Analyte monitoring device and methods of use
First Claim
1. A system, comprising:
- a glucose sensor that produces a data stream indicative of a glucose concentration, the data stream comprising a plurality of time spaced sensor data points;
a receiver that receives the data stream from the glucose sensor, wherein the receiver comprises;
a processor; and
a computer readable memory comprising;
instructions configured to cause the processor to determine if calibration of the glucose sensor is appropriate;
instructions configured to cause the processor to evaluate a change in at least one characteristic associated with the glucose sensor;
instructions configured to cause the processor to determine a rate of change of the data stream from the glucose sensor; and
instructions configured to cause the processor to not recalibrate or not update calibration of the glucose sensor when the rate of change of the data stream is above a threshold rate and when the evaluation of the change in the at least one characteristic is not indicative of the change in the at least one characteristic of the glucose sensor.
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0 Petitions
Accused Products
Abstract
An analyte monitor includes a sensor, a sensor control unit, and a display unit. The sensor has, for example, a substrate, a recessed channel formed in the substrate, and conductive material disposed in the recessed channel to form a working electrode. The sensor control unit typically has a housing adapted for placement on skin and is adapted to receive a portion of an electrochemical sensor. The sensor control unit also includes two or more conductive contacts disposed on the housing and configured for coupling to two or more contact pads on the sensor. A transmitter is disposed in the housing and coupled to the plurality of conductive contacts for transmitting data obtained using the sensor. The display unit has a receiver for receiving data transmitted by the transmitter of the sensor control unit and a display coupled to the receiver for displaying an indication of a level of an analyte. The analyte monitor may also be part of a drug delivery system to alter the level of the analyte based on the data obtained using the sensor.
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Citations
17 Claims
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1. A system, comprising:
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a glucose sensor that produces a data stream indicative of a glucose concentration, the data stream comprising a plurality of time spaced sensor data points; a receiver that receives the data stream from the glucose sensor, wherein the receiver comprises; a processor; and a computer readable memory comprising; instructions configured to cause the processor to determine if calibration of the glucose sensor is appropriate; instructions configured to cause the processor to evaluate a change in at least one characteristic associated with the glucose sensor; instructions configured to cause the processor to determine a rate of change of the data stream from the glucose sensor; and instructions configured to cause the processor to not recalibrate or not update calibration of the glucose sensor when the rate of change of the data stream is above a threshold rate and when the evaluation of the change in the at least one characteristic is not indicative of the change in the at least one characteristic of the glucose sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method implemented using one or more processors, the method comprising:
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receiving a data stream indicative of a glucose concentration from a glucose sensor, the data stream comprising a plurality of time spaced sensor data points; determining if calibration of the glucose sensor is appropriate; evaluating a change in at least one characteristic associated with the glucose sensor; determining a rate of change of the data stream from the glucose sensor; and determining to not recalibrate or not update calibration of the glucose sensor when the rate of change of the data stream is above a threshold rate and when the evaluation of the change in the at least one characteristic is not indicative of the change in the at least one characteristic of the glucose sensor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification