It was reported that before a tka procedure, the bone pin driver was found stripped and would not hold bone pins.No patient involved.All available information has been disclosed.If additional information should become available, a supplemental report will be submitted accordingly.
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The device was returned for evaluation.The exterior condition shows minor wear (scratches).The reported problem was confirmed.The driver has separated from the main body.A functional evaluation could not be performed due to broken/damaged parts.The driver has separated from the main body.A review of manufacturing records found no related non-conformances or anomalies associated with this device during production.Therefore the device met all specifications upon release into distribution.A complaint history review for similar reported/confirmed complaints associated with the pin driver and failure mode(s) identified similar events.The most likely cause of this event is mechanical component failure and breakdown/defect of the weld.Navio user manual 500197 rev b indicates "using the bone pin driver and a surgical drill: 5.Drill the first bone pin through the tissue protector, perpendicular to the surface of the bone, taking care to only engage, and not perforate, the opposing cortex." drilling perpendicular is recommended when using the pin driver.No further containment or corrective actions are recommended at this time.
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