It was reported that during a cori-assisted tka, while cutting the distal femur, the real intelligence robotic drill slowly began to die and burr slowly stopped spinning.The motor started to slow down and no longer work.Surgery was performed after a delay greater than 30 min, with a back-up device.No patient complications were reported.
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H3, h6: the real intelligence robotic drill, part number rob10013, serial number sn(b)(6), used for treatment was returned for evaluation.The reported problem could not be confirmed with a visual inspection.The reported problem was confirmed with a functional evaluation.During kpc and a case, the bur would not spin.The cable passed testing.The exposure motor passed testing.Disassembly revealed a broken bearing within the carriage and a broken spline shaft.The drill then passed kpc and a case with a replacement carriage and drill motor.A complaint history review for similar reported/confirmed complaints has identified prior events.A review of manufacturing records indicate the device met all specifications upon release into distribution.The failure mode and associated risk have been anticipated within the risk file and the documented risk level is still adequate.A historical review concluded that no prior escalation actions are applicable to the scope of the reported complaint.We have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.The most likely cause of this event is associated with wear and tear of carriage bearings.Based on the investigation, no containment or corrective action is recommended or required at this time.Should any additional information be received the complaint will be reopened.The failure mode will continue to be closely monitored through complaint investigation and trended through post market surveillance activities.
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