This event has been recorded by zimmer biomet under (b)(4).Review of the most recent repair record determined the motor speeds were not stable, the machined head and reciprocating arm were worn/damaged, the bearings, e-ring, and hinge gasket were missing, the device was out of calibration, and the control bar was out of position.The device and control bar position were re-calibrated.The motor, machined head, pin, reciprocating arm, hinge gasket, and various bearings and rings were replaced and resolved the reported issue.Device is used for treatment.A definitive root cause cannot be determined.The event is confirmed.
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