Graft systems having filling structures supported by scaffolds and methods for their use
First Claim
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1. A system for treating an aneurysm in a blood vessel, said system comprising:
- at least a first double-walled filling structure having an outer wall and an inner wall, wherein said double-walled filling structure is adapted to be filled with a hardenable fluid filling medium so that when the first filling structure is deployed across the aneurysm,the outer wall conforms to the inside surface of the aneurysm across the aneurysm and the inner wall forms a first generally tubular lumen to provide a path for blood flow across the aneurysm such that blood flow is in direct contact with the inner wall along the first generally tubular lumen;
at least a first scaffold separate from the first double-walled filling structure which can be expanded within at least a portion of the first tubular lumen of the filling structure;
a second double-walled filling structure having an outer wall and an inner wall, wherein said second double-walled filling structure is adapted to be placed adjacent to the first double-walled filling structure in the aneurysm and to be filled with a hardenable fluid filling medium so that when the second filling structure is deployed across the aneurysm, the outer wall conforms to the inside surface of the aneurysm across the aneurysm and to the first double-walled filling structure and forms a second generally tubular lumen to provide a path for blood flow across the aneurysm such that blood flow is in direct contact with the inner wall along the second generally tubular lumen; and
at least a second scaffold separate from the first scaffold and the double-walled filling structures which can be expanded within at least a portion of the second tubular lumen of the second double-walled filling structure.
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Abstract
Aneurysms are treated by filling at least one double-walled filling structure with a curable medium within the aneurysm. The filling structures may be delivered over balloon deployment mechanisms in order to shape and open tubular lumens therethrough. Scaffolds are placed into the tubular lumens in order to help maintain the shape, anchor the filling structures in place, and provide improved blood flow transition into and out of the tubular lumens.
405 Citations
20 Claims
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1. A system for treating an aneurysm in a blood vessel, said system comprising:
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at least a first double-walled filling structure having an outer wall and an inner wall, wherein said double-walled filling structure is adapted to be filled with a hardenable fluid filling medium so that when the first filling structure is deployed across the aneurysm,the outer wall conforms to the inside surface of the aneurysm across the aneurysm and the inner wall forms a first generally tubular lumen to provide a path for blood flow across the aneurysm such that blood flow is in direct contact with the inner wall along the first generally tubular lumen; at least a first scaffold separate from the first double-walled filling structure which can be expanded within at least a portion of the first tubular lumen of the filling structure; a second double-walled filling structure having an outer wall and an inner wall, wherein said second double-walled filling structure is adapted to be placed adjacent to the first double-walled filling structure in the aneurysm and to be filled with a hardenable fluid filling medium so that when the second filling structure is deployed across the aneurysm, the outer wall conforms to the inside surface of the aneurysm across the aneurysm and to the first double-walled filling structure and forms a second generally tubular lumen to provide a path for blood flow across the aneurysm such that blood flow is in direct contact with the inner wall along the second generally tubular lumen; and at least a second scaffold separate from the first scaffold and the double-walled filling structures which can be expanded within at least a portion of the second tubular lumen of the second double-walled filling structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification