| 摘要 |
The invention relates to an implant to be used for the occlusion of aneurysms in the region of vessel branches, in particular bifurcation aneurysms (A), with a mesh structure (3, 4), said implant comprising—from proximal to distal—a fixing section (b) by means of which the implant can be supported on the wall of a vessel, a permeable section (c) for the region of the vessel bifurcation, and a distal section (d) in which the implant is radially expanded in comparison to section (b) and which is intended for placement into the aneurysm (A). In the area of sections (c) or (d) a separation zone (T1, T2) is arranged that closes off at least partially the neck of the aneurysm, the distal section (d) being provided with a plurality of filaments and/or loops (12) connecting to section (c) and said filaments/loops (12) forming an angle of between −45° and +175° in relation to the longitudinal axis of the implant (1), wherein a positive angle is indicative of filaments pointing radially outward and a negative angle of filaments/loops (12) pointing radially inward. Alternatively, the distal section (d) may also be enlarged in the form similar to a sphere, mushroom, anchor or ellipsoid. |
| 主权项 |
1. Implant having a mesh structure (3, 4) to be used for the occlusion of aneurysms in the area of vessel branches, particularly bifurcation aneurysms (A), which—from proximal to distal—is provided with sections (b) to (d):
(b) a fixation section by means of which the implant can be supported on a vessel wall, (c) a permeable section for the vessel branching area, and (d) a distal section where in comparison with section (b) the implant is expanded radially and which is meant to be placed into the aneurysm (A), wherein in the area of sections (c) or (d) a separation zone (T1, T2) is arranged that closes off at least partially the neck of the aneurysm, the distal section (d) being provided with a plurality of filaments and/or loops (12) connecting to section (c) and said filaments/loops (12) forming an angle of between −45° and +175° in relation to the longitudinal axis of the implant (1), wherein a positive angle is indicative of filaments/loops pointing radially outward and a negative angle of filaments/loops (12) pointing radially inward. |
