Analyte monitoring device and methods of use
First Claim
1. A method, comprising:
- positioning at least a portion of an electrochemical sensor in fluid contact with interstitial fluid under a skin layer;
generating one or more signals with the electrochemical sensor corresponding to a monitored analyte level in the interstitial fluid;
communicating with sensor electronics sensor data associated with the generated one or more signals from the electrochemical sensor to a receiver unit;
determining, using a processor of the receiver unit, a rate of change of the monitored analyte level based on the sensor data received from the sensor electronics;
determining, using the processor, whether calibration is appropriate based on the determined rate of change and a characteristic of the electrochemical sensor;
displaying, on a display of the receiver unit, information corresponding to the monitored analyte level after determining whether calibration is appropriate based on the determined rate of change and the characteristic of the electrochemical sensor; and
disabling the display from displaying the information corresponding to the monitored analyte level when the display has not been activated for a predetermined period of time, wherein during the time when the display is disabled, receiving the sensor data from the sensor electronics and processing the sensor data by a processing unit of the receiver unit.
3 Assignments
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
15 Claims
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1. A method, comprising:
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positioning at least a portion of an electrochemical sensor in fluid contact with interstitial fluid under a skin layer; generating one or more signals with the electrochemical sensor corresponding to a monitored analyte level in the interstitial fluid; communicating with sensor electronics sensor data associated with the generated one or more signals from the electrochemical sensor to a receiver unit; determining, using a processor of the receiver unit, a rate of change of the monitored analyte level based on the sensor data received from the sensor electronics; determining, using the processor, whether calibration is appropriate based on the determined rate of change and a characteristic of the electrochemical sensor; displaying, on a display of the receiver unit, information corresponding to the monitored analyte level after determining whether calibration is appropriate based on the determined rate of change and the characteristic of the electrochemical sensor; and disabling the display from displaying the information corresponding to the monitored analyte level when the display has not been activated for a predetermined period of time, wherein during the time when the display is disabled, receiving the sensor data from the sensor electronics and processing the sensor data by a processing unit of the receiver unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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positioning at least a portion of an electrochemical sensor in fluid contact with interstitial fluid under a skin layer; generating a plurality of signals with the electrochemical sensor corresponding to a monitored analyte level in the interstitial fluid; communicating with sensor electronics sensor data associated with the generated plurality of signals from the electrochemical sensor to a receiver unit; determining, using a processor of the receiver unit, whether the electrochemical sensor has reached equilibrium based on the received sensor data from the sensor electronics; determining, using the processor of the receiver unit, that calibration is appropriate based on whether the electrochemical sensor has reached equilibrium; displaying, on a display of the receiver unit, information corresponding to the monitored analyte level after determining whether calibration is appropriate based on whether the electrochemical sensor has reached equilibrium; and disabling the display from displaying the information corresponding to the monitored analyte level when the display has not been activated for a predetermined period of time, wherein during the time when the display is disabled, receiving the sensor data from the sensor electronics and processing the sensor data by a processing unit of the receiver unit. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification