| 摘要 |
<p>A stent (100) comprises at least one segment (110). The segment comprises a first tubular closed ring section (112), a second tubular closed ring section (114), a first generally helical section (116) having a first end (118) and a second end (120), and a second generally helical section (122) having a first end (124) and a second end (126). The first ends of the first and second generally helical sections extend from the first tubular closed ring section and the second ends extend from the second tubular closed ring section. The first and second generally helical sections both extend in the same direction about the longitudinal axis of the stent.</p> |
