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Investigation ¿ evaluation: a review of the complaint history, device history record, documentation, quality control, specifications, and a visual inspection of the returned device were conducted during the investigation.The visual inspection of the returned device confirmed the presence of a black, hair like fiber inside sealed package.The fiber was measured to be 3.9 cm in length.Additionally, a document based investigation evaluation was performed.A review of the device history record showed the lot was released meeting all finished goods release criteria.It should be noted there were no other reported complaints for this lot number.Based on the information provided, the examination of the returned product, and the results of our investigation, the root cause was determined to be related to the device manufacturing process.We will continue to monitor for similar complaints.Per the quality engineering risk assessment, no further action is required.
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