This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.An olympus field service engineer (fse) went onsite to the facility to inspect the device.No device problem was found.A review of the device history record found no deviations that could have caused or contributed to the reported issue.A request was made on the light source ventilation confirmation.Based on the results of the investigation, it is likely the indicated phenomenon was caused by incorrect handling.The clv-190 instruction manual identifies the following related verbiage which could have prevented the phenomenon: ¿over-insufflating the lumen may cause patient pain, injury, bleeding, gas embolism, and/or perforation.¿ the cause of the reported event cannot be conclusively determined.Olympus will continue to monitor field performance for this device.
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