Sensor (b)(4) has been returned and investigated.Performed visual inspection on the returned sensor and no issues were observed.The sensor adhesive was returned and intact.An extended investigation has been performed for the reported complaint and determined that there was no indication that the product did not meet specification.Dose audit reports and environmental monitoring reports, including bioburden and endotoxin testing, were reviewed for the quarterly period during which this complaint unit was manufactured.No abnormalities were found, and the investigation showed all processes were effective.No malfunction or product deficiency was identified.The dhrs (device history record) for the libre sensor and sensor kit were reviewed, and the dhrs showed the libre sensor and sensor kit passed all tests prior to release.All pertinent information available to abbott diabetes care has been submitted.
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