This supplemental report is being submitted to provide the results of the legal manufacturer's final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.It has been over 6 years since the subject device was manufactured.Based on the results of the investigation, it is likely the event occurred due to stress applied to bending section during device handling.The event can be detected by following the instructions for use: user can detect the suggested event by handling device in accordance with the following ifu.Operation manual_ inspection of the endoscope inspect the external surface of the entire insertion section including the bending section and the distal end for any irregularities such as dents, bulges, swelling, scratches, peeling of coating, holes, sagging, transformation, bends, adhesion of foreign bodies, missing parts, and protruding objects.The event can be prevented by following the instructions for use: operartion manual_ operation_ precautions_ caution - do not operate the angulation control lever with excessive force in a narrow space to the opposite direction from the bending direction while the distal end of the endoscope is not moved.The bending section may be damaged.Check the tip position of the endoscope and the shape of the bending section using fluoroscopy, etc.Do not insert the insertion tube with excessive force and twist.- do not insert the insertion tube with excessive force into the ureter or calix.The bending section may be damaged.Olympus will continue to monitor field performance for this device.
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