A self expanding stent (10) formed from a resilient wire. The resilient wire comprises a zig zag form including an odd number of struts (12) such as seven struts and a bend (14) between each strut. There is first loop (18) of the resilient wire at the terminal end of a first strut and a second loop (18) of the resilient wire at the terminal end of a last strut. The stent as formed is substantially planar but in use is formed into a substantially cylindrical form (20) by being stitched onto a tubular body of a biocompatible graft material with at least the first strut and the last strut overlapping.