Methods Of Using An Electrochemical Biosensor
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Accused Products
Abstract
According to one embodiment of the present invention, an electrochemical sensor (10) for detecting the concentration of analyte in a fluid test sample is disclosed. The sensor (10) includes a counter electrode having a high-resistance portion for use in detecting whether a predetermined amount of sample has been received by the test sensor.
25 Citations
35 Claims
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1-12. -12. (canceled)
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13. A method for evaluating whether an electrochemical test sensor is properly filled, the test sensor including a working electrode electrically coupled to a first lead and a counter electrode electrically coupled to a second lead, the counter electrode including a low-resistance portion and a high-resistance portion, the method comprising:
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applying a voltage profile across the first and second leads; measuring the current profile at the first and second leads in response to the applied voltage profile; and generating an under-filled error signal when the measured current profile does not favorably compare to a predetermined profile. - View Dependent Claims (14, 15, 16, 17, 18)
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19-29. -29. (canceled)
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30. A method for evaluating whether an electrochemical sensor is properly filled, the test sensor including a working electrode coupled to a first lead, and counter electrode coupled to a second lead, the counter electrode including a high-resistance portion and a low-resistance portion, the test sensor including a reagent disposed on the working electrode that is adapted to react with glucose in a blood sample for producing an electrochemical reaction indicative of the concentration of the glucose in the blood sample, the method comprising:
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collecting a blood sample; applying a voltage profile across the first and second leads; measuring the current profile at the first and second leads in response to the applied voltage profile; and generating an under-filled error signal when the measured current profile is not of a predetermined shape. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification