TRANSCUTANEOUS ANALYTE SENSOR
First Claim
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1. A method of calibrating a glucose measuring device in a host, the method comprising:
- generating a signal from a continuous glucose measuring device indicative of a glucose concentration in a host;
calculating a rate of change of the signal;
determining a reference value from reference data obtained using a reference glucose measuring device; and
calibrating the signal to obtain a calibrated signal, wherein the step of calibrating comprises using the reference value only when the rate of change of the signal is less than a predetermined threshold.
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Abstract
The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.
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Citations
45 Claims
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1. A method of calibrating a glucose measuring device in a host, the method comprising:
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generating a signal from a continuous glucose measuring device indicative of a glucose concentration in a host;
calculating a rate of change of the signal;
determining a reference value from reference data obtained using a reference glucose measuring device; and
calibrating the signal to obtain a calibrated signal, wherein the step of calibrating comprises using the reference value only when the rate of change of the signal is less than a predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. The method of claim 15, where the step of predicting a future value is based at least in part on the reference data.
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16. A device comprising a computer readable memory comprising code for calibrating glucose data from a continuous glucose measuring device, wherein the code comprises:
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instructions configured to process glucose data received from a continuous glucose measuring device;
instructions configured to calculate a rate of change of the glucose data from the continuous glucose measuring device; and
instructions configured to receive and calibrate the glucose data using a glucose concentration measured by a reference glucose measuring device only when the rate of change of the glucose data is less than a predetermined threshold, whereby calibrated glucose data is obtained. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A device configured to continuously measure an analyte in a host, the system comprising:
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a sensor configured to provide a signal indicative of an analyte concentration in a host; and
a processor operably connected to the sensor and comprising programming configured to determine a rate of change of the signal, wherein the processor further comprises programming configured to receive and process reference data from a reference analyte monitor, and wherein the processor further comprises programming configured to calibrate the signal based at least in part on the reference data. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification