On 6/13/16 integra investigation completed.Manufacture date unknown.Method: failure analysis, device history evaluation.Results: failure analysis - leksell rongeur returned in used condition, showing minimal wear and broken at the boxlock, upon visually inspecting the rongeur, it is noticed that there is blackening at the boxlock were broken.Without knowing how the rongeur was handled and maintained, the cause is undetermined.This type of damage to the instrument is usually the result from improper usage.The complaint report is confirmed.Device history review - dhr review.Nonconforming product report / nonconforming material report history: there is no applicable nonconforming product report / nonconforming material report history: variance authorization / deviation history: none.Engineering change order/manufacturing change order history: none.Corrective action preventive action history: none.Health hazard evaluation history: none.Conclusion: the root cause has not been identified as a workmanship or material deficiency.
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