Device investigation conclusions: based on the event description by the user, communication log, visual inspection and functional testing of the returned device, it can be concluded that: the device dhr is complete.The device lot was released for commercial and clinical use according to specifications.The handle mechanism works according to specifications.The nature of the inspace production process consists of manual folding process of each unit followed by protecting sheath assembly.Since the balloon is folded inside the protecting sheath it is necessarily that product is packed in the next step (blister sealing) with a balloon.It is not possible that a product was manufactured without a folded balloon.Possible scenario, based on the red safety button that was found opened, is that during the surgical procedure, premature plugging and/or disconnection of the balloon from the tube tip could occur by accidental premature rotation of the green knob during the device positioning, before moving the protecting sheath backwards and exposing the balloon.In the event that further information is received, the complaint will be reopened and the investigation will be updated with new results.The reported failure mode will be monitored for future reoccurrence.Therefore: the exact root cause cannot be determined.Manufacture date is not known.Correction: the correct fda registration number is 3016573902.
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