It was reported, the 3.0x25mm nc trek balloon dilatation catheter (bdc) was used to pre-dilate the lesion.The same nc trek (bdc) was used again for post-dilatation.The nc trek (bdc) was inflated to rated balloon pressure (18 atmospheres)however, the balloon fully inflated except at the area of constriction; a section of the balloon seemed twisted.The nc trek bdc was replaced with a non-abbott bdc to complete the procedure.There were no adverse patient effects and no clinically significant delay in the procedure.
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(b)(4).Visual and functional inspections were performed on the returned device.The reported inflation issue was not confirmed; however, the outer member was twisted at the proximal seal.The cine of the event was received and reviewed by an abbott clinical specialist who noted the twisted nc trek rx balloon catheter was confirmed angiographically.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 from this lot.Based on the information reviewed, there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.The investigation was unable to determine a conclusive cause for the reported difficulties.
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