The device was returned to an olympus service center for evaluation.Upon inspection and testing of the returned device, service observed the forceps elevator wire was cut off due to mechanical/chemical stress.A review of the device history record found no deviations that could have caused or contributed to the reported issue.The device met all specifications at the time of shipment.It has been over 6 years since the subject device was manufactured.Based on the results of the legal manufacturer's investigation, it is likely the forceps elevator wire was cut off due to stress from usage over time.However, a definitive root cause could not be identified.In addition, service found the bending angle was out of specification, there was play in the angulation knob, the forceps elevator was discolored, the adhesive on the bending section cover was cracked, the insertion tube was scratched, the insertion tube was wrinkled, the suction cylinder was scraped, the rubber cover on switch button #1 was scratched, the grip cover was scratched, and the light guide tube was wrinkled.Per the legal manufacturer, these other device issues found by service have no potential to cause or contribute to death or serious injury if the malfunctions were to recur.Olympus will continue to monitor field performance for this device.
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