This report has been identified as b.Braun medical inc.Internal report number (b)(4).Failure analysis and investigation results did not confirm the reported issue.Upon receipt the actual pump involved was visually and functionally inspected.Three (3) infusions were run where a 0.4ml air bubble was introduced into the line, and in all three (3) tests the pump alarmed as intended.The air sensor was tested for air in tubing and fluid in tubing, and all of the measurements were within specification.The device history logs were reviewed and showed that an infusion was started at 11:52 pm, the pump alarmed for air in line at 11:53 pm and this was followed by a 6 second purge.The infusion was started again at 11:53 pm, and at 11:54 pm the pump alarmed for air in line which was followed by 3 purges that lasted for a total of 10 seconds.The pump operated as intended and the reported failure could not be reproduced.Based on the results of the investigation, no conclusions can be made regarding the cause of the reported event.If additional information becomes available, a follow up report will be submitted.
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