The device was returned to olympus for evaluation and the customer's allegation was confirmed.Based on the results of the investigation, the foreign material could not be identified.A definitive root cause for the remaining foreign material could not be established.A device history review revealed no issues that could have caused or contributed to the reported issue.The event can be detected and prevented by handling the device in accordance with the instructions for use: evis lucera gif/cf/pcf type 260 series, chapter 3 preparation and inspection.Evis lucera gif/cf/pcf/sif type 260 series, chapter 3 cleaning, disinfection, and sterilization procedures.Olympus will continue to monitor the field performance of this device.
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