The product was not returned to abbott vascular for analysis.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.The reported patient effect of dissection is listed in the instructions for use (ifu) armada 35, armada 35 long length percutaneous transluminal angioplasty (pta) catheter, as a known patient effect of the procedure.It should be noted that the ifu, pta, armada 35 / armada 35 ll, global, ce, costa rica instructions for use states: inflation in excess of the rated burst pressure (rbp) may cause the balloon to rupture.Use of a pressure monitoring device is recommended.In this case the reported ifu violation does not appear to have caused or contributed to the reported dissection or reported difficulties as the armada balloon was replaced with an 8x40mm non-abbott high pressure balloon and anatomy/waist opened at 23atm.The investigation determined the reported irregular inflation issue appears to be related to user technique in conjunction with challenging lesion characteristics.A conclusive cause for the reported patient effect of intimal dissection, and the relationship to the product, if any, cannot be determined.There is no indication of a product quality issue with respect to the design, manufacture, or labeling.
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