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Visual inspection was performed on the returned device.The reported balloon rupture and separation were confirmed.The reported difficulty removing the device could not be replicated in a testing environment due to the condition of the returned device.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other similar incidents and/or complaints from this lot.The investigation was unable to determine a conclusive cause for the reported balloon rupture.However, balloon material ruptures can be affected by numerous factors including, but not limited to, balloon damage during processing of the balloon material, materials, inflation technique, and interactions with other devices or lesion calcification.The investigation determined the reported difficulty removing the device from the introducer sheath, balloon separation, unexpected medical intervention, removal of foreign body and hospitalization appear to be related to circumstances of the procedure.In addition, the resistance noted during removal and separation of the balloon was likely the result of the ruptured balloon material catching on the anatomy and/or accessory device during removal.A conclusive cause for the reported patient effect of hemorrhage and the relationship to the device, if any, cannot be determined.There is no indication of a product quality issue with respect to design, manufacture or labeling of the device.
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