Patent ID: 7410498

Claim:
A biocompatible non-memory expandable polymeric stent containing one helical element only and a hollow cylindrical element, wherein said helical element is adapted to be encased within the hollow part of said cylindrical element, and wherein said stent is adapted to be positioned in a body lumen, is at least in part biodegradable and includes a combination of at least one thermoplastic elastomeric polymer and at least one thermoplastic non-elastomeric polymer that has a glass transition temperature greater than 40° C., said stent being selected from the group of porous stents and stents that have a potential to become porous by action of body fluids in situ, said thermoplastic non-elastomeric polymer being present in such an amount as will provide mechanical strength and rigidity to the stent when in an expanded mode, and wherein said hollow cylindrical element is formed from said elastomeric polymer, and said one helical element is formed from said non-elastomeric polymer that is substantially biodegradable and said stent is adapted to provide necessary mechanical support at the lumen surface.