The invention relates to an implant (1) 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—sections (a) to (d) where(a) is a section tapering down proximally in which the mesh structure is brought together to form one or several coupling elements (10),(b) is a fixing section by means of which the implant can be supported on the to wall of a vessel,(c) is a permeable section for the region of the vessel bifurcation, and(d) is a distal section in which the implant is expanded in comparison to section (b) and which is intended for placement into the aneurysm (A), wherein a separation zone (T1, T2) being arranged in the area of sections (c) or (d).
