H10: the actual device was not provided for evaluation, however, a picture was provided.Visual inspection verified that an alarm occurred and there was foam observed going up the return line and wetting the return barrier.The event history log review confirmed the occurrence of clotting filter alarms during both events.The system showed almost a nonstop generation of the negative pressure extreme alarm, indicating there may be something with the catheter in use that could be contributing to this.This alarm stops the blood pump, and any amount of time where the blood is sitting still, will increase clotting.The reported condition was verified.The device performed as expected, however, the cause of the condition could not be determined.A device history review revealed no issues that could have caused or contributed to the reported event.Should additional relevant information become available, a supplemental report will be submitted.
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