It was reported that the procedure was performed to treat a calcified lesion in the iliac vessel.The 9.0 x 80 mm absolute pro self expanding stent system was advanced to the target lesion.During stent deployment, the deployment wheel stopped half way through deployment, but with manipulation the stent was able to completely deploy at the intended site.Post dilatation was completed successfully.There was no adverse patient effect and no clinically significant delay in the procedure.No additional information was provided.
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Visual and functional analysis was performed on the returned device.The reported difficulties were unable to be confirmed as the stent was already fully deployed.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 revealed no other complaints reported from this lot.The investigation was unable to determine a definitive cause for the reported difficulties.It may be possible that the distal shaft was bent or restricted in the anatomy (possibly at the aortic bifurcation) preventing the shaft lumens from moving freely and causing resistance with the thumbwheel.The chatter marks throughout the entire length of the distal sheath of the returned unit are consistent with the sheath being bent over an acute angle, further suggesting that anatomical conditions may have contributed to the difficulties encountered; however, this could not be confirmed.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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