(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.Evaluation summary: all available information was investigated and the and the reported difficult to insert was confirmed due to the observed torn silicone valve of the steerable guide catheter (sgc).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 from this lot.All available information was investigated and based on the information review and the result of the returned device analysis, the reported inability/difficulty inserting the cds clip introducer into the sgc appears to be due to the observed torn sgc silicone valve; however, how the silicone valve got torn, cannot be confirmed.It is possible that the user technique during device preparation resulted in the torn silicone valve; however, this cannot be confirmed.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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