(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).The device is expected to be returned for investigation.It has not yet been received.A follow-up report will be submitted with all additional relevant information.
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It was reported that the procedure was to treat a de novo lesion in a mid right vertebral artery that was narrow and eccentric and was 90% stenosed.A 4.5 x 12 mm herculink elite balloon expandable stent system was used; however, the balloon only partially inflated even after several attempts were made.Therefore, another 4.5 x 12 mm herculink elite stent was implanted to successfully complete the procedure.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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Internal file number - (b)(4).Evaluation summary: a visual and functional inspection was performed on the returned stent.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history of the reported lot revealed no other incidents.The inflation issue was not confirmed.It was reported that the rx herculink elite was being used to treat an arterial vertebral.The rx herculink elite instruction for use (ifu), states: the rx herculink elite peripheral stent system is intended to open lumen restrictions in the biliary tree, renal arteries, and protected peripheral arteries.In this case, it could not be determined if using the device off-label contributed to the inflation difficulty.The investigation determined that the reported difficulties were due to case circumstances.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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