Date of event: unknown.The date received by manufacturer has been used for this field.Investigation summary: our quality engineer inspected the samples submitted for evaluation.Bd received seven 24g insyte autoguard bc winged units from lot number 1103236.Four of the seven units were returned sealed, and the rest were opened.A gross visual inspection found no damage to the components of the sealed units.The sealed units were tested for needle penetration force, catheter penetration force, and catheter drag force.All tested units were found to be within specification for all the tested categories.The opened units were inspected under a microscope for damage to the catheter tubing, catheter tip, or needle tip.No damage was found to the catheter tubing or needle tip on any of the opened units.However, one of the opened units was found to have an unacceptable catheter tip.Further inspection was performed on the identified defective unit.There were small traces of media found near the catheter tip and a loose strand of material was identified inside the catheter tubing.The loose material may have been skiving, however, as no damage was found on the rest of the catheter tubing, this cannot be confirmed.Likewise, no other media was observed inside the catheter so it cannot be determined with certainty if the unit was used.The reported issue was confirmed on the one opened unit regarding the catheter tip integrity.This was the physical/mechanical evidence to confirm and support a manufacturing process related issue for the reported defect.There was no evidence to support or confirm a defect of the needle being dull or blunt and for threading difficulty.A device history record review showed no non-conformances associated with this issue during the production of this batch.The appropriate personnel have been notified and we appreciate you taking the time to bring this observation to our attention.Complaints received for this device and reported condition will continue to be tracked and trended.Information will be captured on trend reports and monitored.Our business team regularly reviews the collected data for identification of emerging trends.Investigation conclusion: reported defect of threading difficult and needle dull/blunt was not confirmed but the defect of catheter tip integrity was confirmed.Root cause for catheter tip integrity was confirmed to be manufacturing related.
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