Even expandable endovascular the stent assembly, to processes for their preparation and contained in such a the stent assembly stentführset and an insertion catheter for insertion of the stent in a body vessel of a patient

摘要

A self-expanding endovascular stent assembly comprises at least one stent segment (7, 8) formed by a single piece of wire arranged in a closed zig-zag configuration with struts (10) joining each other joints (11) and a covering sleeve (9). The stent segment (7, 8) is compressible from an expanded condition with a first radius (R) into an introduction condition with second radius (r). The struts (10) are retained solely by the sleeve (9), which is relatively inelastic and has a thickness of not more than 1 % of the first radius (R). A stent introducer set comprising the stent assembly includes an introducer catheter having an internal radius not exceeding 25 % of said first radius.