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It was reported that the procedure was performed to treat a heavy calcified, mildly tortuous, 50% stenosed anterior tibial artery.A 2.5x20mm armada 14 percutaneous transluminal angioplasty (pta) catheter was unpacked, and it was noted that the shaft was bent.The pta faced resistance during advancement and withdrawal over a command es guide wire, and some force was applied.A 3x40mm armada 14 pta and whisper es guide wire were used to successfully complete the procedure.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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Vsual, dimensional and functional inspections were performed on the returned device.The reported difficulty to advance and difficulty to remove were unable to be confirmed and a proxy guide wire was advanced and retracted without any resistance noted.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 incidents and/or complaints reported from this lot.It should be noted that the instructions for use (ifu), pta, catheter, armada 14, global, ce, ireland, 7th bullet point states: carefully inspect the catheter prior to use to verify that it has not been damaged during shipment and that its size, shape and condition are suitable for the procedure for which it is to be used.Additionally, the 14th bullet point states: do not advance the armada 14 pta catheter against significant resistance.The cause of resistance should be determined via fluoroscopy and remedial action taken.In this case, although it was reported that the balloon catheter was bent prior to use, this does not appear to have caused or contributed to the reported complaint or difficulty to advance or remove.The reported use of force during the procedure seemed to be a reasonable clinical response to the difficulties.The investigation determined the reported difficulty to advance/position and difficulty to remove the guide wire through the balloon catheter appear to be related to operational circumstances of the procedure.In this case, it is likely that the challenging anatomical conditions caused the reported resistance during advancement, resulting in the difficulty to advance and remove the balloon catheter over the guide wire.The reported/noted kink/bend on the shaft likely occurred due to handling during unpackaging prior to use.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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