A vascular intervention device delivery system includes a thumbwheel rotatably mounted in a handle. A termination assembly is mechanically connected to the handle. A catheter extends through the termination assembly and has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device. A retractable sheath is movable from a first position covering the distal carrier segment to a second position refracted proximally to uncover the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath, and through the termination assembly. A stability sheath that receives the pull and the inner catheter has a proximal end that terminates in the termination assembly.
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