(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.Evaluation summary: visual and functional inspection was performed on the returned device.The deployment difficulty and resistance was 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 of the reported lot revealed no other incidents.The investigation was unable to determine a conclusive cause for the reported difficulties.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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It was reported that the procedure was to treat a 100% stenosed, chronic totally occluded, and heavily calcified lesion in the mid left common iliac artery.The 6x150mm absolute pro self-expanding stent system (sess) was advanced to the lesion.Resistance was felt with the thumbwheel when the stent was only 40% deployed; therefore, it was decided to remove the sess.The procedure was successfully completed with an 8x120mm no-abbott stent.There was no clinically significant delay in the procedure and no adverse patient effects.No additional information was provided.
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