Patent ID: 8641748
Filing Date: 2014-02-04
Classification: A61F,A61M

Abstract:
1. A vascular prosthesis delivery system comprising: a radially self-expandable tubular vascular prosthesis having a proximal end and a distal end and expandable from a first delivery position to a second placement position, in the first delivery position the radially self-expandable tubular vascular prosthesis being in an unexpanded position and having first inner and outer diameters and in the second position the radially self-expandable tubular vascular prosthesis being in a radially expanded position and having second inner and outer diameters greater than the first inner and outer diameters, respectively, for placement at a treatment site within the coronary or intracranial vasculature of a patient; an elongate metallic wire comprising a proximal end and a distal end, the elongate metallic wire being devoid of an internal through lumen that extends between the proximal and distal ends and having a radially extending proximal stop in a fixed position directly on the elongate metallic wire proximal a distal-most end of the elongate metallic wire, and a radially extending distal stop in a fixed position directly on the elongate metallic wire proximal the distal-most end of the elongate metallic wire and distal to the proximal stop, the elongate metallic wire configured for carrying the radially self-expandable tubular vascular prosthesis to the treatment site of the patient, the radially self-expandable tubular vascular prosthesis releasably mounted directly on the elongate metallic wire, the radially self-expandable tubular vascular prosthesis directly mounted on the elongate metallic wire and radially constrained on a segment of the elongate metallic wire between the distal stop and the proximal stop solely by an elongated sheath, the proximal stop having a diameter greater than the unexpanded first inner diameter of the proximal end of the radially self-expandable tubular vascular prosthesis and a surface for abutting the proximal end of the radially self-expandable tubular vascular prosthesis to restrict proximal movement of the radially self-expandable tubular vascular prosthesis as the radially self-expandable tubular vascular prosthesis is carried by the elongate metallic wire to the treatment site, and the distal stop having a radial diameter greater than the unexpanded first inner diameter of the distal end of the radially self-expandable tubular vascular prosthesis and a surface for abutting the distal end of the radially self-expandable tubular vascular prosthesis to restrict distal movement of the radially self-expandable tubular vascular prosthesis as the radially self-expandable tubular vascular prosthesis is carried by the elongate metallic wire to the treatment site; and the elongated sheath covering at least a portion of the elongate metallic wire, said sheath being slidable over said elongate metallic wire between a first position covering and constraining said radially self-expandable tubular vascular prosthesis in direct contact with said elongate metallic wire and a second position in which at least a portion of said radially self-expandable tubular vascular prosthesis is uncovered.