To get a root cause , a clinical assessment has been prepared by a clinical application manager.Conclusion: sufficient anticoagulation control (act, ptt) is not supported by the questionnaire.Flow calibration of the flow measurement was not done.No sensor intervention was enabled.Air entered the perfusion system.The root cause of the incident is unknown by clinical side because of insufficient information.Thus the failure could not be confirmed.The data is also being handled through a designated maquet cardiopulmonary trending and applicable investigation process.Due to this no further investigation initiations will be completed at this time.Since the device had no failure no corrective action is needed.In addition at this time it cannot be concluded that it is a systemic error.No corrective action is needed.
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