Patent ID: 7862608

Claim:
A vascular prosthesis for implantation in a body vessel having a vessel wall, the vascular prosthesis comprising: first and second coil-shaped helical elements each having distal and proximal ends; the first and second coil shaped helical elements being ribbon type, coil shaped helical elements, each helical element having a width and a thickness with the width being substantially greater than the thickness; the first coil-shaped helical element extending more than 360Â° about a longitudinal axis of the prosthesis; the second coil-shaped helical element extending more than 360Â° about the longitudinal axis of the prostheses, the second coil-shaped helical element having an opposite direction of rotation to that of the first coil-shaped helical element; the first and second coil-shaped helical elements arranged in series with the entire first coil-shaped helical element being proximal of the second coil-shaped helical element and with the distal end of the first coil-shaped helical element secured to the proximal end of the second coil-shaped helical element; and an anchor section securing the distal end of the first coil-shaped helical element to the proximal end of the second coil-shaped helical element, the anchor section comprising a closed band extending 360Â° circumferentially.