A spiral wire with shape memory wound to a small circumference for percutaneous introduction into an artery lumen has holding balloons gripping each end to control unwinding that increases and decreases circumference of a concentric graft tube against artery wall without under-sizing that creates dangerous gaps or over-sizing that promotes occlusion re-growth. Inflating holding balloons pushes ends of a plurality of tunnel arcs located at 2 mm intervals in rim around balloon circumferences tightly against graft tube whereupon push-rods within tunnel arcs simultaneously push out sharp circular sutures of memory material that return to original circular shape as they pierce and join graft tube and artery wall.
