Apparatuses and methods for analyte concentration determination
First Claim
1. An apparatus configured for receiving a test strip and for determining the concentration of at least one analyte in a physiological sample applied to the test strip, said apparatus comprising:
- (a) at least one light source for irradiating a plurality of different areas of said test strip that has been operatively associated with said apparatus;
(b) a detector array for detecting reflected light from each of said plurality of different areas, respectively;
(c) means for determining whether each area of said plurality of different areas has a sufficient amount or sample based on said detected reflected light from each respective area; and
(d) means for determining the concentration of at least one analyte based on said reflected light detected from those areas determined to have a sufficient amount of sample, wherein areas determined not to have a sufficient amount of sample are not used in said analyte concentration determination.
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Accused Products
Abstract
Apparatuses and methods for determining the concentration of an analyte in a physiological sample are provided. The subject apparatuses include at least one light source, a detector array, means for determining whether a sufficient amount of sample is present on each of the plurality of different areas, and means for determining the concentration of the analyte based on the reflected light detected from those areas determined to have sufficient sample, where areas having insufficient sample are not used in analyte concentration determination. The subject methods include illuminating each area of a test strip, obtaining reflectance from each of the different areas, determining which areas have sufficient sample based on detected light therefrom and deriving analyte concentration from the areas determined to have sufficient sample, where areas determined not to have sufficient sample are not used in the derivation. Also provided are kits for use in practicing the subject methods.
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Citations
22 Claims
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1. An apparatus configured for receiving a test strip and for determining the concentration of at least one analyte in a physiological sample applied to the test strip, said apparatus comprising:
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(a) at least one light source for irradiating a plurality of different areas of said test strip that has been operatively associated with said apparatus;
(b) a detector array for detecting reflected light from each of said plurality of different areas, respectively;
(c) means for determining whether each area of said plurality of different areas has a sufficient amount or sample based on said detected reflected light from each respective area; and
(d) means for determining the concentration of at least one analyte based on said reflected light detected from those areas determined to have a sufficient amount of sample, wherein areas determined not to have a sufficient amount of sample are not used in said analyte concentration determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for determining the concentration of at least one analyte in a physiological sample applied to a test strip, said method comprising:
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(a) illuminating a plurality of different areas of said test strip having physiological sample applied thereto;
(b) obtaining a respective reflectance value from each area of said plurality of different areas;
(c) determining whether each area of said plurality of different areas has a sufficient amount of sample based on said obtained respective reflectance value;
(d) deriving the concentration of said at least one analyte in said physiological sample from each of said plurality of different areas determined to have a sufficient amount of sample, wherein areas determined not to have a sufficient amount of sample are not used in said derivation. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification