| 摘要 |
<p>A stent formed by slitting a tube to create a matrix of struts which lie more or less parallel to each other and to the longitudinal axis of the tube. The slitted tube is radially expandable to a stenting disposition in which the struts exhibit a zigzag pattern in successive loops around the circumference of the stent, the angle each strut makes with the longitudinal axis increasing as the stent diameter increases the zig-zag pattern exhibiting a cusp between any two adjacent struts with selected tied cusps of any one loop being connected by a bridge to a facing cusp of the adjacent loop. The bridge extends in a direction parallel to the longitudinal axis of the tube and with intervening free cusps, between any two bridges of a loop, not being connected to the adjacent loop. A plurality of radiopaque markers are distributed around the circumference of the stent, located axially adjacent to one cusp and in a recess flanked by the two end cusps that are circumferentially adjacent said one cusp.</p> |
