Analyte Sensor with Insertion Monitor, and Methods
First Claim
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1. A meter for releasable engagement with a sensor, the meter configured to turn on upon contact with an insertion monitor present on a surface of the sensor, and, the meter configured to recognize a calibration code from the insertion monitor.
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Abstract
A sensor, and methods of making, for determining the concentration of an analyte, such as glucose or lactate, in a biological fluid such as blood or serum, using techniques such as coulometry, amperometry, and potentiometry. The sensor includes a working electrode and a counter electrode, and can include an insertion monitoring trace to determine correct positioning of the sensor in a connector.
205 Citations
23 Claims
- 1. A meter for releasable engagement with a sensor, the meter configured to turn on upon contact with an insertion monitor present on a surface of the sensor, and, the meter configured to recognize a calibration code from the insertion monitor.
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8. The meter of claim 7, wherein the sample is less than about 1 micoliter.
- 9. A meter for releasable engagement with a sensor, the meter configured to recognize a calibration code from the sensor when the sensor is engaged with the meter.
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15. A system for determining the concentration of an analyte in a sample, the system comprising:
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an analyte sensor for determining the concentration of an analyte in a sample, the sensor comprising an indicator monitor encoding calibration code; and a meter configured for electrical connection to the indicator monitor r and to read the calibration code. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A sensor for determining a concentration of analyte, the sensor comprising:
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a first substrate having a first major surface and a second major surface opposing the first major surface; a second substrate having a first major surface and a second major surface opposing the first major surface, the first and second substrates being disposed so that the first major surface of the first substrate is in facing relationship with the first major surface of the second substrate; a working electrode disposed on the first major surface of the first substrate; a counter electrode disposed on the first major surface of one of the first substrate and the second substrate; a sample chamber having the working electrode and counter electrode present therein; an insertion monitor on one of the first and the second major surfaces of one of the first substrate and the second substrate, the insertion monitor including a conductive stripe extending across the sensor and the insertion monitor providing encoded calibration information about the sensor. - View Dependent Claims (22, 23)
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Specification