| 摘要 |
A radially expandable stent (300) is provided for blocking necks of aneurysms X in body lumens L such as blood vessels. The stent includes segments (310,320) which extend between junctions (30) and which can have their orientations adjusted to allow the stent to expand radially. A covering surface (370) is provided on at least a portion of the stent. The covering surface is sized sufficiently so that when it is oriented overlying a neck of an aneurysm X blood flow into the aneurysm is blocked and further expansion and/or rupture of the aneurysm X is prevented. The stent can feature a gap which leaves any side pathway of the body lumen L unblocked while positioning the covering surface to block the neck of the aneurysm X. |
