The reported event could be confirmed, since the device was returned, and matches the alleged failure.Device inspection revealed the following: the received jungbluth clamp shows discoloration throughout the surface which is from usage and regular reprocessing cycles.We can see that the cap of the hinge pin is missing, and the hinge pin is broken inside the mating part which was not returned for the investigation.From the microscopic view of the broken area, we can see a clear brittle shiny surface which was due to the application of excessive torsional load.A review of the device history for the reported lot did not indicate any abnormalities.No corrective actions are required at this time.A review of the labeling did not indicate any abnormalities.No indications of material, manufacturing or design related problems were found during the investigation.Based on the investigation, the root cause was attributed to user-related as we can see clear sign of excessive torsional load.If any additional information is provided, the investigation will be reassessed.
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