Patent ID: 7041116

Claim:
An intravascular obstruction removing wire comprising: an elongate wire body with a distal end; at least two non-branched wire portions having distal ends and proximal ends, the proximal ends of the non-branched wire portions being connected to the distal end of said elongate wire body; and a plurality of filament portions extending across said non-branched wire portions, wherein each of said filament portions has a first end portion, a second end portion, and a loop section extending between the first and second end portions thereof, wherein the first and second end portions of the filament portions are respectively gathered at the respective distal ends of the non-branched wire portions and respectively connected to the respective distal ends thereof, and the loop sections of the filament portions are separated from each other to form a trapping portion, and wherein said trapping portion is deformable from a large-diameter state in which said non-branched wire portions branch from the distal end of said elongate wire body forward in different directions and said filament portions are separated from each other, so that a space surrounded by said non-branched wire portions and said filament portions is formed to trap therein an obstruction in a blood vessel, to a small-diameter state in which said non-branched wire portions are positioned so that a distance between the wire portions is smaller than that of the non-branched wire portions in the large-diameter state, wherein the distal ends of said non-branched wire portions are separate from each other, and the loop sections of the filament portions define projecting portions separate from each other in directions perpendicular to a plane on which said non-branched wire portions extend, wherein a distance between adjacent ones of the projecting portions of said plurality of filament portions increases toward their distal ends, wherein the adjacent projecting portions are extended from the end portions at different angles with respect to the plane, and wherein one filament portion with a projecting portion extends on the plane.