This supplemental report is being submitted to provide additional information.The subject device was returned to olympus medical systems corp.(omsc) for evaluation, but was returned to olympus medical systems india private limited (omsi).Omsi found a perforation in the bending section during incoming inspection.The subject device failed air leak test due to the perforation.Omsc reviewed the manufacturing history (dhr) of the subject device and confirmed no irregularity.There is no service record for the subject device in the last four years.The exact cause of the reported phenomena could not be conclusively determined.However, based upon the inspection, the reported phenomenon could have been attributed to fluid ingress through around the light guide lens due to physical stress, chemical stress, poor storage condition such as direct sun light, high temperature, x-ray, and ultra violet ray, or aging deterioration.
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