The evaluation confirmed the reported issue.According to the inspection results by repair center engineer, the nozzle was clogged by foreign material, but the foreign material could not be identified.After the nozzle was removed, air and water feeding returned to normal.Additionally, the angulation was insufficient, there was great angle play, the internal elements in the bending section were misaligned, the insertion section was wrinkled slightly.And the root of the insertion section was buckled, causing two circle folds.The investigation is ongoing; therefore, the root cause of the reported event cannot be determined at this time.However, if additional information becomes available 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.The device met all specifications at the time of shipment.It has been over 13 years since the subject device was manufactured.Based on the results of the investigation, it is likely that a piece of the injection tube or the silicone rubber entered in the channel and clogged the nozzle.The specific root cause could not be determined at this time.The user may detect the suggested event by handling the device in accordance with the instructions for use: "preparation and inspection.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 field performance for this device.
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