The reporter¿s occupation and health profession are unknown at this time.The returned device was inspected and the scope¿s nozzle was replaced.In addition, as part of our investigation, the olympus field service engineer (fse) has advised that the foreign matter can be removed.The fse identified the foreign matter in the nozzle as the debris of the rubber from the perfusion cannula.The fse reported that the customer can reprocess the scope/nozzle in accordance with the reprocessing manual and advised the customer to pay attention to the loss of full perfusion and replace it in time.An investigation is ongoing to obtain additional information regarding the reported event.If additional information is received 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.It has been over 9 years since the subject device was manufactured.Based on the results of the investigation, it is likely that a part of the perfusion cannula was broken, a broken piece entered into the air/water channel, and then the nozzle was clogged with it.A definitive root cause cannot be identified.This information is addressed in the instructions for use (ifu): "-operation manual_ preparation and inspection of the endoscope_ inspect the air/water nozzle at the distal end of the endoscope¿s insertion section for abnormal swelling, bulges, dents, or other irregularities.-inspection of the endoscopic system.* inspection of the air-feeding function.* inspection of the objective lens cleaning function." olympus will continue to monitor the field performance of this device.
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