Upon return, visual inspection of the returned product confirmed the rod was broken at a solid section at the distal end of the actuator, so the reported failure mode was confirmed.Also, the patient's x-ray images confirmed the reported failure.The type of breakage observed can result from excess stress that was applied as a result of the patient's daily activities and unique anatomical structure.The work order was reviewed and confirmed the device passed all inspections per the acceptance tests.The iqc inspection data for the lot of end cap was reviewed and confirmed the part met design specifications per the engineering drawings.Because the rod met manufacturing specifications assembly, the breakage did not relate to any manufacturing process or material issues.
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