(b)(4).A device history record (dhr) review was performed and there were no issues found that could relate to the reported complaint.The sample was returned for evaluation.A visual exam was performed and it was observed that the product was detached.It was reported that the product detached during use.Improper assembly could be the reason that the product detaches.In the current manufacturing procedure, 100% leak testing during the assembly process is conducted, along with a 100% visual inspection at the packing area; therefore, any defects would be detected prior to release.Ten pieces of the same catalog number were taken at the manufacturing facility and inspected.No visual defects were found and all ten passed leak testing.Although the product was found to be detached, a root cause for the issue could not be established.(b)(4).
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