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A visual inspection, scanning electron microscopy (sem) analysis, and review of the angiographic images was performed.The reported material rupture and material separation was confirmed.Production record and corrective and preventative actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a query of the complaint handling database for the reported lot revealed there is no indication of a lot specific issue.Sem analysis was performed to further analyze the material rupture.The results determined that the proximal balloon separation may be attributed to mechanical damage to the outer surface.Multiple areas of mechanical damage and tearing were documented at and adjacent to the separated edge of the balloon.As the distal half of the separation was not submitted, it could not be determined whether the rupture extended in the longitudinal direction or had an additional site of failure initiation.An abbott vascular medical affairs expert reviewed the details of the case and the angiographic images that were provided from the account.The provided media (angio jpeg images) partially confirms the malfunction described in the complaint summary.The 7x100mm armada balloon catheter used for post dilatation of a covered stent ruptured and fragments of balloon embolized.The results indicated that a probable cause cannot be determined from the provided media.Based on the reported information and the observations from the returned analysis, the reported difficulties appear to be related to circumstances of the procedure.There was no leak noted during preparation, suggesting that the damage was not pre-existing.In this case, it is likely that the surface of the balloon material became damaged due to interaction with the covered stent and/or the highly stenosed lesion resulting in the noted mechanical damage and caused the balloon to rupture during inflation.The material separation resulting in embolization and unexpected medical intervention to embed the separated balloon fragments with four covered stents was likely due to the ruptured balloon material catching on the covered stent or highly stenosed lesion during withdrawal resulting in separation.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.H6 correction: medical device problem code 1562 added.
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