The disposable perforator (261221) was returned for evaluation.Device history record (dhr) - the batch record was reviewed for any anomalies or ncs related to the finished lot (5441581), and it is noted that no anomalies occurred during the manufacturing process.Failure analysis: the perforator unit was inspected using the unaided eye.The unit was received disassembled and could not be tested as is.There were visible tool markings on the outer drill noted at the time of the visual inspection."ifu" testing procedure was performed with no observed anomalies (after reassembly).Functional testing was performed using the same protocol it underwent at finished goods testing prior to release.The unit was found to perform as intended and fulfilled the acceptance criteria.In the failure analysis that was performed, the returned unit was found to work as intended, and met all acceptance criteria.The complaint could not be verified through failure analysis.Root cause: the root cause is undetermined and was unable to be confirmed in the complaint evaluation.A review of the device history record and trending were performed as part of the evaluation.Proper finished goods testing was performed prior to release as indicated in the device history record.Product was received for analysis and the investigation could not confirm the complaint.The risk remains acceptable per the risk analysis.
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