Investigation: two sample units belonging to lot number 1804274 were received for evaluation by our quality engineer.Through visual inspection of the first sample, foreign matter was not observed within the syringe or outside of the syringe.Through visual inspection of the second sample, a polypropylene particle was observed outside of the syringe, within the blister packaging.There were no signs of marking defects on either of the returned samples.A device history record review was performed and it did not reveal any detected quality issues during the production process that could have contributed to this incident.Polypropylene particles result from the molding and transport processes of the syringes.Based on the occurrence rate of this defect for the provided lot number, the acceptance criteria has not been exceeded.Within the assembly station, there is a de-ionizer which works to remove polypropylene particles from within the barrels.A quality project has been opened to reduce the presence of foreign matter inside of the blister packaging.A particle extractor is being installed in the packaging machine within the manufacturing line as part of this project.
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