Method: device history review, complaint history review, risk assesment; result: device history review indicated all devices released into final stock met specifications.Device evaluation could not be performed as no items were returned.Complaint history review indicated there have been no other similar events for this reported lot.The event could not be confirmed nor the root cause determined because the devices were not returned for evaluation and/or insufficient information was provided for review.Per the ifu; "when hypersensitivity is suspected or proven, it is recommended that the tolerance of the skin to the materials that make up the implants be checked before they are implanted" and "pain, discomfort, or abnormal sensations due to the presence of the device" are known adverse effects and removal may also be recommended in "pain or abnormal sensations due to the presence of the implants.Infection or inflammatory reactions".Conclusion: the exact root cause could not be determined because the devices were not returned for evaluation and/or insufficient information was provided for review.
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