Stent graft delivery system
First Claim
1. A system for treating an aneurysm in a blood vessel, the system comprising:
- a first elongate flexible shaft having a proximal region and a distal region;
a first double-walled filling structure disposed over the distal region of the shaft, the filling structure having an outer wall and an inner wall, wherein the filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a first substantially tubular lumen to provide a path for blood flow, wherein the first filling structure comprises a first filling tube fluidly coupled therewith and adapted to fill the first filling structure with the filling medium;
at least a first expandable scaffold disposed adjacent the first filling structure, the first scaffold radially expandable within at least a portion of the tubular lumen of the first filling structure,wherein the first filling structure is separate from the first scaffold;
a first tether releasably coupled with the first filling structure thereby constraining axial movement of the first filling structure relative the first elongate flexible shaft such that the first scaffold and the first filling structure remain concentric with each other along the first flexible shaft during delivery and during deployment of the first scaffold and the first filling structure;
a second elongate flexible shaft;
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 the first filling structure in the aneurysm and to be filled with a hardenable fluid filling medium so that the outer wall conforms to the inside surface of the aneurysm and to the first filling structure and forms a second generally tubular lumen to provide a path for blood flow; and
at least a second scaffold separate from the first scaffold and the filling structures which can be expanded within at least a portion of the second tubular lumen of the second filling structure,wherein the second scaffold is separate from the second filling structure; and
a second tether releasably coupled with the second filling structure thereby constraining axial movement of the second filling structure relative the second elongate flexible shaft such that the second scaffold and the second filling structure remain concentric with each other along the second flexible shaft during delivery and during deployment of the second scaffold and the second filling structure.
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Accused Products
Abstract
A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
380 Citations
48 Claims
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1. A system for treating an aneurysm in a blood vessel, the system comprising:
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a first elongate flexible shaft having a proximal region and a distal region; a first double-walled filling structure disposed over the distal region of the shaft, the filling structure having an outer wall and an inner wall, wherein the filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a first substantially tubular lumen to provide a path for blood flow, wherein the first filling structure comprises a first filling tube fluidly coupled therewith and adapted to fill the first filling structure with the filling medium; at least a first expandable scaffold disposed adjacent the first filling structure, the first scaffold radially expandable within at least a portion of the tubular lumen of the first filling structure, wherein the first filling structure is separate from the first scaffold; a first tether releasably coupled with the first filling structure thereby constraining axial movement of the first filling structure relative the first elongate flexible shaft such that the first scaffold and the first filling structure remain concentric with each other along the first flexible shaft during delivery and during deployment of the first scaffold and the first filling structure; a second elongate flexible shaft; 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 the first filling structure in the aneurysm and to be filled with a hardenable fluid filling medium so that the outer wall conforms to the inside surface of the aneurysm and to the first filling structure and forms a second generally tubular lumen to provide a path for blood flow; and at least a second scaffold separate from the first scaffold and the filling structures which can be expanded within at least a portion of the second tubular lumen of the second filling structure, wherein the second scaffold is separate from the second filling structure; and a second tether releasably coupled with the second filling structure thereby constraining axial movement of the second filling structure relative the second elongate flexible shaft such that the second scaffold and the second filling structure remain concentric with each other along the second flexible shaft during delivery and during deployment of the second scaffold and the second filling structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A system for treating an aneurysm in a blood vessel, said system comprising:
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a first elongate flexible shaft having a proximal region and a distal region; a first expandable member disposed adjacent the distal region; a first expandable scaffold disposed over the expandable member, the first scaffold radially expandable from a collapsed configuration to an expanded configuration; a first double-walled filling structure disposed over the first scaffold, the filling structure having an outer wall and an inner wall, wherein the filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a first substantially tubular lumen to provide a path for blood flow, wherein the first scaffold in the expanded configuration engages the inner wall of the first filling structure; a first releasable coupling mechanism releasably coupling the first filling structure with the first flexible shaft, wherein the first coupling mechanism constrains axial movement of the first filling structure relative to the flexible shaft such that the first scaffold and the first filling structure remain concentric with each other along the first elongate flexible shaft during delivery and during deployment of the first scaffold and the first filling structure; a second elongate flexible shaft having a proximal region and a distal region; a second expandable member disposed adjacent the distal region; a second expandable scaffold disposed over the second expandable member, the second scaffold radially expandable from a collapsed configuration to an expanded configuration; a second double-walled filling structure disposed over the second scaffold, the second filling structure having an outer wall and an inner wall, wherein the second filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and to the first double-walled filling structure, and the inner wall forms a second substantially tubular lumen to provide a path for blood flow, wherein the second scaffold in the expanded configuration engages the inner wall of the second filling structure; a second releasable coupling mechanism releasably coupling the second filling structure with the second flexible shaft, wherein the second releasable coupling mechanism constrains axial movement of the second filling structure relative to the second flexible shaft such that the second scaffold and the second filling structure remain concentric with each other along the second elongate flexible shaft during delivery and during deployment of the second scaffold and the second filling structure; and a filling tube fluidly coupled with the first or second filling structure, the filling tube adapted to deliver the hardenable filling medium to the respective filling structure. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A system for treating an aneurysm in a blood vessel, said system comprising:
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a first elongate flexible shaft having a proximal region and a distal region; a first expandable member disposed adjacent the distal region; a first expandable scaffold disposed over the expandable member, the first scaffold radially expandable from a collapsed configuration to an expanded configuration; a first double-walled filling structure disposed over the first scaffold, the filling structure having an outer wall and an inner wall, wherein the filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a first substantially tubular lumen to provide a path for blood flow, wherein the first scaffold in the expanded configuration engages the inner wall of the first filling structure; a first releasable coupling mechanism releasably coupling the first filling structure with the first flexible shaft, wherein the first coupling mechanism constrains axial movement of the first filling structure relative to the flexible shaft; a second elongate flexible shaft having a proximal region and a distal region; a second expandable member disposed adjacent the distal region; a second expandable scaffold disposed over the second expandable member, the second scaffold radially expandable from a collapsed configuration to an expanded configuration; a second double-walled filling structure disposed over the second scaffold, the second filling structure having an outer wall and an inner wall, wherein the second filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and to the first double-walled filling structure, and the inner wall forms a second substantially tubular lumen to provide a path for blood flow, wherein the second scaffold in the expanded configuration engages the inner wall of the second filling structure; a second releasable coupling mechanism releasably coupling the second filling structure with the second flexible shaft, wherein the second releasable coupling mechanism constrains axial movement of the second filling structure relative to the second flexible shaft; a filling tube fluidly coupled with the first or second filling structure, the filling tube adapted to deliver the hardenable filling medium to the respective filling structure; and a filling tab fluidly coupled with the respective filling structure and fluidly coupled with the filling tube, wherein the filling tab comprises a scored or perforated region adapted to permit separation of the filling tab into two portions, the first portion remaining coupled with the respective filling structure after filling thereof with the hardenable filling medium and the second portion discrete and independent of the first portion.
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Specification