This mdr was generated under protocol (b)(4), as a result of warning letter cms # (b)(4).A product sample was received for evaluation.Visual and functional testing were performed.Unit was returned for evaluation of the failure and pictures provided by the customer.Unit returned was received inside of a plastic bag which was not the original package.Sample was submitted to leak test inspection per specification.Leak test inspection was performed on the returned device using equipment manometer.The device presented leakage.Based on the leak test results, the reported nonconformance was confirmed.The root cause of the reported was most likely the use of the adult nozzle on the extrusion machine, which causes buildup of resin, due to the larger design of the nozzle tip, generating embedded lines throughout sections of circuit rings, resulting in leakage failures.Containment actions were implemented after the manufacturing date of the lots reported by the customer.Containments: occurrence? implemented on august 10,2021.Nozzle cleaning at the beginning of shift and document in format fm-tijsop407-01 remove adult nozzle from process line.Segregate from manufacturing area.These actions have been followed through a quality alert detection? implemented on july 15,2021.All involved personnel were notified of the customer complaints, and instructed to notify quality representative if any product observed embedded lines throughout circuit rings was detected - quality alert.Corrective and preventive actions was established through investigation non conformance report (ncr).
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