The device used for treatment was returned for evaluation.
The reported problem was visually confirmed, the snaplock nut is broken.
Although the reported problem was visually confirmed, a functional evaluation could not be performed due to the broken snap lock nut.
A review of manufacturing and service records indicate the device met all 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 snap lock.
As a part of corrective actions, a more robust design of the snap lock has been released.
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