(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.Based on the information reviewed, there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.The investigation was unable to determine a conclusive cause for the reported difficulties; however the additional patient effect of surgical procedure appears to be related to circumstances of the procedure.
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It was reported the procedure was to treat a de novo lesion in the right external iliac artery.The lesion was pre-dilated with a 9.0 mm balloon catheter successfully.The 10 x 39 mm omnilink stent delivery system (sds) was advanced and deployed successfully.However, intravascular ultrasound (ivus) noted that the proximal end of the stent implant had folded over.A balloon catheter was advanced in an attempt to mend the stent, but the stent became mangled.A cut down emergency procedure had to be performed to extract the mangled stent from the patient anatomy.The vessel was treated with endarterectomy and completed with a patch.No additional information was provided.
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