Coiled-sheet stent-graft with exo-skeleton
First Claim
1. A stent-graft, comprising:
- a tubular graft having a peripheral wall defining a periphery and a lumen therein, the lumen extending axially between first and second ends of the tubular graft;
an exo-skeleton attached to an intermediate portion of the peripheral wall, the exo-skeleton comprising a plurality of independent serpentine elements, each serpentine element extending both peripherally and axially along at least a portion of the peripheral wall, the serpentine elements being distributed axially along the peripheral wall in phase with one another for providing articulation of the tubular graft between adjacent serpentine elements, each serpentine element being biased to an enlarged condition for maintaining the lumen substantially open, and constrainable in a contracted condition for facilitating introduction into a body passage; and
a stent on the first end for substantially anchoring the first end within a body passage.
1 Assignment
0 Petitions
Accused Products
Abstract
A stent-graft having an exo-skeleton attached to a tubular graft, the tubular graft having a peripheral wall defining a lumen therein extending between first and second ends. The exo-skeleton may assume contracted and enlarged conditions, and includes one or more serpentine elements, each extending both peripherally and axially along at least a portion of the peripheral wall. Coiled-sheet stents are provided on the ends of the tubular graft for anchoring the ends within a body passage. Each serpentine element is a zigzag structure extending peripherally about the peripheral-wall, with a plurality of serpentine elements distributed axially along the peripheral wall. The serpentine elements are individually attached to the peripheral wall and/or connector elements may extend between adjacent serpentine elements. Alternatively, each serpentine element may define a generally sinusoidal shape extending axially along the peripheral wall. The tubular graft may have a bifurcated end from which a tubular graft extension segment may extend and to which a docking limb may be attached. A plurality of serpentine elements may also be attached to the extension segment and the docking limb.
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Citations
40 Claims
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1. A stent-graft, comprising:
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a tubular graft having a peripheral wall defining a periphery and a lumen therein, the lumen extending axially between first and second ends of the tubular graft;
an exo-skeleton attached to an intermediate portion of the peripheral wall, the exo-skeleton comprising a plurality of independent serpentine elements, each serpentine element extending both peripherally and axially along at least a portion of the peripheral wall, the serpentine elements being distributed axially along the peripheral wall in phase with one another for providing articulation of the tubular graft between adjacent serpentine elements, each serpentine element being biased to an enlarged condition for maintaining the lumen substantially open, and constrainable in a contracted condition for facilitating introduction into a body passage; and
a stent on the first end for substantially anchoring the first end within a body passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A stent-graft, comprising:
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a tubular graft having a peripheral wall defining a periphery and a lumen therein, the lumen extending axially between first and second ends of the tubular graft; and
a plurality of independent serpentine elements attached to and distributed axially along the peripheral wall in a predetermined configuration in phase with one another for providing articulation of the tubular graft between adjacent serpentine elements, each serpentine element defining a zigzag shape extending substantially peripherally about the peripheral wall of the tubular graft, each serpentine element being biased to an enlarged condition for maintaining the lumen substantially open, and constrainable in a contracted condition for facilitating introduction into a body passage. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
a tubular graft extension segment extending from the second end, the tubular graft extension segment having a peripheral wall; and
a plurality of serpentine elements attached to and distributed along the peripheral wall of the tubular graft extension segment in a predetermined configuration for providing articulation of the tubular graft extension segment between adjacent serpentine elements.
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26. The stent-graft of claim 25, further comprising:
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a tubular graft docking limb having a peripheral wall, the docking limb being attachable to the second end of the tubular graft adjacent the tubular graft extension segment; and
a plurality of serpentine elements attached to and distributed along the peripheral wall of the tubular graft docking limb in a predetermined configuration for providing articulation of the tubular graft docking limb between adjacent serpentine elements.
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27. A stent-graft for placement within a bifurcation, comprising:
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a first tubular graft segment having a first end and a second bifurcated end, the first tubular graft segment having a first peripheral wall;
a second tubular graft segment extending from the second bifurcated end, the second tubular graft segment having a second peripheral wall; and
an exo-skeleton attached to at least one of the first and second peripheral walls, the exo-skeleton comprising a plurality of independent serpentine elements, each serpentine element extending both peripherally and axially along at least a portion of the respective peripheral wall to which it is attached, the serpentine elements being distributed axially along the peripheral wall in phase with one another for providing articulation of the tubular graft between adjacent serpentine elements, each serpentine element being biased to an enlarged condition for maintaining the lumen substantially open, and constrainable in a contracted condition for facilitating introduction into a body passage. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A stent-graft, comprising:
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a tubular graft having a peripheral wall defining a periphery and a lumen therein, the lumen extending axially between first and second ends of the tubular graft;
a plurality of independent serpentine elements attached to and distributed axially along the peripheral wall in a predetermined configuration for providing articulation of the tubular graft between adjacent serpentine elements, each serpentine element defining a zigzag shape extending substantially peripherally about the peripheral wall of the tubular graft, adjacent serpentine elements being in phase with one another; and
a stent secured to each of the first and second ends of the tubular graft for substantially anchoring the first and second ends within a body passage. - View Dependent Claims (34, 35, 36)
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37. A stent-graft, comprising:
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a tubular graft having a peripheral wall defining a periphery and a lumen therein, the lumen extending axially between first and second ends of the tubular graft;
a plurality of independent serpentine elements attached to and distributed axially along an intermediate region of the tubular graft in a predetermined configuration for providing articulation of the tubular graft between adjacent serpentine elements, each serpentine element defining a zigzag shape extending substantially peripherally about the peripheral wall of the tubular graft, each serpentine element being biased to an enlarged condition for maintaining the lumen substantially open, and constrainable in a contracted condition for facilitating introduction into a body passage; and
a stent secured to each of the first and second ends of the tubular graft for substantially anchoring the first and second ends within a body passage. - View Dependent Claims (38, 39, 40)
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Specification