Vaskuläre Endoprothese mit Haken

摘要

A vascular endoprosthesis and a delivery device therefor comprising, in combination: a delivery device including a sheath (84) having a distal end adapted to receive the endoprosthesis (10) ; the endoprosthesis comprising a tubular graft (12) having proximal and distal ends and an anchor assembly (14) having proximal and distal ends, the anchor assembly (14) having a plurality of radially outwardly projecting hooks (24) at its distal end; the endoprosthesis being expandable and contractible between deployed and a delivery configurations; the distal end of the sheath having a radially extending flange (116) adapted to engage and underlie the radially extending hooks, the radial width of the flange being no less than the radial dimension of the hooks whereby when the endoprosthesis is contained within the sheath the radially extending hooks will be in engagement with the flange and will not protrude radially outwardly from the flange.