BIOSENSOR SYSTEM, SENSOR CHIP, AND METHOD OF MEASURING ANALYTE CONCENTRATION IN BLOOD SAMPLE
First Claim
1. A biosensor system, comprising:
- a measuring instrument having an operation part, anda sensor chip that is insertable into and removable from the measuring instrument and into which a blood sample is introduced,wherein the sensor chip includes a measurement part A that acquires Data a related to the concentration of an analyte in the blood sample based on the amount of electric current that flows in the blood sample due to a reaction in which an oxidoreductase with the analyte used as a substrate is involved, and a measurement part B that acquires, from the blood sample, Data b for temperature correction of the Data a, andthe operation part has a function of determining the concentration of the analyte in the blood sample, with the concentration having been corrected according to the temperature of the blood sample based on the Data a and the Data b.
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Abstract
The present invention provides a biosensor system that can prevent a measurement error caused by the temperature of the environment in use from occurring. A biosensor system 100 includes a measuring instrument 101 having an operation part 306, and a sensor chip 200 that is insertable into and removable from the measuring instrument 101 and into which a blood sample is introduced. The sensor chip 200 includes a measurement part 41 (a measurement part A) that acquires Data a related to the concentration of an analyte in a blood sample based on the amount of electric current that flows in the blood sample due to a reaction in which an oxidoreductase with the analyte used as a substrate is involved, and a measurement part 42 (a measurement part B) that acquires, from the blood sample, Data b for temperature correction of Data a. The operation part 306 has a function of determining the concentration of the analyte in the blood sample, with the concentration having been corrected according to the temperature of the blood sample based on Data a and Data b.
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Citations
19 Claims
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1. A biosensor system, comprising:
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a measuring instrument having an operation part, and a sensor chip that is insertable into and removable from the measuring instrument and into which a blood sample is introduced, wherein the sensor chip includes a measurement part A that acquires Data a related to the concentration of an analyte in the blood sample based on the amount of electric current that flows in the blood sample due to a reaction in which an oxidoreductase with the analyte used as a substrate is involved, and a measurement part B that acquires, from the blood sample, Data b for temperature correction of the Data a, and the operation part has a function of determining the concentration of the analyte in the blood sample, with the concentration having been corrected according to the temperature of the blood sample based on the Data a and the Data b. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of measuring the concentration of an analyte in a blood sample, comprising:
- a step of acquiring Data a related to the concentration of the analyte based on the amount of electric current that flows in the blood sample due to a reaction in which an oxidoreductase with the analyte used as a substrate is involved, a step of acquiring, from the blood sample, Data b for temperature correction of the Data a, and a step of determining the concentration of the analyte in the blood sample, with the concentration having been corrected according to the temperature of the blood sample based on the Data a and the Data b,
wherein the step of acquiring the Data b includes a step of applying voltage to a pair of electrodes that have been brought into contact with the blood sample and measuring the amount of electric current that flows in the blood sample according to oxidation or reduction of a redox substance other than the analyte. - View Dependent Claims (16, 17, 18, 19)
- a step of acquiring Data a related to the concentration of the analyte based on the amount of electric current that flows in the blood sample due to a reaction in which an oxidoreductase with the analyte used as a substrate is involved, a step of acquiring, from the blood sample, Data b for temperature correction of the Data a, and a step of determining the concentration of the analyte in the blood sample, with the concentration having been corrected according to the temperature of the blood sample based on the Data a and the Data b,
Specification