This report is being supplemented to provide additional information based on the legal manufacturer's final investigation and device evaluation.The device was returned, and an evaluation was completed.During inspection, olympus confirmed the reported event of coating peeled off insertion tube.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, it is likely that an unrecommended chemical, such as xylocaine jelly, was applied to insertion section during procedure causing chemical damage to the coating of the insertion section.As a result, the coating peeled off by impact of procedures and reprocessing afterwards.The following information is stated in the instructions for use (ifu): 3.3, "inspection of the endoscope": 3, "inspect the external surface of the entire insertion section, including the bending section and the distal end of dents, bulges, swelling, scratches, peeling of coating, holes, sagging, transformation, bends, adhesion of foreign bodies, missing parts, protruding objects or other irregularities".Olympus will continue to monitor field performance for this device.
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