| 摘要 |
A serpentine coiled ladder stent (30) is provided, in which the coil is formed from a wound strip of cells (37), wherein the sides (34, 35) of the cells (37) are serpentine windings, wherein the strip is formed of at least two side bands (34, 35) connected to each other, for example by a series of cross struts (36). The cross struts (36) may be positioned slightly askew. Each side band (34, 35) is formed in a serpentine pattern comprising a series of bends (38), wherein upon expansion of the stent (30), the bends (38) of the side bands (34, 35) open to increase the length of each of the individual cells (37) in the helical direction, thereby lengthening the strip in the helical direction to allow the stent (30) to expand without any significant unwinding of the strip. |
