Struts 40 may be constructed of any material known in the art, such as stainless steel or other metals or alloys, polymeric materials, or composites of polymers and metal, Preferably, struts 40 are constructed of similar material to stents 20, and in most preferred embodiments, both stents 20 and struts 40 are constructed of stainless steel wire. [0025] Struts 40 extend generally parallel with inn