(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The device was not returned for analysis.A review of the lot history record revealed no manufacturing nonconformities issued to the reported lot.Additionally, a review of the complaint history identified no similar incidents reported for leaks from this lot.All available information was investigated and a definitive cause for the reported sgc leak (loss of fluid column during preparation) could not be determined.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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