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It was reported that brown staining was observed near the plunger.As the physical sample was not returned, a comprehensive evaluation could not be performed.To support the investigation, one photograph was provided for review by the quality team.The image shows a syringe within its packaging blister, displaying discoloration at the syringe barrel flange.Based on the photograph, the discoloration appears to be embedded degraded resin.No additional defects or imperfections were noted.A review of the device history record was conducted for material number 302832, lot 5154021.The review confirmed that no quality issues were detected during the production of this lot that could have contributed to the reported condition.There were no related quality notifications, and all processes and final inspections complied with specification requirements.To date, no other similar events have been reported for this lot.Based on the investigation and the photographic evidence, the condition reported by the customer has been confirmed.Without the actual physical sample analysis, a probable root cause could not be offered.Complaints received for this device and reported condition will continue to be tracked and trended.Information will be captured on trend reports and monitored monthly.Our business team regularly reviews the collected data for identification of emerging trends.
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