This is a supplemental report to provide additional information.The subject device was returned to olympus medical systems corp.(omsc) for evaluation.The lot number of the subject device is unknown.The subject device was checked and no abnormality such as damage or deformation was found.In addition, there was no abnormality in the connection with the washing machine and the scope.The program process was carried out after the connection, but abnormalities such as disassembling on the way or coming off from the connection point could not be confirmed.Omsc presumed that the program process had been operated in a state where the fixing by the rotating ring was insufficient in connection with the scope.Thus, it was not possible to withstand the liquid or air pressure during cleaning and disinfection, and it eventually came off.
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