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This mdr was generated under protocol (b)(4), as a result of warning letter cms# (b)(4).A device history record (dhr) review was conducted which indicated all inspections were completed and no issues were noted during manufacture.A product sample was received for evaluation.Visual and functional testing were performed.No images were provided.Three (3) samples were received without their original packaging inside a ziploc bag, in used conditions and with their certificate of safe handling.Visual inspection was performed at 12 inches under normal lighting to received units, in order to detect any damage on the cuff, airline or pilot balloon.No damaged could be detected.Functional test: samples were filled with 5 cubic centime (cc) of air according to procedures in order to see if there was any functional problem.When inflated the sample 1 with air, the pilot balloon inflated completely.Sample 1: after the whole cuff inflated, the technician deflated and inflated 4 times, all the times the cuff inflated completely.Therefore can conclude failure mode reported wasn?t confirmed.Sample 2: when inflated the sample 2 with air, the pilot balloon inflated completely.After the whole cuff inflated, the technician deflated and inflated 4 times, all the times the cuff inflated completely.Therefore, can conclude failure mode reported wasn't confirmed.Sample 3: when inflated the sample 1 with air, the pilot balloon inflated but all air was stuck it.According to the information for use, the technician manipulated the pilot balloon and the cuff inflated but only one side, the technician manipulated the cuff and the whole cuff inflated.After the whole cuff inflated, the technician deflated and inflated 4 times, all the times the cuff inflated completely.Therefore, can conclude failure mode reported wasn?t confirmed.The samples were tested on leak test.The test was performed under water as per procedures the technician inflated the unit, and visually inspected the sample for 10 seconds, did not observe any leakage.Then submerged the units under water, did not observe any leakage.The technician did not detect leaks during the test.The complaint is not confirmed.The root cause of the reported issue was not confirmed.No corrective actions were taken since the complaint was not confirmed.
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