Model Number ROB10013 |
Device Problems
Intermittent Continuity (1121); Connection Problem (2900); Noise, Audible (3273); Unintended Application Program Shut Down (4032)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 10/18/2022 |
Event Type
malfunction
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Manufacturer Narrative
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Internal complaint reference: (b)(4).
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Event Description
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It was reported that, during a cori assisted tka procedure, upon starting to cut on distal femur, a ¿system time out error: the robotic drill has been deactivated¿ occurred.After clearing the error, the real intelligence robotic drill was shaking and making a high-pitched noise, even though the foot pedal was not being pressed.When backing out of the cut screen, or touching the refine button, the noise would stop.Then, it was attempted to swap out the attachment, however upon loading burr, a ¿robotic drill critical error¿ was received, case was quit out and ¿an internal error: application expectedly exited¿ was received.Surgery was resumed after a non significant delay, with a back up device.Patient was not harmed.In addition, both before and after the case, the drill passed the kpc test, however it was noticed that when manually twisting burr, it felt jagged.
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Manufacturer Narrative
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The real intelligence robotic drill, part # rob10013, serial # (b)(6), used for treatment, was returned for evaluation.Nothing was identified visually that contributed to the reported problem.A functional evaluation was performed.No issues were identified during functional evaluation, device performed as expected.A log file review was performed.The reported problem was confirmed.Review of the logs from 2022-10-18 shows that warnings for "system time out" were linked to an exposure motor stall error.A possible cause may have been that debris buildup led to the bur getting stuck, this may have resulted in a drill motor stall which created the system time out errors.Additionally, it may have contributed to the jagged feeling experienced when manually twisting the bur.Another possible cause may have been excessive torque was applied to the drill when burring, this would have resulted in the drill motor stall.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 found similar events.A historical escalation event review was completed.A review of prior escalation actions found no actions applicable to the scope of the reported complaint.The failure mode and associated risk have been anticipated within the risk file and the documented risk level is still adequate.Although no further containment or corrective action is recommended or required at this time, the failure mode will continue to be closely monitored through complaint investigation and trended through post market surveillance activities.
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Manufacturer Narrative
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The real intelligence robotic drill, part # rob10013, serial # (b)(6), used for treatment, was returned for evaluation.Nothing was identified visually that contributed to the reported problem.A functional evaluation was performed.No issues were identified during functional evaluation, device performed as expected.A log file review was performed.The reported problem was confirmed.Review of the logs from 2022-10-18 shows that warnings for "system time out" were linked to an exposure motor stall error.The most likely cause of this event is associated with a failure of the drill exposure motor due to the thermo-mechanical stress induced within the motor at the encoder and electrical noise on the console error status inputs to the drill exposure motor encoder.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 found similar events.We have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.A historical review concluded that the lot, serial number or part number reported in this event is related to a corrective/preventive action already implemented.The failure mode and associated risk have been anticipated within the risk file and the documented risk level is still adequate.Continuous improvements have been made to the cori robotic drill and manufacturing processes to reduce drill disconnection error messages.These improvements consisted of: 1.A hardware update to the cori console to reduce noise on the internal electronics.2.An update to the cori system¿s software and firmware to improve the user experience when error messages are displayed, and 3.A hardware update to the cori drill to reduce mechanical stress on drill exposure the motor.The first two improvements are fully deployed.The third improvement is being deployed for new orders and as drills are returned for routine servicing.Also, smith+nephew is voluntarily performing a recall/field notification for the cori real intelligence robotic drill.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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Search Alerts/Recalls
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