This report is being submitted retrospectively as part of internal review.Based on the initial escalation analysis, the sensor was taking longer than usual to recover after insertion and was likely to trigger a sensor replacement alert due to the performance deviation by day 21 after insertion.Thus, the rma was authorized for return of the sensor to further investigate the slow recovery of the sensor.Upon receipt of the sensor, the sensor was tested in-house, but the failure mode could not be reproduced during the returned product analysis testing.Thus, the return product investigation is inconclusive.This may occur in some instances where the failure mode that presents itself in the body is not reproduced in the lab.Based on in vivo behavior, the potential root cause may be lack of hydration after insertion.
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