Analyte Sensor Sensitivity Attenuation Mitigation
First Claim
1. An apparatus, comprising:
- a glucose sensor having a first sensing area and a second sensing area configured for fluid contact with biofluid under a skin surface for monitoring glucose level in the biofluid;
one or more processors operatively coupled to the glucose sensor; and
a memory operatively coupled to the one or more processors and configured to store instructions which, when executed by the one or more processors, receives a first and second signals respectively from the first and second sensing areas of the glucose sensor, detects a dropout in a signal level associated with one of the first signal or the second signal, compares the first signal and the second signal to determine a variation between the first signal and the second signal, the dropout is detected, and confirms the one of the first signal or the second signal as a valid glucose sensor signal corresponding to the monitored glucose level when the determined variation between the first signal and the second signal is less than a predetermined threshold level.
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Abstract
Method and apparatus for receiving a first signal from a first working electrode of a glucose sensor positioned at a first predetermined position under the skin layer, receiving a second signal from a second working electrode of the glucose sensor positioned at a second predetermined position under the skin layer, the second signal received substantially contemporaneous to receiving the first signal, detecting a dropout in the signal level associated with one of the first or second signals, comparing the first signal and the second signal to determine a variation between the first and second signals, and confirming one of the first or second signals as a valid glucose sensor signal output when the determined variation between the first and the second signals is less than a predetermined threshold level are provided.
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Citations
17 Claims
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1. An apparatus, comprising:
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a glucose sensor having a first sensing area and a second sensing area configured for fluid contact with biofluid under a skin surface for monitoring glucose level in the biofluid; one or more processors operatively coupled to the glucose sensor; and a memory operatively coupled to the one or more processors and configured to store instructions which, when executed by the one or more processors, receives a first and second signals respectively from the first and second sensing areas of the glucose sensor, detects a dropout in a signal level associated with one of the first signal or the second signal, compares the first signal and the second signal to determine a variation between the first signal and the second signal, the dropout is detected, and confirms the one of the first signal or the second signal as a valid glucose sensor signal corresponding to the monitored glucose level when the determined variation between the first signal and the second signal is less than a predetermined threshold level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification