This supplemental report was submitted to provide additional information to mdr.The original equipment manufacturer (oem), performed a device history record review and no abnormalities were noted.No device was returned to oem, however, an investigation was completed by the oem and determined that there is no manufacturing, material or processing related cause for this failure mode.The potential root cause is likely attribute to thermo-mechanical fatigue.Another possible cause is mechanical overload, impact, accidental dropping, etc.As a general note, cracks on the insulation material are mostly not visible, making visual inspection difficult.The dent on the tube and the faded marking can most likely be attributed to wear and tear.An investigation is ongoing with the oem regarding the insulation insert long term stability.Olympus will continue to monitor the field performance of this device.
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