Endoluminal grafts having continuously curvilinear wireforms
First Claim
1. An intraluminal graft, comprising:
- a biocompatible pliable tube, anda support scaffold connected to the tube including at least one annular wireform, each wireform defining a central axis and including;
a wire shaped with a plurality of curvilinear waveforms, the waveforms having a plurality of first co-planar apices and a plurality of second co-planar apices, the first and second apices alternating and extending in opposite directions, and a plurality of curvilinear segments extending between and connecting the alternating first and second apices, the curvilinear segments each having a direction of curvature in the same rotational orientation about the central axis as an adjacent curvilinear segment.
2 Assignments
0 Petitions
Accused Products
Abstract
An endoluminal grafts is provided which is constructed to be radially collapsed and/or radially compressed to a small diameter. The graft has wireforms which generally comprise a wire deformed into generally annular configuration and consisting of a plurality of curvilinear wave forms. The wave forms have a plurality of first apices in linear alignment with each other, a plurality of second apices in linear alignment with each other, and a plurality of curvilinear segments traversing back and forth between said first and second apices. The graft is i) initially disposable in a radially compact configuration of a first diameter and ii) subsequently expandable to a radially expanded configuration of a second diameter, said second diameter being larger than said first diameter. When in its radially compact configuration, the adjacent curvilinear segments of the wireforms will nest or seat in abutting contact with one another, thereby minimizing the diameter of the graft while in its radially compact configuration.
180 Citations
26 Claims
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1. An intraluminal graft, comprising:
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a biocompatible pliable tube, and a support scaffold connected to the tube including at least one annular wireform, each wireform defining a central axis and including; a wire shaped with a plurality of curvilinear waveforms, the waveforms having a plurality of first co-planar apices and a plurality of second co-planar apices, the first and second apices alternating and extending in opposite directions, and a plurality of curvilinear segments extending between and connecting the alternating first and second apices, the curvilinear segments each having a direction of curvature in the same rotational orientation about the central axis as an adjacent curvilinear segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wireform for medical stents or grafts, comprising:
a ring-shaped wireform defining a central axis and including a wire shaped with a plurality of curvilinear waveforms, the waveforms having a plurality of first co-planar apices and a plurality of second co-planar apices, the first and second apices alternating and extending in opposite directions, and a plurality of curvilinear segments extending between and connecting the alternating first and second apices, the curvilinear segments each having a direction of curvature in the same rotational orientation about the central axis as an adjacent curvilinear segment. - View Dependent Claims (14, 15, 16, 17)
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18. An intraluminal graft that is highly compactable, comprising:
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a biocompatible pliable tube, and a plurality of annular wireforms, each wireform defining a central axis and including in a radially expanded state; a wire having a zig-zag shape with a plurality of first apices extending in one axial direction and a plurality of second apices extending in the opposite axial direction, and a plurality of curvilinear segments extending between and connecting the alternating first and second apices, the curvilinear segments each having a direction of curvature in the same rotational orientation about the central axis as an adjacent curvilinear segment so that in a reduced-diameter state the curvilinear segments nest together. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification