(b)(4).A follow-up medwatch will be submitted when additional information becomes available.Reference exemption # e2018002.(b)(4).Investigation: the arterial filter quart has been returned for further investigation at maquet laboratory.According to investigation report, dated on 2019-01-28, the leakage of the quart could be confirmed.During leak test it has been found a leakage between cover and housing, near the bypass-tap (white) of the quart.Thus the failure could be confirmed.Most probable root cause could be determined as bad welding between the cover and the housing.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.Correction: according to complaint report, dated on (b)(6) 2018, the issue has been detected prior to use.No patient involvement.The set was replaced before patient treatment.Corrective action: since the reported failure did not contribute to a death or serious injury no corrective action is needed.In addition at this time it cannot be concluded that this is a systemic error.No corrective action is needed.
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