Methods and systems for optimizing sensor function by the application of voltage
First Claim
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1. A method of initializing a sensor, comprising:
- determining a disconnection time, wherein the disconnection time is the amount of time a sensor has been disconnected from sensor electronics,wherein the sensor is an analyte sensor,selecting an initialization protocol based on the disconnection time, the initialization protocol selected from the group consisting of;
a first initialization scheme comprising a first series of voltage pulses and a second initialization scheme comprising a second series of voltage pulses,wherein the first initialization scheme is selected if the disconnection time falls within a first time range and the second initialization scheme is selected if the disconnection time falls within a second time range; and
applying the selected initialization protocol to the sensor.
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Abstract
A method is provided for initializing an analyte sensor, such as a glucose sensor. Where a sensor has been disconnected and reconnected, a disconnection time is determined and a sensor initialization protocol is selected based upon the disconnection time. The sensor initialization protocol may include applying a first series of voltage pulses to the sensor. A method for detecting hydration of a sensor is also provided.
88 Citations
22 Claims
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1. A method of initializing a sensor, comprising:
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determining a disconnection time, wherein the disconnection time is the amount of time a sensor has been disconnected from sensor electronics, wherein the sensor is an analyte sensor, selecting an initialization protocol based on the disconnection time, the initialization protocol selected from the group consisting of; a first initialization scheme comprising a first series of voltage pulses and a second initialization scheme comprising a second series of voltage pulses, wherein the first initialization scheme is selected if the disconnection time falls within a first time range and the second initialization scheme is selected if the disconnection time falls within a second time range; and applying the selected initialization protocol to the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of initializing a sensor, comprising:
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determining a disconnection time, wherein the disconnection time is the amount of time a sensor has been disconnected from sensor electronics, wherein the sensor is an analyte sensor, selecting an initialization protocol based on the disconnection time, the initialization protocol selected from the group consisting of; a first initialization scheme comprising a first series of voltage pulses, a second initialization scheme comprising a second series of voltage pulses, and a third initialization scheme comprising the application of no voltage to the sensor, wherein the first initialization scheme is selected if the disconnection time falls within a first time range, the second initialization scheme is selected if the disconnection time falls within a second time range, and the third initialization scheme is selected if the disconnection time is less than the first time range and the second time range; applying the selected initialization protocol to the sensor; and applying a stabilization voltage to the sensor for a first stabilization time.
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16. A method of initializing a sensor, comprising:
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determining a disconnection time, wherein the disconnection time is the amount of time a sensor has been disconnected from sensor electronics, wherein; the sensor is an analyte sensor; and the determining a disconnection time includes measuring the current output of the sensor and comparing the measured current output to a disconnection threshold value, selecting an initialization protocol based on the disconnection time, the initialization protocol selected from the group consisting of; a first initialization scheme comprising a first series of voltage pulses and a second initialization scheme comprising a second series of voltage pulses, wherein the first initialization scheme is selected if the disconnection time falls within a first time range and the second initialization scheme is selected if the disconnection time falls within a second time range; and applying the selected initialization protocol to the sensor. - View Dependent Claims (17, 18)
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19. A method of initializing a sensor, comprising:
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determining a disconnection time, wherein the disconnection time is the amount of time a sensor has been disconnected from sensor electronics, wherein the sensor is an analyte sensor, selecting an initialization protocol based on the disconnection time, the initialization protocol selected from the group consisting of; a first initialization scheme comprising a first series of voltage pulses and a second initialization scheme comprising a second series of voltage pulses, wherein the first initialization scheme is selected if the disconnection time falls within a first time range and the second initialization scheme is selected if the disconnection time falls within a second time range; and applying the selected initialization protocol to the sensor, and further wherein detecting hydration of the sensor prior to applying the selected initialization protocol, wherein detecting hydration includes; applying a series of hydration pulses to the sensor for a first hydration time; recording the current response of the sensor during application of the series of hydration pulses; and comparing the current response to a predetermined hydration threshold. - View Dependent Claims (20, 21, 22)
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Specification