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H10: device evaluation: the device was returned for investigation.A visual inspection and functional test were performed.Photos received: two (2) photos were included in agile attachments for evaluation.Results: line occluded was detected in photo 1.Sample returned: one (1) sample was returned for evaluation p/n 100/136/050; the sample was received in used conditions without its original package.Visual inspection: the returned sample was visually inspected at 12? to 16? and normal conditions of illumination.Results: line occluded was detected.Functional testing: the returned sample was inflated using a syringe results: cuff won?t inflate; the complaint was confirmed.Leak testing: the sample returned was connected to leak tester machine [cal id: 8.1597, due date: march,2022] to identify any occlusion.Results: occlusion was detected.Based on the analysis conducted in the sample provided, cuff inflation/deflation failure mode was confirmed.Therefore, according to on pfmea (rmp 1051) the occurrence of this failure condition could be caused by: mp tmfl-tj120? tracheal manual flow line ? bell-out and leak test? rev 107; section 2.5 not followed properly.The cause of the reported problem was traced to the manufacturing process.Any relevant dmrs, ncrs, ets, etc.: there were no issues, nonconformance reported during the manufacture of this lot.
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