| 摘要 |
The stent has a tubular body (3) comprising at least two sub-structures (1, 2 ; 11) containing a number of openings, preferably slits (6-9) extending in the tube length direction. A first sub-structure (1, 2) is expandible in at least the radial direction and comprises at least two radially expandible components (12, 13) with a helical configuration. A second sub-structure (11) extends uninterrupted in an axial direction between the two ends of the tube (4, 5) and is essentially rigid in this axial direction. The two sub-structures are configured so that the second sub-structure will absorb length forces resulting from radial expansion of the stent. |
