This supplemental report is being submitted to provide the results of 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 2 years since the subject device was manufactured.The customer's allegation about the monochrome screen was confirmed.Based on the results of the investigation, it is likely that due to the stress of repeated use, external factors, or handling of the device, the image sensor unit was damaged, such as disconnection, or a part mounted on the electrical circuit board, such as integrated circuit chips and capacitors was broken, which may have resulted in the subject event.However, a definitive root cause could not be determined.The following is included in the instructions for use (ifu): the instructions, operation manual, chapter 3 ¿preparation and inspection¿, section 3.8 ¿inspection of the endoscopic system¿ describes how to inspect for the subject event.Olympus will continue to monitor field performance for this device.
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