Custom-length self-expanding stent delivery systems and methods enable
precise control of prosthesis position during deployment. The stent
delivery systems carry multiple stent segments and include a stent bumper
for helping control the axial position of the stent segments during
deployment. This enables the deployment of multiple prostheses at a
target site with precision and predictability, preventing stent segment
recoil and ejection from the delivery device and thus eliminating
excessive spacing or overlap between prostheses. In particular
embodiments, the prostheses of the invention are deployed in stenotic
lesions in coronary or peripheral arteries or in other vascular
locations.