Systems and methods for replacing signal artifacts in a glucose sensor data stream
First Claim
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1. A method for processing sensor data from a continuous glucose sensor, the method comprising:
- receiving continuous glucose sensor data, the continuous glucose sensor data;
determining, using processing electronics, a level of reliability associated with the continuous glucose sensor data, wherein the level of reliability is selected from three or more predetermined levels of reliability; and
processing the sensor data differently depending upon the determined level of reliability.
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Abstract
Systems and methods for minimizing or eliminating transient non-glucose related signal noise due to non-glucose rate limiting phenomenon such as interfering species, ischemia, pH changes, temperatures changes, known or unknown sources of mechanical, electrical and/or biochemical noise, and the like. The system monitors a data stream from a glucose sensor and detects signal artifacts that have higher amplitude than electronic or diffusion-related system noise. The system processes some or the entire data stream continually or intermittently based at least in part on whether the signal artifact event has occurred.
767 Citations
21 Claims
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1. A method for processing sensor data from a continuous glucose sensor, the method comprising:
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receiving continuous glucose sensor data, the continuous glucose sensor data; determining, using processing electronics, a level of reliability associated with the continuous glucose sensor data, wherein the level of reliability is selected from three or more predetermined levels of reliability; and processing the sensor data differently depending upon the determined level of reliability. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for processing sensor data from a continuous glucose sensor, the method comprising:
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receiving continuous glucose sensor data, the continuous glucose sensor data; determining, using processing electronics, a level of reliability associated with the continuous glucose sensor data, wherein the level of reliability is selected from three or more predetermined levels of reliability; and processing the sensor data differently depending upon the determined level of reliability, wherein determining a level of reliability comprises performing at least one of a first derivative analysis or a second derivative analysis of the continuous glucose sensor data for a time period.
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9. A method for processing sensor data from a continuous glucose sensor, the method comprising:
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receiving continuous glucose sensor data, the continuous glucose sensor data; determining, using processing electronics, a level of reliability associated with the continuous glucose sensor data, wherein the level of reliability is selected from three or more predetermined levels of reliability; and processing the sensor data differently depending upon the determined level of reliability, wherein determining a level of reliability comprises comparing a raw version of the sensor data with a filtered version of the sensor data to obtain at least one residual and comparing the at least one residual to at least one threshold.
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10. A method for processing sensor data from a continuous glucose sensor, the method comprising:
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receiving continuous glucose sensor data, the continuous glucose sensor data; determining, using processing electronics, a level of reliability associated with the continuous glucose sensor data, wherein the level of reliability is selected from three or more predetermined levels of reliability; and processing the sensor data differently depending upon the determined level of reliability, wherein the processing comprises determining when to utilize and/or display different representations of the sensor data, wherein the different representations are selected from a plurality of predetermined different representations of the sensor data.
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11. A method for processing sensor data from a continuous glucose sensor, the method comprising:
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receiving continuous glucose sensor data, the continuous glucose sensor data; determining, using processing electronics, a level of reliability associated with the continuous glucose sensor data, wherein the level of reliability is selected from three or more predetermined levels of reliability; and processing the sensor data differently depending upon the determined level of reliability, wherein the processing comprises determining when to when to utilize different filters.
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12. A system for processing sensor data from a continuous glucose sensor, the system comprising:
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a continuous glucose sensor configured to generate sensor data; processing electronics operably connected to the continuous glucose sensor, wherein the processing electronics are configured to determine a level of reliability of the sensor data and to process the sensor data differently depending upon the determined level of reliability, wherein determining the level of reliability includes selecting the level of reliability from three or more predetermined levels of reliability. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A system for processing sensor data from a continuous glucose sensor, the system comprising:
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a continuous glucose sensor configured to generate sensor data; processing electronics operably connected to the continuous glucose sensor, wherein the processing electronics are configured to determine a level of reliability of the sensor data and to process the sensor data differently depending upon the determined level of reliability, wherein determining the level of reliability includes selecting the level of reliability from three or more predetermined levels of reliability, wherein the processing electronics are configured to determine the level of reliability based one at least one of a first derivative analysis or a second derivative analysis of the continuous glucose sensor data for a time period.
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19. A system for processing sensor data from a continuous glucose sensor, the system comprising:
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a continuous glucose sensor configured to generate sensor data; processing electronics operably connected to the continuous glucose sensor, wherein the processing electronics are configured to determine a level of reliability of the sensor data and to process the sensor data differently depending upon the determined level of reliability, wherein determining the level of reliability includes selecting the level of reliability from three or more predetermined levels of reliability, wherein the processing electronics are configured to determine the level of reliability based on a comparison of a signal residual with a threshold, and wherein the signal residual is based on a comparison of raw and filtered versions of the sensor data.
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20. A system for processing sensor data from a continuous glucose sensor, the system comprising:
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a continuous glucose sensor configured to generate sensor data; processing electronics operably connected to the continuous glucose sensor, wherein the processing electronics are configured to determine a level of reliability of the sensor data and to process the sensor data differently depending upon the determined level of reliability, wherein determining the level of reliability includes selecting the level of reliability from three or more predetermined levels of reliability, wherein the processing electronics are configured to process the sensor data by determining when to utilize and/or display different representations of the sensor data, wherein the different representations are selected from a plurality of predetermined different representations of the sensor data.
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21. A system for processing sensor data from a continuous glucose sensor, the system comprising:
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a continuous glucose sensor configured to generate sensor data; processing electronics operably connected to the continuous glucose sensor, wherein the processing electronics are configured to determine a level of reliability of the sensor data and to process the sensor data differently depending upon the determined level of reliability, wherein determining the level of reliability includes selecting the level of reliability from three or more predetermined levels of reliability, wherein the processing electronics are configured to process the sensor data by determining when to utilize different filters.
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Specification