(b)(4).Manufacturing site evaluation: the received clips have several bruises on the surface and they are severely deformed.The clips were analyzed by microscope.Attempts to recreate the complaint were made; in order to get the described error, the applicator had to be rotated approximately 90 degrees before or during the application progress.This resulted in parts of the jaw being pushed apart, which severly deformed the ligature clip.A review of the device quality and manufacturing history records was not possible, as the lot number is unknown.Based on the information available as well as a result of the investigation, the root cause of the failure is most likely user related.Corrective / preventive action(s) is not necessary.
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