This supplemental report is being submitted to provide additional information.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 reported information, it is presumed that as follows.-it was confirmed that there was a hole in the instrument channel due to the endotherapy accessory and that an air leak had occurred.-it was confirmed that the bending section was damaged and an air leak occurred.From the above, it is presumed that the reported phenomenon that foreign matter came out from the instrument channel occurred because the watertightness could not be maintained and normal cleaning could not be performed.If additional information becomes available, this report will be supplemented.
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