(b)(4).A sensation large oval med stiff snare was received for analysis.Visual inspection of the returned device revealed that the peek tubing was bent and the working length and wire were kinked.Additionally, the loop was broken with evidence of blackness.Functional inspection was not possible due to the condition of the device.No other problems were noted.The reported event of handle break was confirmed.Upon product analysis it was observed that the working length, peek tubing, and wire were kinked.This likely happened due to an excessive force being applied over the device.Most likely procedural factors as handling of the device, the technique used by the physician during initial use, set-up, power-up, or shortly thereafter could have affected its performance and its intended purpose, leading to the reported event.Finally, the device had the loop broken with evidence of blackness.It's possible that energy was applied over the device, however, it was not possible to determine why this part was broken.The product record review confirmed that this was not a new failure type and the risk was anticipated.There was no evidence of a manufacturing problem, design or user problem which could have caused the complaint.Based on the information available and the returned device analysis, the most probable root cause for the reported events is adverse event related to procedure.This is defined as the adverse event occurred during the procedure and the device had no influence on event.A review of the device history record (dhr) was performed and confirmed that this device met all material, assembly and performance specifications.
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