It was reported that during set up for a navio assisted tka surgery, the navio handpiece had a homing error.It was found that the assembly to hold the long attachment is disconnected.The procedure was completed, with a non-significant delay, using a s+n back-up device.Patient was not harmed as a consequence of this problem.
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H3, h6: the navio handpiece, part number pfsr110137, sn(b)(6), intended for use in treatment, was returned for evaluation.A relationship between the reported event and the device was established.The reported problem was visually confirmed.The snaplock is broken.The most likely cause of this event is mechanical wear failure.A review of manufacturing and records indicate the device met all specifications upon release into distribution.A complaint history review for similar reported/confirmed complaints found similar events.A historical escalation event review was completed.The review determined that prior escalation actions are applicable to the scope of this complaint, however, no further escalation action is required.The failure mode and associated risk have been anticipated within the risk file and the documented risk level is still adequate.As a part of corrective action a design change for a robust snap lock has been released.The failure mode will continue to be monitored through complaint investigation and trended through post market surveillance activities.
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