This report has been identified as b.Braun medical inc.Internal report number (b)(4).A review of the logs confirmed the user experienced 4-6 occlusions on macro 1 before opening the sensor door, opening the platens and eventually switching sets.Given that a transfer set of the same lot then performed without issue, the first set was likely not installed fully.Without extra occlusion information provided in software rev k, it is impossible to know why the occlusion alerts were occurring.One (1) used set, with packaging, was returned for evaluation.Visual examination of the set noted no visual defects.The set was occlusion tested on all of the lines with emphasis on lines 1, 2, 24, and 26 with passing results.Visual examination of a retained transfer set noted no visual defects.The retained unit was occlusion tested with passing results.Review of the discrepancy management system (dsms) database performed for the reported transfer set lot number revealed no abnormalities or non-conformances noted during in process or final product inspection.Based on the results of the investigation this complaint is not confirmed for valve misalignment.B.Braun will continue to investigate, trend, and monitor all complaints of this nature.If additional pertinent information becomes available a follow-up report will be filed.
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