On 2/3/16 integra investigation completed.Method: failure analysis, device history evaluation.Results: failure analysis - scissors were returned in used condition, showing a green tape marking.The returned scissor showing wear, staining and a broken tip.Upon visually inspecting the instrument, it is noticed that there is staining at the hinge area; and the tip is broken.It is also noticed that there is black staining where the breakage is.This is the result from detergents used to clean the instrument.The black acid staining can be caused by low ph (less than six) during autoclaving.This can weaken the metal causing breakage.This type of damage is typically the result of improper processing.Condition of the instrument reveals improper care.The complaint report is confirmed; damaged worn.Device history evaluation - dhr review was completed with all history available.Nonconforming product report / nonconforming material report history: none.Variance authorization / deviation history: there is no applicable variance authorization / deviation history.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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