The following fields were updated due to additional information: d10: device available for eval yes, d10: returned to manufacturer on: 2021-09-09.H6: investigation summary: a device history record review was completed for provided lot number 2103419.The review did not reveal any detected abnormalities during the production process that could have contributed to the reported defect and all quality tests were found to be within specification.To aid in the investigation of this issue, a picture and two physical samples without packaging, one sample in a sealed package, and one opened sample were returned for evaluation by our quality engineer team.All of the returned samples were examined and the sample with the needle still in the vial showed a dark piece of material floating in the barrel.After a flush test was performed, the syringe and the filters from each of the ten flushes were checked.The foreign matter was not expelled from the barrel during the flush tests.A portion of this material was removed for fourier-transform infrared (ftir) spectral analysis.The ftir results show that the floating foreign matter was most likely composed of polycarbonate.It has been determined that this foreign particle most likely resulted from powder in the syringe assembly process.Due to friction between plastic racks and the assembly machinery rails, plastic powder can be produced.An accumulation of this powder could end up in the syringe due to static electricity.
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