STENT GRAFT DELIVERY SYSTEM
First Claim
1. A system for treating an aneurysm in a blood vessel, the system comprising:
- an 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; and
at least a first expandable scaffold disposed adjacent the filling structure, the first scaffold radially expandable within at least a portion of the tubular lumen of the filling structure,wherein the filling structure is separate from the first scaffold and axially separated therefrom.
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0 Petitions
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.
183 Citations
182 Claims
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1. A system for treating an aneurysm in a blood vessel, the system comprising:
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an 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; and at least a first expandable scaffold disposed adjacent the filling structure, the first scaffold radially expandable within at least a portion of the tubular lumen of the filling structure, wherein the filling structure is separate from the first scaffold and axially separated therefrom. - 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, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. A method for treating an aneurysm, said method comprising:
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providing an elongate flexible shaft having a proximal end and a distal end, the flexible shaft carrying a first double-walled filling structure and a first scaffold adjacent the distal end; advancing the elongate shaft in a patient'"'"'s vasculature such that the first double-walled filling structure traverses the aneurysm; axially moving the first scaffold relative to the first filling structure such that at least a portion of the first scaffold is disposed within the first double-walled filling structure; radially expanding the first scaffold from a contracted configuration to an expanded configuration; and filling the first filling structure with a fluid filling medium so that an outer wall of the first filling structure conforms to an inside surface of the aneurysm and an inner wall of the first filling structure forms a first substantially tubular lumen to provide a first blood flow path across the aneurysm, and wherein the at least a portion of the first double-walled filling structure is disposed in the first substantially tubular lumen. - View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113)
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114. A system for treating an aneurysm in a blood vessel, said system comprising:
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an elongate flexible shaft having a proximal region and a distal region; an 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 filling structure; and a first releasable coupling mechanism releasably coupling the filling structure with the flexible shaft, wherein the coupling mechanism constrains axial movement of the filling structure relative to the flexible shaft. - View Dependent Claims (115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156)
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157. A method for treating an aneurysm in a patient, said method comprising:
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providing an elongate flexible shaft having a proximal end, a distal end, and an expandable member near the distal end, the flexible shaft carrying a first radially expandable scaffold over the expandable member and a first double walled filling structure disposed over the first scaffold; advancing the shaft in the vasculature of the patient so that the first filling structure is delivered to the aneurysm; filling the first filling structure with a first fluid filling medium so that an outer wall of the first filling structure conforms to an inside surface of the aneurysm and an inner wall of the first filling structure forms a first substantially tubular lumen to provide a first blood flow path across the aneurysm; radially expanding the first scaffold from a contracted configuration to an expanded configuration, wherein in the expanded configuration the first scaffold engages the inner wall of the first filling structure; hardening the fluid filling medium in the first filling structure; releasing the first filling structure from the flexible shaft; and retracting the flexible shaft away from the first filling structure. - View Dependent Claims (158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182)
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Specification