Patent ID: 8475520

Claim:
A stenting ring made of a tube or rolled-up sheet that has a wall with a characteristic wall thickness, the ring defining a lumen and being equipped with at least one marker made of a material different from a material of the ring, the ring being expansible from a radially compact disposition with a relatively small circumference to a radially expanded disposition with a relatively large circumference, the ring exhibiting in the compact disposition an arrangement of succeeding struts lying in alternate opposite directions, wherein the at least one marker: has a thickness in the radial direction of the ring that is less than the characteristic wall thickness, and has a width that extends circumferentially around an arc of the ring, includes a hole into which attachment material is introduced to attach the marker to the ring, is attached to the ring at a zone located at a point intermediate in an extent of said arc to a node connecting two struts, the node axially extended compared to other nodes in the ring, and at least partially radially overlaps with at least one strut adjacent to the arc when the ring is in the compact disposition, the at least one strut moving away from the at least one marker, when the ring expands toward said radially expanded disposition.