Sorin group (b)(4) manufactures the s5 gas blender.The incident occurred in (b)(6).This medwatch report is filed on behalf of sorin group (b)(4).Sorin group received a report that the s5 gas blender was not delivering air/o2 to the oxygenator during a procedure.There was no report of patient injury.A sorin group service representative was dispatched to the facility to investigate.During initial testing, the service representative was able to reproduce the reported issue.The o2 hose was disconnected and cleaned and appeared to be operating correctly, but the unit still displayed the fault.The gas blender was returned to sorin group deutschland for evaluation.An evaluation of the returned gas blender was performed.During the evaluation, the reported issue was reproduced and the root cause of the failure was found to be a defective bridge (awm 5101 va s3).Additionally, a defective coupling and a defective plug were discovered during the evaluation.A review of the dhr could not identify any concessions, deviations or non-conformities relevant to the reported failure.This issue will be monitored for trends and if a trend is identified, corrective action will be recommended.
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