(b)(4), the actual device was returned and sent to the manufacturing site for investigation.The manufacturing site reports "based on the investigation conducted on the returned sample, the paper of the package was found torn before use.Complaint was confirmed as reported.However complaint could not be verified as manufacturing related issue.This packaging torn may happen due to mishandling of the product.In current manufacturing procedure, 100% visual inspection is done at the packing area.Thus, any torn pouch product noticed will be culled out during this process.Ifu state that do not use if package is broken, and storage instruction mention that do not use if the product sterilization barrier or its packaging is compromised.In current manufacturing procedure, 100% light inspection is done during packing process.Operator who conduct the inspection will reject the product if there is any torn package.There is very unlikely for the torn package product will be released for shipment.No abnormality found during the packing process of this product.There is no mishandling issue during the packing process.Lrr (lot rejection rate) record shows there is no similar defect for this product found during qa buy off.".
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