(b)(4).The device was not returned for analysis.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 identified no other incidents from this lot.It was reported that the stent delivery system (sds) was attempted to be deployed distal to a previously implanted stent.It should be noted that the xience skypoint instructions for use states, when treating multiple lesions within the same vessel, stent the distal lesion prior to stenting the proximal lesion.In this case, it is unknown if the ifu deviation contributed to the reported event.The investigation determined the reported difficulties appear to be related to the operational context of the procedure; however, a conclusive cause for the reported patient effect(s), and the relationship to the product, if any, cannot be determined; additionally, the reported foreign body in patient was due to a stent dislodgement within the anatomy.There is no indication of a product quality issue with respect to manufacture, design, or labeling of the device.
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