Patent ID: 8721709

Claim:
A radially self-expansible stent having a thickness in the radial direction and an axial length (L) between end annuli adapted for delivery by a co-axial catheter delivery system, a part of which delivery system, during release of the stent, pushes on one end of the stent while withdrawing a sheath from around the abluminal surface of the stent, whereupon the stent expands from a radially compressed into a radially expanded state, the end annulus to be pushed having a circumference, with a plurality of spaced inflection zones being distributed in the circumference, at least one inflection zone carrying radiopaque markers, wherein the markers are shaped and located on the at least one inflection zone such that a compressive stress exerted on the end annulus during release of the stent is shared between the markers and the inflection zones that do not carry a marker, the markers are attached to the inflection zones in a fastening position by a weld, and the markers and the inflection zones exhibit respective facing surfaces that face each other across the welding zone, said facing surfaces including a mechanical form fit that inhibits relative circumferential sliding movement and allows relative movement of the marker and the inflection zone into the fastening position devoid of movement with a component in a radial direction relative to the longitudinal axis of the stent.