It was reported that before burring, a handpiece error warning came up and it was required to recalibrate the handpiece.Upon recalibration, the handpiece was giving the error 3 more times.And when trying to recalibrate the handpiece, error kept showing that the handpiece was not connected.Case was completed with same handpiece.No injuries involved and delay of less than 30min was reported.
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The navio handpiece, used in treatment, was returned for further evaluation and a visual and functional inspection was performed, which confirmed the reported event.Visual inspection did not find any rips or tears in the cable of the handpiece, especially at the handpiece end by the strain relief.The strain relief was attached to the handpiece and not pulled away.There were no bent or damaged pins in the connector.The exterior condition shows¿moderate wear (scratches, discoloration).It was noted that the snap lock is the older style without a pin.During functional evaluation, the handpiece was connected to a system and originally connected without issue.A case was created and at the ¿handpiece connection¿ screen, the cable was bent so that it showed as disconnected.A review of the log files on the system showed an over-current error.Over-current errors indicate that the internal wiring at the handpiece end has come apart in the cable, causing a short in the wiring and an over-current error.A device history record review found no conditions which could contribute to the reported event and the device met all manufacturing specifications during the release for distribution.A complaint history review found similar reports and this issue will continue to be monitored.The root cause was found to be an electrical component failure.These results are indicative of a known issue and corrective action has been requested for this issue.
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