(b)(4).Evaluation summary: the device was returned for analysis.The reported foreign material on device was able to be confirmed.Based on a visual and chemical analysis inspection of the returned device, there is no indication of a product quality issue with respect to manufacture, design or labeling.Based on the information provided, a definitive cause for the reported issue cannot be determined.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other incidents from this lot.Based on the information reviewed, there is no evidence to indicate the presence a potential quality issue with respect to manufacture, design or labeling.(b)(4).
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