Sensor fault detection using analyte sensor data pattern comparison
US10076285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | May 6, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0228
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Analyte sensor faults are detected. Datasets of glucose values sensor electronics are coupled to a glucose sensor in fluid contact with interstitial fluid under a skin surface. Baseline median glucose value and glucose variability values are computed, based on the first dataset. A baseline data point is stored. Evaluation median glucose value and variability are computed, based on the second dataset of glucose values. An evaluation data point is stored. A magnitude of a vector that extends between the baseline data point and the evaluation data point is computed. A component of the magnitude of the vector that is parallel to a hypoglycemia risk contour line is computed and compared to a predefined threshold value. An indication that a sensor fault has been detected if the component is greater than a threshold is displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.