SYSTEMS AND METHODS FOR REPLACING SIGNAL ARTIFACTS IN A GLUCOSE SENSOR DATA STREAM
First Claim
1. A method for processing data from a continuous glucose sensor, the method comprising:
- generating a data stream from a continuous glucose sensor;
detecting a signal artifact in the data stream comprising transient non-glucose dependent signal loss; and
augmenting the data stream to reduce or replace the detected signal loss.
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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 ischemia, pH changes, temperatures changes, 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 replaces some or the entire data stream continually or intermittently including signal estimation methods that particularly address transient signal artifacts. The system is also capable of detecting the severity of the signal artifacts and selectively applying one or more signal estimation algorithm factors responsive to the severity of the signal artifacts, which includes selectively applying distinct sets of parameters to a signal estimation algorithm or selectively applying distinct signal estimation algorithms.
846 Citations
23 Claims
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1. A method for processing data from a continuous glucose sensor, the method comprising:
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generating a data stream from a continuous glucose sensor; detecting a signal artifact in the data stream comprising transient non-glucose dependent signal loss; and augmenting the data stream to reduce or replace the detected signal loss. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A glucose sensor system for monitoring a glucose concentration in a host, the system comprising:
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a continuous glucose sensor configured to produce a data stream; a signal artifact detection module configured to detect a signal artifact in the data stream comprising transient non-glucose dependent signal loss; and a signal estimation module configured to augment the data stream to reduce or replace the signal loss. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification