H3, h6: the device (pn: 101092, sn: (b)(6), used in treatment, was returned for investigation.Dhr review found that no conditions that could contribute to the reported event were found.The reported product met manufacturing specifications prior to being released for distribution.A complaint history review found similar reports, this issue will continue to be monitored.This failure mode is identified in the risk profile.The navio user's manual (500196) navio surgical technique guide (500197) provide instructions for drill setup for the bur, troubleshooting, and usage.We were able to confirm if there was a relationship established between the reported event and the device.The reported problem was not confirmed visually, but functional evaluation found that the when a bur was inserted into the device, the bur would unseat in the locking mechanism and disengage.This is indicative of damage to the locking mechanism, which is typically caused by wear over time.Based on the investigation, no corrections or corrective actions required at this time.The medical evaluation found that per complaint details, the device (anspach drill/bur) malfunctioned during bone removal of a ukr.It was communicated that the navio¿ was abandoned and the surgery was completed using conventional instruments with a delay of approximately 15 minutes.Per the field report, no patient harm or additional complications were reported.Based on this information, patient impact beyond the reported modified procedure and the 15-minute surgical delay would not be anticipated as the case was reportedly completed with conventional instrumentation.No further medical assessment is warranted at this time.
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