(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The device is expected to be returned for investigation.It has not yet been received.A follow-up report will be submitted with all additional relevant information.
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(b)(4).Evaluation summary: the device and packaging tray were returned for evaluation.The reported unsealed packaging was confirmed.Based on visual analysis of the returned device, there is no indication of a product quality issue with respect to manufacture, design or labeling.The investigation was unable to determine a conclusive cause for the reported difficulties.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history identified no similar incidents from this lot.Based on the information reviewed, there is no indication of a product quality issue with respect to manufacture, design or labeling.
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