This disclosure provides design, material, manufacturing method, and use alternatives for medical devices. An example medical device includes a stent having a plurality of longitudinally extending filaments. The stent also has an inner surface and an outer surface and a plurality of tubular members extending along the stent. Each of the plurality of tubular members is coupled with one or more of the plurality of longitudinally extending filaments and each of the plurality of tubular members is configured to accept a radioactive element, a spacer or both.
