Stents with attached looped ends
First Claim
Patent Images
1. A prosthesis comprising:
- a plurality of wires forming a mesh, wherein terminal ends of the plurality of wires are Joined together at a first end of the mesh to form a plurality of strand junctions; and
spaced apart loops at the first end of the mesh, defining a spaced apart loop for each pair of adjacent strand junctions, each spaced apart loop formed from;
a first strand junction of the plurality of strand junctions consisting of a terminal end of a first wire of the plurality of wires forming the mesh and a terminal end of a second wire of the plurality of wires forming the mesh,a second strand junction of the plurality of strand junctions consisting of a terminal end of a third wire of the plurality of wires forming the mesh and a terminal end of a fourth wire of the plurality of wires forming the mesh,wherein the terminal end of the first wire is longer than the terminal end of the second wire to provide a strand extension extending beyond the terminal end of the second wire and looping back to be attached to and axially aligned with the second strand junction.
1 Assignment
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Accused Products
Abstract
An open frame prosthesis is formed with looped end terminations at its proximal and distal ends. At one end of the prosthesis, the filaments or strands are welded together in pairs to form strand couplings. A plurality of loop segments are connected to the strand couplings, one loop segment for each pair of adjacent strand couplings. In one version of the prosthesis, strands at the opposite end are bent to form looped ends. In another version, loop segments are connected to pairs of strand couplings at both ends of the prosthesis. The loop segments can be connected to the couplings by welding, fusion bonds, or tubes, which are either crimped or heat shrunk.
133 Citations
16 Claims
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1. A prosthesis comprising:
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a plurality of wires forming a mesh, wherein terminal ends of the plurality of wires are Joined together at a first end of the mesh to form a plurality of strand junctions; and spaced apart loops at the first end of the mesh, defining a spaced apart loop for each pair of adjacent strand junctions, each spaced apart loop formed from; a first strand junction of the plurality of strand junctions consisting of a terminal end of a first wire of the plurality of wires forming the mesh and a terminal end of a second wire of the plurality of wires forming the mesh, a second strand junction of the plurality of strand junctions consisting of a terminal end of a third wire of the plurality of wires forming the mesh and a terminal end of a fourth wire of the plurality of wires forming the mesh, wherein the terminal end of the first wire is longer than the terminal end of the second wire to provide a strand extension extending beyond the terminal end of the second wire and looping back to be attached to and axially aligned with the second strand junction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A prosthesis comprising:
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a plurality of wires forming a mesh having a longitudinal length, wherein terminal ends of the plurality of wires are joined together at a first end of the mesh to form a plurality of strand junctions; and spaced apart loops at the first end of the mesh, defining a spaced apart loop for each pair of adjacent strand junctions, each spaced apart loop formed from; a first strand junction of the plurality of strand junctions consisting of a terminal end of a first wire of the plurality of wires forming the mesh and a terminal end of a second wire of the plurality of wires forming the mesh secured together, a second strand junction of the plurality of strand junctions consisting of a terminal end of a third wire of the plurality of wires forming the mesh and a terminal end of a fourth wire of the plurality of wires forming the mesh secured together, wherein the terminal end of the first wire is longer than the terminal end of the second wire to provide a strand extension extending beyond the terminal end of the second wire and looping back to be attached to and axially aligned with the second strand junction; and
further wherein;each wire of the plurality of wires comprises nitinol; the plurality of wires are helically wound in a first direction over the longitudinal length of the mesh and in a second direction over the longitudinal length of the mesh; and the mesh has a variable diameter wherein at least one end region of the mesh has a larger diameter than a middle portion of the mesh. - View Dependent Claims (11, 12, 13)
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14. A prosthesis comprising:
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a tubular stent having a first end and a second end; a plurality of wires forming a mesh of the tubular stent, wherein terminal ends of the plurality of wires are joined together at a first end of the tubular stent to form a plurality of strand junctions and each of the plurality of wires forming the mesh extends from the first end of the tubular stent to the second end of the tubular stent; and spaced apart loops formed with the plurality of wires at the first end of the tubular stent, defining a spaced apart loop for each pair of adjacent strand junctions, each spaced apart loop formed from; a first strand junction of the plurality of strand junctions consisting of a terminal end of a first wire of the plurality of wires forming the mesh and a terminal end of a second wire of the plurality of wires forming the mesh, a second strand junction of the plurality of strand junctions consisting of a terminal end of a third wire of the plurality of wires forming the mesh and a terminal end of a fourth wire of the plurality of wires forming the mesh, wherein the terminal end of the first wire is longer than the terminal end of the second wire to provide a strand extension extending beyond the terminal end of the second wire and looping back to be attached to and axially aligned with the second strand junction. - View Dependent Claims (15, 16)
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Specification