It was reported that blood was leaking from the bottom (housing) of the oxygenator.The affected oxygenator was investigated in the getinge laboratory on 2021-06-10.The tightness test of the water and the blood side showed no abnormalities.No leakage could be detected.After drying the oxygenator again, the oxygenator was flowed through in another test setup for 28 hours.No leakage could be detected hereby.However, when some air pressure was applied to the gas side, it was observed that 4 drops of water were blown out of the gas outlet.The most probable root cause could be determined as a leakage between the blood and gas side.According to our risk management file (dms#(b)(4)) this can be caused by the following: -broken or distorted fibers the production records of the affected oxygenator (dms# (b)(4)) were reviewed on 2021-04-16.According to the final test results, the oxygenator with the serial# (b)(6) passed the tests as per specifications.Production related influences are unlikely.Based on these investigation results the reported failure "leakage" could be confirmed.The occurrence rate was calculated for the reported issue and it was determined that this is not a systemic issue.Therefore, no remedial action is required.The occurrence rate related to the reported issue is currently being monitored as part of maquet cardiopulmonary¿s trending program and additional investigations or corrections will be implemented in case of adverse trending.
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