The subject device has been returned to olympus for evaluation.In addition to the reportable malfunction mentioned in b5, it was observed, leak was noted at a rubber, due to wear of angle wire, bending section could not be controlled at all, the light guide lens was discolored, the adhesive on the bending section cover (a-rubber) was separated and the angle wire was worn, and bending return angle was not possible to be achieved.The investigation is ongoing, and a definitive root cause of the reported event cannot be determined at this time.If additional information becomes available, this report will be supplemented accordingly.
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This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the results of the investigation, a definitive root cause of the reported angle operation issue could not be determined, however, it is likely that the angulation wire sliding in the coil became rough/uneven do to fluid invasion into the bending section, resulting in a decrease in the ability of the curved section to follow the angle knob's operation.The event may be detected by following the instructions for use section below: 3.2 inspection of the endoscope.Olympus will continue to monitor field performance for this device.
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