A SECURED STENT DELIVERY SYSTEM

摘要

A stent delivery system (30) which has a stent (1) , a catheter, and a tether (5) . The catheter has a balloon (10) with at least one fold (20) . The balloon and the stent both have unexpanded configurations with smaller diameters and expanded configurations with greater diameters. The tether defines a length and has a first end connected to the unexpanded stent and a contacting span enwrapped within the fold of the unexpanded balloon. The tether holds the unexpanded stent to the unexpanded balloon and releases the expanded stent from the expanded balloon. ,