This supplemental report is being submitted to provide additional information.The subject device has not been returned to olympus medical systems corp.(omsc) for evaluation.Omsc reviewed the manufacturing history (dhr) of the subject device and confirmed no irregularity.Omsc checked service records and found that a regular maintenance was conducted for the device on september 5, 2020.Omsc confirmed that the instruction manual describes about the phenomenon as follows in the chapter 8 troubleshooting and repair.Connect the drain connector as described in to section 3.9, ¿checking the disinfectant solution concentration level¿ on page 52, push the valve on the connector several times so that the material stuck in the port is removed.If leakage is still detected, attach the rubber cap to the disinfectant solution drain port and contact olympus.The exact cause of the reported phenomenon could not be conclusively determined.However, there is a possibility that the reported phenomenon was attributed to device handling of the user.
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