Patent ID: 7608087

Claim:
A method for deploying a medical device within a body, comprising the steps of: introducing a cannula into a blood vessel; inserting an expansion frame system through a first lumen of the cannula into the blood vessel, the expansion frame system comprising an outer wire having a second lumen and a longitudinal axis, an inner wire disposed axially through the second lumen, and a frame fixedly attached at a first circumferential point on the frame to a distal end of the outer wire, and fixedly attached at a second circumferential point on the frame to a distal end of the inner wire, wherein the outer wire and inner wire extend, starting from the first and second circumferential points respectively, in a generally proximal direction, wherein the first circumferential point is circumferentially displaced from the second circumferential point, and wherein the outer wire is axially displaceable relative to the inner wire; and displacing a proximal end of the outer wire axially relative to a proximal end of the inner wire to rotate the frame as a whole about an axis that is substantially perpendicular to the longitudinal axis to expand the frame diametrically so as to circumferentially engage the endolumenal surface of the blood vessel; and wherein the outer wire and inner wire are attached at their distal-most tips to the first and second circumferential points, respectively, and the inner wire has a stiffness sufficient to avoid buckling while rotating the frame.