the analyte contained in the sample using the at least one value.
Dependencies are inferred from the claim text.