This report is being supplemented to provide additional information based on the legal manufacturer's final investigation, and to correct information found in the initial report.The following section was corrected: h4.Based on the results of the legal manufacturer's investigation, the suggested event ¿white contamination in a/w channel¿ was confirmed, and the specifications and functions were not satisfied.The foreign material was found to be infacol (simethicone).It was likely that foreign material remained due to deviation from ifu in user handling.However, it was confirmed that by the reports: "962-0125, 962-0124, 063-1903, and 066-3255" that performance of reprocessing on the device is secured by reprocessing in accordance with ifu.(cleaning/ disinfection/ sterilization).There was no physical damage at the point where foreign material was detected.A review of the device history record found no deviations that could have caused or contributed to the reported issue.It has been over 3 years since the subject device was manufactured.The suggested event is detectable and preventable by handling the device in accordance with the following ifu.Gif/cf/pcf-290 series operation manual includes the detection way in chapter 3 preparation and inspection.Gif/cf/pcf-290 series operation manual includes the preventive measures in 3.8 inspection of the endoscopic system: nothing other than sterile water should be used for air/water feeding.No additives should be put into the sterile water.Non-sterile water may cause patient cross-contamination and or infection.Olympus will continue to monitor field performance for this device.
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