Patent ID: 8043357

Claim:
A stent arrangement comprising a first circular ring of a resilient wire and a second circular ring of a resilient wire, the second ring being substantially parallel to and spaced axially apart from the first ring and a zig zag portion extending between and around the periphery of the first ring and second ring, the first ring, the second ring and the zig zag portion comprising a continuous single piece of wire, the first ring and second ring each comprising two turns of the wire, the zig zag portion comprising a plurality of struts with bends between adjacent struts, the struts each extending from the first ring to the second ring and the bends between the struts being at one of the first ring and the second ring, whereby the first ring and the second ring provide radial dimensional stability by the rings restricting radial expansion and the first ring, the second ring and the zig zag portion defining a cylindrical peripheral surface to the stent.