Since the subject device was not returned to olympus medical systems corp.(omsc), it could not be investigated.Omsc reviewed the manufacturing history (dhr) of the subject device, and confirmed no irregularity.The exact cause of the reported event could not be conclusively determined.However, based on the report of olympus service operation repair center (sorc) that there was no damage in the instrument channel at the inspection, omsc surmised there was the possibility this phenomenon was attributed to the remaining of the foreign object after using the subject device due to insufficient user¿s reprocessing.If additional information becomes available, this report will be supplemented.
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