This event has been recorded by zimmer biomet under (b)(4).Review of the most recent repair record determined the machine head, lever, and ball plunger were damaged and the unit was out of calibration at the 0 right setting.The machine head, lever, and ball plunger were replaced and the unit was calibrated to resolved the reported issue.Review of the device history record identified no deviations or anomalies during manufacturing related to the reported event.Device is used for treatment.A definitive root cause cannot be determined.It was noted the device has not been returned regularly for recommended annual pm.The event is confirmed.
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