The subject device was not returned to olympus medical systems corp.(omsc), therefore omsc cannot investigate the subject device.Omsc reviewed the manufacturing history (dhr) of the subject device and confirmed no irregularity.When omsc checked the use log of the subject device, there was no error about the concentration of the disinfectant solution.The exact cause of the reported event could not be conclusively determined.If additional information becomes available, this report will be supplemented.
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