SYSTEM AND METHOD FOR MEASURING ANALYTE CONCENTRATION WITH INTERFERANT CORRECTION
First Claim
1. A biosensor strip for measurement an analyte concentration, comprising:
- a base;
an electrode layer covered on the base and comprising a first electrode set and a second electrode set, wherein the first electrode set is used for measurement analyte concentration and the second electrode set is used for measurement hematocrit level;
a space covered on the electrode layer and exposed an end of the electrode layer and comprising an opening, wherein the opening exposed another end of the electrode layer, and further comprises a separated element formed corresponding to and in the middle of the first electrode set and the second electrode set for separating the opening to a first reaction zone and a second reaction zone, and the first reaction zone is corresponding to the first electrode set and the second reaction zone is corresponding to the second electrode set;
a reaction reagent covered on the first electrode set and corresponding to the first reaction zone that used for reaction with the analyte, wherein the reaction reagent is not covered on the second electrode set and corresponding to the second reaction zone; and
a cover covered on the space.
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Abstract
The present invention is related to an electrochemical biosensing test strip, biosensing meter, system and method for analyte measurement incorporating a hematocrit correction. The biosensor strip comprises a first and a second electrode sets respectively for detecting analyte concentration and hematocrit level. The first and second electrode sets are respectively corresponding to different reaction zones and a reaction reagent is only formed on the first electrode set corresponding reaction zone. Applying a first signal comprising a DC component and a second signal comprising an AC component that has a constant frequency respectively to the first and second electrode sets can respectively detect an uncorrected analyte concentration and hematocrit level. Therefore, the corrected analyte concentration is more accurate by incorporating the hematocrit correction.
38 Citations
39 Claims
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1. A biosensor strip for measurement an analyte concentration, comprising:
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a base; an electrode layer covered on the base and comprising a first electrode set and a second electrode set, wherein the first electrode set is used for measurement analyte concentration and the second electrode set is used for measurement hematocrit level; a space covered on the electrode layer and exposed an end of the electrode layer and comprising an opening, wherein the opening exposed another end of the electrode layer, and further comprises a separated element formed corresponding to and in the middle of the first electrode set and the second electrode set for separating the opening to a first reaction zone and a second reaction zone, and the first reaction zone is corresponding to the first electrode set and the second reaction zone is corresponding to the second electrode set; a reaction reagent covered on the first electrode set and corresponding to the first reaction zone that used for reaction with the analyte, wherein the reaction reagent is not covered on the second electrode set and corresponding to the second reaction zone; and a cover covered on the space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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14. A biosensing meter with hematocrit correction for inserting a biosensor strip to measure an analyte concentration, comprising:
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a connector used for receiving the biosensor strip, wherein the biosensor strip comprises different electrode sets; a signal applied element used for applying a first signal comprising a DC signal and a second signal comprising an AC signal with a constant frequency to the different electrode sets respectively simultaneously; a detecting element for detecting the first signal and the second signal to obtain a first response and a second response; and a microprocessor for receiving the first response and the second response to calculate an uncorrected analyte concentration and hematocrit level respectively and then calculating to obtain a corrected analyte concentration. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An analyte concentration measurement system with hematocrit correction, comprising:
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a biosensor strip comprising a electrode layer that comprises a first electrode set and a second electrode set, the first electrode is used for measuring analyte concentration and is covered with a reaction reagent specifically reacted with the analyte and the second electrode set is used for measuring hematocrit level; a biosensing meter used for selected received the biosensor strip and comprising; a signal applied element used for applying a first signal comprising a DC signal to the first electrode set and a second signal comprising an AC signal to the second electrode set respectively simultaneously; a detecting element for detecting the first signal and the second signal to obtain a first response and a second response; and a microprocessor for receiving the first response and the second response to calculate results respectively and then calculating to obtain the analyte concentration. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification