(b)(4).Device evaluated by mfr: the advancer was returned for analysis; however, the brake button was not returned.A microscopic and visual inspection of the brake button and advancer were performed.The advancer knob was received tightened in a backward position.The housing was opened to see if the brake was inside, but no brake was found.The manufacturing batch record review confirmed that the device met all material, assembly and performance specifications.The most probable root cause is considered handling damage as the event occurred without direct patient contact.(b)(4).
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It was reported that the brake defeat malfunctioned.A rotalink¿ advancer was selected for use.During the procedure, it was noted that the brake defeat button was damaged.After connecting the device with the gas, the brake defeat burst.The procedure was completed with another of the same device.No patient complications were reported and the patient's status was stable.
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