Analyte monitoring device and methods of use
First Claim
1. A device for monitoring glucose concentration in a biological sample of a host, the device comprising:
- a continuous glucose sensor that produces a data stream indicative of a glucose concentration in the host, the data stream including a plurality of time spaced sensor data points; and
an integrated receiver that receives the data stream from the continuous glucose sensor, wherein the integrated receiver includes a single point glucose monitor, a processor, and a computer readable memory, wherein the single point glucose monitor is configured to receive a biological sample from the host and to measure the concentration of glucose in the sample, and wherein the computer readable memory includes instructions configured to cause the processor to process the data stream received from the continuous glucose sensor, determine if a signal level of the plurality of time spaced data points in the data stream exceeds a first predetermined threshold, determine if a rate of change of the time spaced data points in the data stream exceeds a second predetermined threshold, and calibrate the data stream using the glucose concentration measured by the single point glucose monitor based on the signal level determination and the rate of change determination;
wherein the computer readable memory includes instructions configured to cause the processor to calibrate or recalibrate the data stream received from the continuous glucose sensor when the determined signal level of the plurality of time spaced data points in the data stream is below the first predetermined threshold and the determined rate of change of the time spaced data points in the data stream is below the second predetermined threshold.
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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.
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Citations
18 Claims
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1. A device for monitoring glucose concentration in a biological sample of a host, the device comprising:
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a continuous glucose sensor that produces a data stream indicative of a glucose concentration in the host, the data stream including a plurality of time spaced sensor data points; and an integrated receiver that receives the data stream from the continuous glucose sensor, wherein the integrated receiver includes a single point glucose monitor, a processor, and a computer readable memory, wherein the single point glucose monitor is configured to receive a biological sample from the host and to measure the concentration of glucose in the sample, and wherein the computer readable memory includes instructions configured to cause the processor to process the data stream received from the continuous glucose sensor, determine if a signal level of the plurality of time spaced data points in the data stream exceeds a first predetermined threshold, determine if a rate of change of the time spaced data points in the data stream exceeds a second predetermined threshold, and calibrate the data stream using the glucose concentration measured by the single point glucose monitor based on the signal level determination and the rate of change determination; wherein the computer readable memory includes instructions configured to cause the processor to calibrate or recalibrate the data stream received from the continuous glucose sensor when the determined signal level of the plurality of time spaced data points in the data stream is below the first predetermined threshold and the determined rate of change of the time spaced data points in the data stream is below the second predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification