It was reported that the procedure was to treat a de novo lesion located in the left anterior descending coronary artery that was 75% stenosed.Reportedly, the 2.5x33mm rx xience skypoint stent delivery system (sds) was advanced; however, failed to cross the lesion due to the anatomy and the proximal shaft separated in two outside the patient.The device was removed without issue.The same size stent was used to complete the procedure.There were no reported adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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A visual and dimensional inspection was performed on the returned device.The reported material separation was confirmed.The reported failure to advance could not be evaluated as the exact anatomical conditions encountered by the device used during the procedure could not be replicated in the test laboratory.Production record and corrective and preventive actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a review of the complaint handling database did not indicate a lot specific quality issue.A conclusive cause for the reported difficulties could not be determined; however, factors that could contribute to failure to advance include, but are not limited to, patient anatomical morphology, patient disease state, pre-dilatation strategy, device placement technique, interaction with previously placed stents or accessory devices.Factors contributing to a material separation include, but are not limited to, damage during manufacturing, interaction with accessory devices or inadvertent mishandling.In this case, it is possible the device may have interacted with the 75% stenosed lesion during advancement, resulting in the reported failure to advance in addition to the observed material deformation and collapsed inner/outer member, ultimately causing the reported material separation; however, this cannot be confirmed.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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