System and method for delivering and deploying an occluding device within a vessel

A system for supporting and deploying a self-expanding occluding device, said system comprising:

• a self-expanding device;
• an introducer sheath;
• and
• an assembly for carrying the self-expanding device, said assembly comprising an elongate flexible member having a device retaining member comprising a protective coil receiving a first end of the self-expanding device into a proximalmost opening of, and concentrically within, an interior portion of the protective coil;
• a proximally positioned retaining member for engaging a second end of the self-expanding device;
• and a support extending along a portion of the elongate flexible member and having an outer surface for engaging an inner surface of said self-expanding device, the protective coil being rotatable relative to the self-expanding device;
• wherein rotation of the protective coil results in disengagement of the first end from within the interior portion, said self-expanding device being movable relative to said support;
• wherein said proximally positioned retaining member includes a biasing member that urges the self-expanding device toward a distal end of the flexible member when the self-expanding device is positioned on said support.