Sensor system
First Claim
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1. A sensor system for measuring the concentration of an analyte in a biological sample, said sensor system comprising:
- a sensor instrument, said sensor instrument comprising a housing having a gap formed therein, said sensor instrument further comprising electrical contacts at a first side of said gap and a temperature sensor at a second side of said gap opposite said first side; and
a sensor strip, said sensor strip comprising an electrically-insulating electrode substrate, an electrode set on a first side of said electrode substrate, and a heat conducting layer on a second side of said electrode substrate opposite said first side, said heat conducting layer comprising at least 20% by volume of said sensor strip and having a thermal conductivity of at least 10 W/m-K, said sensor strip receivable in said gap such that said electrode set electrically communicates with said electrical contacts, and said heat conducting layer communicates with said temperature sensor.
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Abstract
A sensor strip comprises an electrode substrate, an electrode set, on the electrode substrate, and a heat conducting layer, on the electrode substrate opposite the electrode set. A sensor instrument for use with this sensor strip comprises a temperature sensor, at a side of a gap for accepting the sensor strip, opposite electrical contacts. The invention provides an accurate determination of the temperature of a sample.
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Citations
19 Claims
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1. A sensor system for measuring the concentration of an analyte in a biological sample, said sensor system comprising:
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a sensor instrument, said sensor instrument comprising a housing having a gap formed therein, said sensor instrument further comprising electrical contacts at a first side of said gap and a temperature sensor at a second side of said gap opposite said first side; and a sensor strip, said sensor strip comprising an electrically-insulating electrode substrate, an electrode set on a first side of said electrode substrate, and a heat conducting layer on a second side of said electrode substrate opposite said first side, said heat conducting layer comprising at least 20% by volume of said sensor strip and having a thermal conductivity of at least 10 W/m-K, said sensor strip receivable in said gap such that said electrode set electrically communicates with said electrical contacts, and said heat conducting layer communicates with said temperature sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for measuring the concentration of an analyte in a sample, comprising:
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providing an electrochemical sensor system, said electrochemical sensor system comprising a sensor instrument and a sensor strip, said sensor instrument comprising a housing having a gap formed therein for receiving said sensor strip, electrical contacts at a first side of said gap, and a temperature sensor at a second side of said gap;
said sensor strip comprising an electrically-insulating electrode substrate, an electrode set on a first side of said electrode substrate, and a conducting portion on a second side of said electrode substrate, said conducting portion comprising at least 20% by volume of said sensor strip and having a thermal conductivity of at least 10 W/m-K, said electrode set comprising at least two electrodes, said sensor strip further comprising a sensing region for receiving said sample;inserting said sensor strip into said sensor instrument gap such that said electrodes electrically communicate with said electrical contacts, and said conducting portion thermally communicates with said temperature sensor; applying said sample to said sensing region of said sensing strip; and electrochemically reacting said analyte in said sample with a reagent to provide an electrochemical signal corresponding to a concentration of the analyte in the sample at a temperature of said conducting portion. - View Dependent Claims (16, 17, 18, 19)
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Specification