Analyte Sensor with Insertion Monitor, and Methods
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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.
15 Citations
37 Claims
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1-19. -19. (canceled)
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20. A sensor for determining a concentration of an analyte, the sensor comprising:
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a first substrate having a first major surface, a second major surface opposing the first major surface, a proximal end, and a distal end that mates with an analyte meter; a second substrate having a first major surface, a second major surface opposing the first major surface, a proximal end, and a distal end that mates with an analyte meter, wherein the first and second substrate 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 and a conductive trace extending from the proximal end to the distal end of the first substrate; and a counter electrode disposed on the first major surface of the second substrate and conductive trace extending from the proximal end to the distal end of the second substrate; wherein the distal end of the first substrate comprises a cut-out to expose a portion of the conductive trace of the counter electrode on the first major surface of the second substrate, and wherein the distal end of the second substrate comprises a cut-out to expose a portion of the conductive trace of the working electrode on the first major surface of the first substrate. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification