Investigation results: visual investigation: the investigation was carried out visually and microscopically.No deviations could be found on the valve housing, but a fragment of the sealing unit was provided separately.After disassembling the valve, the broken part was found.The damage was most likely caused by a sharp or pointed instrument when inserted into the trocar.The area of breakage did not show any unusual structural change, no pore inclusions or foreign bodies could be found.Batch history review: the device quality and manufacturing history records have been checked for the available lot number and were found to be according to our specifications valid at the time of production.Review of the complaint history revealed that no similar complaints have been filed against products from this batch number.The review of risk assessment revealed that the overall risk level (severity x probability of occurrence) according to din en iso 14971 is still acceptable.Conclusion and measures / preventive measures: based upon the investigation results a clear root cause conclusion cannot be drawn.There is no indication for a material-, manufacturing- or design-related failure.Based upon the investigations results there is capa is not necessary.
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