Stent used as a balloon-expanding aneurism stent comprises a first tubular braid and a second tubular braid having a lower permeability than the first braid

摘要

Stent comprises a first tubular braid (2) and a second tubular braid (1) having a lower permeability than the first braid. The two braids are arranged coaxially to each other and are fixed so that they are implanted in the collapsed state in the body. Preferred Features: The contour of one of the braids is structured so that they interlock in the axial direction between the braids to prevent axial displacement. The first braid has a region (2a) with an enlarged diameter for receiving the second braid. The inner diameter of the second braid has the same inner diameter of the first braid in a region (2b) with a non-enlarged diameter.