the stent of the present invention combines a helical strut band interconnected by coil elements . this structure provides a combination of attributes that are desirable in a stent , such as , for example , substantial flexibility , stability in supporting a vessel lumen , cell size and radial strength . the structure of the stent of the present invention provides a predetermined geometric relationship between the helical strut band and interconnected coil elements in order to maintain connectivity at any diameter size state of the stent .