H.6.Investigation summary: three photos, one loose tip cap and one unopened 50-count tip cap tray from confirmed to be from batch 8149998 (p/n 305822) were received and evaluated.The tray was opened and all the tip caps inside were visually inspected with one of the tip caps was observed to contain a brown embedded foreign matter.The loose tip cap was also observed to contain a brown embedded foreign matter.In both cases the fm was present on the inner and outer cylinders.It appeared to be burnt plastic and was larger than level 3 in size, which was rejectable per product specification.Potential root cause for the embedded foreign matter defect is associated with the molding process.The embedded fm is most likely degraded plastic.This occurs when the resin is exposed to prolonged high temperatures inside the molding machine, such as during start up.Per procedure, after start up, all molded parts are scrapped until no degraded plastic is observed.If this is not performed thoroughly a piece with this condition can get through.This type of defect is cosmetic and does not pose risk to the customer.No corrective actions are necessary based on the defective rate identified.Batch 8149998 is considered in compliance with our product specification requirements.A device history record review showed no rejected inspections or quality issues during the production of the provided lot number that could have contributed to the reported defect.
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