Systems and methods for aneurysm treatment and vessel occlusion
First Claim
1. A system for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the system comprising:
- a flexible stent configured for placement in the parent vessel adjacent the aneurysm neck, the stent comprising a first end and a second end and a stent wall extending therebetween defining a stent bore, the stent wall permeable to blood flow, the stent wall comprising a plurality of stent cells;
an inner sleeve positioned inside and coaxial with the flexible stent, the inner sleeve comprising a first end and a second end and a sleeve wall extending therebetween defining a sleeve bore, the sleeve wall comprising a plurality of sleeve cells; and
an implantable barrier device configured for placement within the aneurysm neck, the barrier device positioned outside of the stent and adjacent to the stent, the barrier device formed as a disc-shaped member having a first side and a second side opposite the first side, the barrier device comprising a first compact configuration and a second expanded configuration, the barrier device impermeable to blood flow in the second expanded configuration, wherein in the second expanded configuration, the barrier device is shaped to extend across the aneurysm neck to prevent blood flow through the aneurysm neck;
a vaso-occlusive device positioned outside the stent and adjacent the barrier device, the barrier device between the vaso-occlusive device and the stent, wherein when the vaso-occlusive device is in the aneurysm and the barrier device is extended across the aneurysm neck in the second expanded configuration, the barrier device retains the vaso-occlusive device within the aneurysmwherein the vaso-occlusive device comprises a balloon comprise-sing an elastomeric sheath having a plurality of zones, the zones having varying levels of elasticity.
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0 Petitions
Accused Products
Abstract
A system for treating an aneurysm includes an expandable barrier positionable to bridge an aneurysm neck. The barrier may comprise a fiber mesh, a balloon or a molly anchor member, and may unroll, unfold, or inflate from a compact configuration to an expanded configuration. Expansion of the barrier may be greater radially than axially. A vaso-occlusive member comprising a coil or balloon may be deposited in the aneurysm. Another aneurysm treatment system comprises an outer fenestrated stent and/or an inner fenestrated sleeve, which may be implanted together adjacent an aneurysm neck to regulate blood flow to the aneurysm. The sleeve may be movable relative to the stent to open or occlude the fenestrations, which may vary in size, shape, and distribution. An intra-luminal vessel occlusion device comprises a stent and a sheath. A drawstring may be actuated to gradually close a sheath orifice to control blood flow through the vessel.
169 Citations
21 Claims
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1. A system for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the system comprising:
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a flexible stent configured for placement in the parent vessel adjacent the aneurysm neck, the stent comprising a first end and a second end and a stent wall extending therebetween defining a stent bore, the stent wall permeable to blood flow, the stent wall comprising a plurality of stent cells; an inner sleeve positioned inside and coaxial with the flexible stent, the inner sleeve comprising a first end and a second end and a sleeve wall extending therebetween defining a sleeve bore, the sleeve wall comprising a plurality of sleeve cells; and an implantable barrier device configured for placement within the aneurysm neck, the barrier device positioned outside of the stent and adjacent to the stent, the barrier device formed as a disc-shaped member having a first side and a second side opposite the first side, the barrier device comprising a first compact configuration and a second expanded configuration, the barrier device impermeable to blood flow in the second expanded configuration, wherein in the second expanded configuration, the barrier device is shaped to extend across the aneurysm neck to prevent blood flow through the aneurysm neck; a vaso-occlusive device positioned outside the stent and adjacent the barrier device, the barrier device between the vaso-occlusive device and the stent, wherein when the vaso-occlusive device is in the aneurysm and the barrier device is extended across the aneurysm neck in the second expanded configuration, the barrier device retains the vaso-occlusive device within the aneurysm wherein the vaso-occlusive device comprises a balloon comprise-sing an elastomeric sheath having a plurality of zones, the zones having varying levels of elasticity. - View Dependent Claims (2, 3, 4, 5)
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6. A system for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the system comprising:
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a flexible stent configured for placement in the parent vessel adjacent the aneurysm neck, the stent comprising a first end and a second end and a stent wall extending therebetween defining a stent bore, the stent wall permeable to blood flow, the stent wall comprising a plurality of stent cells, the stent further comprising a stent window located in the stent wall; an inner sleeve positioned inside and coaxial with the flexible stent, the inner sleeve comprising a first end and a second end and a sleeve wall extending therebetween defining a sleeve bore, the sleeve wall comprising a plurality of sleeve cells; and an implantable barrier device configured for placement within the aneurysm neck, the barrier device positioned outside of the stent and adjacent to the stent, the barrier device formed as a disc-shaped member having a first side and a second side opposite the first side, the barrier device comprising a first compact configuration and a second expanded configuration, the barrier device impermeable to blood flow in the second expanded configuration; wherein in the second expanded configuration, the barrier device is shaped to extend across the aneurysm neck to prevent blood flow through the aneurysm neck. - View Dependent Claims (7, 8, 9, 10)
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11. A system for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the system comprising:
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a flexible stent configured for placement in the parent vessel adjacent the aneurysm neck, the stent comprising a first end and a second end and a stent wall extending therebetween defining a stent bore, the stent wall permeable to blood flow, the stent wall comprising a plurality of stent cells, a stent window located in the stent wall; an inner sleeve positioned inside and coaxial with the flexible stent, the inner sleeve comprising a first end and a second end and a sleeve wall extending therebetween defining a sleeve bore, the sleeve wall comprising a plurality of sleeve cells, a sleeve window located in the sleeve wall; wherein the system comprises an open configuration in which the sleeve window is aligned with the stent window, forming an unimpeded opening through the stent wall and the sleeve wall; and wherein the system comprises a closed configuration in which the sleeve window is offset from the stent window so that no portion of the sleeve window overlaps the stent window. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification