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This supplemental report is being submitted to provide additional information.Olympus medical systems corp.(omsc) reviewed, the manufacturing history (dhr) of the subject device and confirmed, no irregularity.[conclusion]: the root cause of the reported phenomenon could not be identified.[considerations]: based on the following information, omsc presumed, that the cause was physical stress/chemical stress/storage environment.-according to the inspection result of the subject device at olympus china, the coating on the insertion part was peeled off.And there were scratches on the insert part.-ifu states, cautions regarding physical stress, reprocess method and storage environment of device.-according to the former similar case, it had been presumed, that the cause was physical stress/chemical stress/storage environment.If additional information becomes available, this report will be supplemented.
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