Methods of making calibration-adjusted sensors
First Claim
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1. A method of making a plurality of calibration-adjusted sensors comprising:
- separating a first pre-sensor from a sheet construction to form a first sensor, the first sensor having physical characteristics defining a first slope and y-intercept, wherein the sheet construction comprises a plurality of pre-sensors including the first pre-sensor, each pre-sensor comprising a working electrode, a counter electrode, and a sample chamber, wherein the sample chamber has at least part of the working electrode and the counter electrode arranged therein;
determining the first slope and y-intercept of the first sensor;
comparing the first slope and y-intercept of the first sensor to a predetermined level of slopes and y-intercepts; and
when the first slope and y-intercept is within the predetermined level of slopes and y-intercepts, physically modifying a second pre-sensor of the plurality of pre-sensors to form a second sensor that is separated from the sheet construction, the second sensor having the first physical characteristics;
orwhen the first slope and y-intercept deviates outside the predetermined level of slopes and y-intercepts, physically modifying the second pre-sensor based on the deviation to form a second sensor that is separated from the sheet construction, the second sensor having second physical characteristics, the second physical characteristics defining a second slope and y-intercept of the second sensor that is within the predetermined level of slopes and y-intercepts, wherein the second physical characteristics are different than the first characteristics;
wherein physically modifying the second pre-sensor comprises modifying the sample chamber of the second pre-sensor.
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Abstract
A sensor, and methods of making, for determining the concentration of an analyte, such as glucose, 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 may include an insertion monitoring trace to determine correct positioning of the sensor in a connector. The sensor is calibration-adjusted, eliminating the need for a user to enter a calibration code or for the meter to read a calibration code.
16 Citations
36 Claims
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1. A method of making a plurality of calibration-adjusted sensors comprising:
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separating a first pre-sensor from a sheet construction to form a first sensor, the first sensor having physical characteristics defining a first slope and y-intercept, wherein the sheet construction comprises a plurality of pre-sensors including the first pre-sensor, each pre-sensor comprising a working electrode, a counter electrode, and a sample chamber, wherein the sample chamber has at least part of the working electrode and the counter electrode arranged therein; determining the first slope and y-intercept of the first sensor; comparing the first slope and y-intercept of the first sensor to a predetermined level of slopes and y-intercepts; and when the first slope and y-intercept is within the predetermined level of slopes and y-intercepts, physically modifying a second pre-sensor of the plurality of pre-sensors to form a second sensor that is separated from the sheet construction, the second sensor having the first physical characteristics;
orwhen the first slope and y-intercept deviates outside the predetermined level of slopes and y-intercepts, physically modifying the second pre-sensor based on the deviation to form a second sensor that is separated from the sheet construction, the second sensor having second physical characteristics, the second physical characteristics defining a second slope and y-intercept of the second sensor that is within the predetermined level of slopes and y-intercepts, wherein the second physical characteristics are different than the first characteristics; wherein physically modifying the second pre-sensor comprises modifying the sample chamber of the second pre-sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of making a plurality of calibration-adjusted sensors comprising:
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separating a first pre-sensor from a sheet construction to form a first sensor, the first sensor having first physical characteristics, wherein a first slope and y-intercept of the first sensor is defined based on the first physical characteristics, wherein the sheet construction comprises a plurality of pre-sensors including the first pre-sensor, each pre-sensor comprising a working electrode, a counter electrode, and a sample chamber, wherein the sample chamber has at least part of the working electrode and the counter electrode arranged therein; determining the first slope and y-intercept of the first sensor; determining a representative slope and y-intercept, wherein the representative slope and y-intercept is based on the first slope and y-intercept; comparing the representative slope and y-intercept to a predetermined level of slopes and y-intercepts; and when the representative slope and y-intercept is within the predetermined level of slopes and y-intercepts, physically modifying a second pre-sensor of the plurality of pre-sensors to form a second sensor that is separated from the sheet construction, the second sensor having the first physical characteristics;
orwhen the representative slope and y-intercept deviates outside the predetermined level of slopes and y-intercepts, physically modifying the second pre-sensor based on the deviation to form a second sensor that is separated from the sheet construction, the second sensor having second physical characteristics, the second physical characteristics different than the first physical characteristics, wherein a slope and y-intercept of the second sensor is defined based on the second physical characteristics and is within the predetermined level of slopes and y-intercepts; wherein physically modifying the second pre-sensor comprises modifying the sample chamber of the second pre-sensor. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification