This report is being supplemented to provide additional information based on 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.Based on the results of the investigation, the root cause of the event was unable to be identified.The device was not returned to olympus; however, contents of the report from the customer deviates from the contents of the instruction manual.Therefore, it is likely that the phenomenon occurred due to handling of the user.The event can be detected/prevented by following the instructions for use which state: "warnng: do not store the sterile packages containing the instruments in places where they could become damaged, wet, or improperly sealed.Otherwise, the sterility of the instruments may be compromised and pose an infection-control risk or cause tissue irritation.Do not store the ultrasonic probe in the shipping box.Use the box only for shipping the instrument.Routine storage in a humid, nonventilated environment, such as the shipping box, may present an infection-control risk.Caution: the storage cabinet must be clean, dry, well ventilated, and maintained at ambient temperature.Storing the ultrasonic probe in direct sunlight, at high temperatures, in high humidity, or exposed to x-rays may damage the components or present an infection-control risk.Do not coil the ultrasonic probe¿s insertion tube with a diameter of less than 20 cm.Instrument damage such as image flow and impeded or irregular rotation can result.Do not store the ultrasonic probe with the distal end pointing upward.Air bubbles inside the insertion tube will gather at the distal end and result in reduced performance.".Olympus will continue to monitor field performance for this device.
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