Quantitative analysis method and its system using a disposable sensor
First Claim
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1. A quantitative analysis system for measuring a specific component in biological body fluid by an amperometric method, comprising:
- a disposable sensor mounting portion, including a disposable sensor for receiving a sample of the biological body fluid for analysis; and
means for automatically determining whether a chip mounted on said disposable sensor mounting portion is a sensor for measuring the sample, or an adjustment chip, depending on a measured current value flowing through said system when said chip is mounted on said disposable sensor mounting portion.
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Abstract
A sensor 13 is inserted into a connector 14. A constant voltage required to obtain a response current is applied across the connector 14 by a voltage applying source 15 at timings required. A response current of the sensor 13 inserted into the connector 14 is converted into a voltage by a current-to-voltage converter 16, and the amount thereof is determined by a microcomputer, the analysis results being displayed onto a display unit.
1076 Citations
22 Claims
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1. A quantitative analysis system for measuring a specific component in biological body fluid by an amperometric method, comprising:
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a disposable sensor mounting portion, including a disposable sensor for receiving a sample of the biological body fluid for analysis; and means for automatically determining whether a chip mounted on said disposable sensor mounting portion is a sensor for measuring the sample, or an adjustment chip, depending on a measured current value flowing through said system when said chip is mounted on said disposable sensor mounting portion.
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2. A quantitative analysis system for measuring a specific component in biological body fluid by an amperometric method, comprising:
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a disposable sensor for receiving a sample of the biological body fluid for analysis; and means for automatically distinguishing whether the disposable sensor is used depending on a stability of a measured current value of said disposable sensor. - View Dependent Claims (3)
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4. A quantitative analysis system comprising:
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means for applying a reaction voltage to a sensor; means for detecting that a sample liquid is supplied to said sensor; means for interrupting the reaction voltage based on said detection; means for reapplying said reaction voltage to said sensor after a specified time period; means for detecting a reaction state of said sensor due to reapplication of said reaction voltage; and means for displaying the reaction state. - View Dependent Claims (5, 6)
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7. A quantitative analysis system comprising:
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disposable sensor means, including a capillary shaped portion and an enzyme portion, for receiving a sample liquid for analysis; control means, including a connector for said disposable sensor means, for allowing enzymes in said enzyme portion and the sample liquid to react in an absence of a reaction voltage, for automatically applying the reaction voltage to the reaction after a specified time period, and for measuring an oxidation current indicative of a concentration of a constituent part of the sample liquid; and calibrating and testing means for calibrating and testing said system without key operation. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification