Manufacturing review: the device history records have been reviewed and this lot met all release criteria.There was nothing found to indicate there was a manufacturing related cause for this event.This is the only complaint reported to date for this lot number and failure mode.Investigation results: the device was returned for evaluation.A visual inspection found peeled pebax on the distal cone of the balloon.The device was inflated, and a rupture was noted on the distal cone of the balloon, at the location of the peeling pebax.Therefore, the investigation is confirmed for a rupture and for peeling pebax.It is likely the user perceived the rupture as a leak.Because the peeling pebax was noted at the location of the rupture, it is unknown if the rupture caused or contributed to the peeling pebax.The definitive root cause for the identified issues could not be determined based on the available information.Labeling review: the review of the ifu (instructions for use), indications, warnings, precautions, cautions, possible complications, and contraindications showed that the product labeling is adequate.
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