Patent ID: 6641609
Filing Date: 2003-11-04
Classification: A61F

Abstract:
A medical stent, comprising:at least two radial rings, each of said radial rings having windings, each of said rings having both a constricted state and an expanded state corresponding to the constricted state and expanded state of said windings of said stent, said constricted state being state of said rings in which said windings are curled in shape, said expanded state being a state of said rings in which said windings are uncurled in shape such that each of said rings becomes substantially circular and of greater diameter than said ring in said constricted state; and, longitudinal connectors, said longitudinal connectors connecting said radial rings to form said stent in a cylindrical shape, said of said stent allowing delivery of said stent on a catheter into a patient, and said expanded state of said stent causing said rings to rest against the walls of a body vessel into which said stent is placed, said rings being selectively expandable from said constricted state to said expanded state, said stent being flexible along substantially its entire longitudinal axis when said stent is in said constricted state, said stent being substantially rigid when said stent is expanded to said expanded state, and said stent being substantially the same length independent said of whether said rings or said stent are in said constricted or said expanded states wherein at least part of a first winding has at least a portion thereof selectively removed.