Patent ID: 8778007

Claim:
A stent and deployment system comprising: an elongate catheter defining a longitudinal axis having proximal and distal ends and a lumen extending therethrough; an elongate tubular balloon having an interior surface, an exterior surface, a proximal and a distal end wherein said proximal end is coupled to the distal end of said catheter and the distal end of said balloon is sealed, said balloon being everted and positioned within the lumen of said catheter whereby the distal end of said balloon is proximal to the proximal end of said balloon, said interior surface being in fluid communication with said catheter lumen and said exterior surface defining a pathway that is not in fluid communication with said catheter lumen; a stent device formed of a resilient material and being operable between a first configuration that is compressed and constrained when positioned within said catheter lumen and a second configuration that is expanded when deployed at a target site, said stent device being positioned within said pathway in said first configuration, said stent device includes a primary member having a helical shape with multiple adjacent turns and a plurality of side extension members positioned along the length and extend from said primary member in a general direction of said turns to thereby form a tubular framework, each side extension member having first and second ends wherein one of said first and second ends is fixedly coupled to said primary member and the other end is uncoupled to the primary member of said stent device and said side extension members are only fixedly coupled to each other through said primary member; an inflation source member coupled to the proximal end of said catheter for applying fluid pressure to the catheter lumen to thereby cause said everted balloon to extend distally from said catheter lumen and move said stent device from a first position within said catheter lumen to a second position distal to said catheter distal end.