The bipolar liner was returned for evaluation.The locking ring was disassembled from the liner.Both parts show no signs of damage, and the ring was able to be assembled with the liner.Dimensional measurements were conforming to print specifications where measured.Device history record review identified no deviations or anomalies in the manufacturing process.The reported device is used for treatment.Review of the complaint history identified no previous complaints for the part lot combination.It is stated that the device was never implanted, and was found to be disassembled upon opening the box.The device functioned as normal upon return, and was conforming to specifications.With the information provided, a root cause for the reported disassembly cannot be determined with certainty.
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