Endovascular stent and method of fabrication

摘要: A wire stent (10) for insertion and expansion into a passageway comprises plurality of curved sections that are formed generally circular configuration. Adjacent joined by bend or cusp (13), so series alternating opposing loops (15, 16) formed. The as has cylindrical shape with longitudinal opening through which folded balloon catheter is inserted. tightly contracted about the an overlapping region in portions adjacent longitudinally overlap. arranged when inflated, diverge circumferentially relative to each other, thereby decreasing while increasing diameter (24, 25). As increases, contacts surface In method present invention, fabricated from planar serpentine configuration (30). centered over semi-cylindrical trough (43) flat plate (40) then pressed forming bar (45) portion assumes shape. pulling tool (47), having hook (47a) at one end, engaged exposed (13) form wire. Once extracted removed, (22) inserted catheter.