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This supplemental report is being submitted to provide the results of 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.It has been over 7 years since the subject device was manufactured.Based on the results of the investigation and the information provided, it could not be determined what the foreign material was.There was no deformation to the area where the foreign material was detected.However, it could not be confirmed whether there was a deviation from the instructions for use reprocessing steps.Therefore, the cause of the material remaining in the device could not be determined.The instruction manual states the detection method associated with the event in "gif/cf-170 series, operation manual, chapter 3 ¿preparation and inspection", and preventative measures in "gif/cf-170 series, reprocessing manual, chapter 5 ¿reprocessing of the endoscope (and related reprocessing accessories)".Olympus will continue to monitor field performance for this device.
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