(b)(4).The customer returned one dilator with a blue body and a white hub for evaluation.Visual examination of the dilator revealed the tip was damaged.Microscopic examination showed that one side of the dilator tip was missing.The edges of the broken section of the dilator tip were smooth.No white regions, which indicate exposure to stress, were observed.The damage of the tip was consistent with damage resulting from sharps.The dilator tip inner and outer diameter, and the dilator body length were measured and all were found to be within specification.A device history record review was performed on the dilator and no relevant manufacturing issues were identified.The ifu provided with this kit describes instructions to "enlarge cutaneous puncture site with cutting edge of scalpel, if necessary, positioned away from guidewire." the ifu also cautions to not use excessive force when introducing tissue dilator.The customer reported an issue of the dilator tip damaged during use was confirmed during the sample investigation.The tip of the dilator was found to be damaged in a manner consistent with damage resulting from sharps.A device history record review was performed, and no relevant findings were identified.Based on the customer report and the condition of the returned sample the probable cause of this issue is likely operational context.No additional action shall be taken at this time.
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