It was reported that on (b)(6) 2014, an 8x40x136 xact stent was implanted in the internal carotid artery.During a follow up visit, on (b)(6) 2015, angiography was performed and the stent was noted to be circumferentially fractured with minimal restenosis.An 8-6/40mm acculink stent was implanted as treatment.There was no reported adverse patient sequela.No additional information was provided.
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(b)(4).The stent remains in the vessel.It is indicated that the delivery system is not returning for evaluation; therefore, a failure analysis of the complaint device could not be completed.A review of the lot history record revealed no non-conformances that would have contributed to the reported event.A query of the electronic complaint handling database revealed no other similar incidents from this lot.Additionally, restenosis is listed as a potential adverse effect in the xact instruction for use (ifu).Although a conclusive cause for the reported patient effect, and the relationship to the product, if any, cannot be determined, there is no indication of a product quality deficiency with respect to manufacturing, design or labeling.Based on the reviewed information, no product deficiency was identified.
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