A lot number was not provided, as a result the device history record review could not be performed.As part of our manufacturing process, all device history records are reviewed and approved by quality, prior to release of product.Samples were not received for the investigation.Because a sample was not returned, we were unable to perform a follow up investigation to include functional and visual evaluations to confirm the defect and determine the root cause.If the sample is returned in the future, this complaint will be re-opened for further investigation.No formal investigation is being conducted as the pad was used in a manner not designed for use.Management personnel will be notified of this complaint.Complaint trending will continue to be monitored and corrective actions will be evaluated if an increase of this failure mode occurs.
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