The mayfield skull clamp (a1059) was returned for evaluation: device history record (dhr) - the dhr was reviewed and no anomalies related to the reported failure was observed.Failure analysis - complaint device was returned and has been confirmed.Upon inspection it was discovered that the unit had rotational and lateral movement, however, residue and buildup was present/worn internal parts.General maintenance and cleaning was performed, and worn components replaced.Root cause - based on evaluation by integra service and repair, the root cause is most likely the need for routine preventive maintenance due to normal wear.No further investigation required based on the acceptability of risk and no adverse trends identified.This will be monitored and trended going forward.
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