This supplemental report is being submitted to provide additional information.The exact cause of the reported event could not be conclusively determined, because the device has not been returned to olympus medical systems corp.(omsc).More than 6 years have passed since the device was delivered.The video connector socket may have become loose due to wear of the video connector socket due to repeated use for a long period of time, or due to excessive force applied when installing or removing the video connector.In addition, it is possible that the endoscopic image was not displayed due to the above causes, corrosion of the video connector socket terminal, and aging deterioration of the printed circuit board.The instruction manual provides preventive measures against reported loosening of the video connector socket.Device history record (dhr) review indicates that the product was manufactured and tested in accordance with all applicable procedures and met all final product release criteria.If additional information becomes available, this report will be supplemented.
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