The angled driver returned has a prong fractured off the collet.The device has a potential field age of over 6 years to date.The actual frequency of use is unknown.Manufacturing documentation was reviewed and found conforming to specifications at the time of manufacture.No additional complaints have been received against the manufacturing lot of the returned device.The device was used for treatment.It is unknown if excessive force was being used or if the device was being used to drill into hard bone.With the information provided, a definitive root cause cannot be determined, but it appears that the device has reached the end of its usable life, likely due to wear and tear from use.This mdr was identified during an internal retrospective review to meet reporting requirements and therefore is being filed retrospectively.
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