H6: medical device problem code - 1494 - indication for use.Visual and functional inspections were performed on the returned device.The reported leak was confirmed.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history identified no other incidents and/or complaints from this lot.It was reported that the procedure was performed to treat a left arterial flutter.It should be noted the coronary dilatation catheters, mini trek ii over the wire (otw), global, instruction for use (ifu) states: the mini trek ii otw coronary dilatation catheter is indicated for: balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis, for the purpose of improving myocardial perfusion, balloon dilatation of a coronary artery occlusion, for the purpose of restoring coronary flow in patients with st-segment elevation myocardial infarction, balloon dilatation of a stent after implantation, balloon dilatation of de novo chronic total coronary occlusions.In this case, it is unknown if the reported ifu violation caused or contributed to the reported complaint.The investigation was unbale to determine a conclusive cause for the reported leak.There was no damage noted to the balloon catheter prior to use or leak noted during preparation, which suggests a product quality issue did not contribute to the reported difficulties.Return analysis noted flaps of peeled balloon material in the fold at the leak area in the balloon and additional areas of peeling/scratched material near the noted balloon flap rupture.In this case, it is likely that during preparation for use, the coating on the balloon was not adequately activated in saline such that as the balloon was inflated, the balloon material peeled (noted flap), which resulted in the reported leak and noted balloon rupture; however, since limited information was reported, a conclusive cause cannot be determined.There is no indication of a product quality issue with respect to design, manufacture or labeling of the device.B5: event description.B6 - relevant test/laboratory data.B7 - other relevant history.H6: health effect - impact code 2645 removed.
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