The device intended for use in treatment was returned for evaluation.Nothing was identified visually that contributed to the reported problem.Functional evaluation was performed.The motor gear in the handpiece could not be manually turned.The handpiece was sterilized prior to the handpiece characterization test because the heat can potentially bind the motor gear.The handpiece characterization test was conducted with a torque (t1) value of 58.The test was conducted twice more, with torque values of 30 and 20 respectively.This indicates early signs of motor failure.A review of manufacturing records indicate the device met all specifications upon release into distribution.A review of service records indicate the handpiece motor met specifications upon release into distribution.A complaint history review for similar reported/confirmed complaints associated with the handpiece and failure mode(s) "jamming/seizing" identified similar events.The most likely cause of this event is the mechanical failure of the motor.Further investigation into the reported failure is being conducting to determine if additional actions are required.
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