Enhanced engagement member for anchoring prosthetic devices in body lumen
First Claim
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1. An endoluminal graft configured to frictionally engage an inner wall of a body vessel comprising:
- a graft;
a plurality of engagement members disposed on an outer surface of said graft, wherein the engagement members are configured to frictionally engage an inner wall of a vessel so as to inhibit longitudinal movement of the graft without piercing the vessel wall.
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Abstract
Novel intraluminal devices that include a plurality of engagement members to minimize graft migration and vessel wall damage are described. Applications of the instant teachings for AAA and TAA issues wherein proximal neck attachments are critical are featured, in addition to general usages with stenotic disease. Further, an enhanced engagement member is described for preventing the migration of a prosthetic device through a body lumen.
230 Citations
32 Claims
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1. An endoluminal graft configured to frictionally engage an inner wall of a body vessel comprising:
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a graft;
a plurality of engagement members disposed on an outer surface of said graft, wherein the engagement members are configured to frictionally engage an inner wall of a vessel so as to inhibit longitudinal movement of the graft without piercing the vessel wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20)
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13. An intraluminal device comprising:
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a tubular body having first and second ends and an outer longitudinal surface, the tubular body being radially expandable from a radially compressed state to a radially expanded state, and a plurality of specifically-configured engagement members disposed on an outer surface of the graft, wherein the engagement members are configured to frictionally engage an inner wall of a vessel so as to inhibit longitudinal movement of the graft without piercing the vessel wall.
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21. An endoluminal graft comprising:
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a tubular, biocompatible graft body having a predetermined circumference;
a plurality of undulating filaments extending circumferentially around the graft body and forming a generally ring-shaped configuration, each filament having a first and a second end extending through the graft body and forming an abutting junction between two filaments, wherein the first and second ends of each filament extend through the graft body; and
a joining member securing the junction between the two filaments, wherein the ends of the filaments extend through the joining member and are configured to frictionally engage a wall of a body vessel. - View Dependent Claims (22, 23, 24, 25, 26, 28, 30, 31)
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27. An endoluminal graft comprising:
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a generally cylindrical, tubular graft body; and
a plurality of rings of circumferentially disposed on an interior surface of the graft body, each of the rings comprising;
a first wireform having a first end and a second end, the first and second ends each projecting through the graft body to an exterior surface thereof;
a second wireform having a first end and a second end, the first and second ends each projecting through the graft body to the exterior surface thereof; and
joining members positioned adjacent to the exterior surface of the endoluminal graft, a first selected joining member joining the first end of the first wireform to the first end of the second wireform, and a second joining member joining the second end of the first wireform to the second end of the second wireform, wherein a portion of each of the wireforms extends through the joining member and defines a projection extension.
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29. An endoluminal graft comprising:
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a pliable, tubular graft body having an interior surface and an exterior surface; and
a plurality of generally circular wireforms circumferentially disposed along the interior surface of said graft body, said wireforms each being composed of at least two undulating wires, a first wireform being joined to a second wireform to form a joined pair of wire ends, each pair of wire ends extending through the graft body to the exterior surface thereof such that there is relative movement between the graft body and the wire ends;
wherein the wire ends define a projection extension, the projection extension configured to frictionally engage a wall of a body vessel.
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32. A method of preventing migration of an endoluminal graft through a body lumen comprising the steps of:
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providing an endoluminal graft having a plurality of engagement members disposed on an outer surface of the graft, wherein the engagement members are configured to frictionally engage an inner wall of a vessel so as to inhibit longitudinal movement of the graft without piercing the vessel wall; and
surgically disposing the endoluminal graft in a body lumen such that the engagement members frictionally engage the inner wall of the vessel without piercing the vessel wall.
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Specification