(b)(4).A review of the manufacturing records for the device verified the lot met all pre-release specifications.According to the gore viabahn® endoprosthesis instructions for use (ifu), once deployment is started, repositioning the endoprosthesis should not be attempted.
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On (b)(6) 2017 a patient was undergoing treatment of an arterio-venous access outflow stenosis, cephalic vein, with a 13mm x 5mm gore viabahn endoprosthesis with heparin bioactive surface.There was reportedly no calcium present in the treatment area.When the device was being deployed, the delivery catheter was moved forward by the physician and the deployment line became stuck.The device was partially deployed at this point.Then the delivery catheter was attempted to be pulled back.Another attempt to deploy the remainder of the device was made, but the deployment line broke.The stent did fully expand, therefore the physician made a small incision at the area where the stent deployed and cut the deployment line, leaving some line at the proximal edge of the stent.The patient was stable following the procedure.
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