This supplemental report is being submitted to provide the results of the legal manufacturer's final investigation.New information added to the following fields: h3 and h6.A review of the device history record found no deviations that could have caused or contributed to the reported issue.It has been over 19 years since the subject device was manufactured.The reportable malfunction was confirmed.A definitive root cause was not identified; however, based on the results of the investigation, the probable cause of the malfunctions, such as the coating on the insertion tube of the insertion section being peeled off and the disappearance of markings, is likely due to the stress of repeated use, external factors, or mishandling of the device.The event can be prevented by following the instructions for use which state: chapter 3 ¿preparation and inspection¿, section 3.2 ¿preparation and inspection of the endoscope¿ describes how to inspect for the subject events.Olympus will continue to monitor field performance for this device.
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