This supplemental report is being submitted to provide the device evaluation result.The subject device and the fragment were returned to olympus medical systems corp.(omsc) for evaluation.The evaluation of the subject device by omsc confirmed following.- as reported from the user facility, two parts of resin outside the insertion tube of the subject device were peeled off.Part1: the part of the coating was peeling off.There were tears and cracks on the insertion tube between 65 mm to 90 mm from the distal end.Part2: the part of the coating was peeling off.There were tears and scratches on the insertion tube between 137 mm to 158 mm from the distal end.- the fragment surface fell off into the patient was a shape split in the insertion/removal direction.There was no chemical damage trace on the resin.- the part of the coating over the insertion tube was peeling off.- the part of the index of length disappeared.- there were kinked on the insertion tube.- there were chips on the adhesive of bending rubber.- there were cuts on the rubber of the bending section.The above damages of the subject device could be caused due to physical stress.It is considered that the fragments could fall off due to physical stress applied to the insertion tube of the subject device.The operation manual of the subject device has already described as follows; -visually inspect the surface of the insertion tube for dents, bulges, swelling, peeling or other irregularities.
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