(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.It is indicated that the device is not returning for evaluation; therefore a failure analysis of the complaint device could not be completed.Based on the reported information, there is no indication of a product quality issue with respect to manufacture, design, or labeling.A conclusive cause for the reported deflation issue could not be determined.The additional non-surgical treatment was due to operational context.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 did not indicate a lot specific quality issue.Based on the reviewed information, there is no indication the issue was caused by, or related to the design, manufacture or labeling of the device.(b)(4).
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