G4: 13nov2019; b4: 15nov2019.Failure analysis on the returned harmony valve shows that this bipap focus harmony sleeve (flow) valve was tested and no failures were identified.The determination could not be made that the device failed to meet specifications.The device was not being used for treatment when the reported event occurred, and there is not a relationship of the device to the reported problem.Submission of a report does not constitute an admission that medical personnel, user facility, importer, distributor, manufacturer, or product caused or contributed to the event.
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