Patient information was not provided.Livanova (b)(4) manufactures the centrifugal pump 5 (cp5).The incident occurred in (b)(6).A livanova field service representative was dispatched to the facility to investigate.The service representative performed an intense testing but was not able to confirm or to reproduce the reported issue.The device worked according to the specifications and was returned into service.The customer reported further that a third party adapter was used which is not allowed according to the instruction for use (ifu).But as the issue could not be reproduced or confirmed, a root cause could not be identified.A review of the dhr did not identify any deviations or non-conformities relevant to the reported issue.Evaluated on site by livanova rep.
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