Branched aortic arch stent graft and method of deployment
First Claim
1. A device for placement in the aortic arch and spanning the left brachiocephalic artery and the right brachiocephalic artery, the device comprising:
- a graft, the graft having a main body sized for insertion in the aortic arch and defining a central lumen;
the graft having a left branch and a right branch attached to the main body and arranged for flow communication with the central lumen, each of the main body, the left branch and the right branch including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration;
the left branch including a sheath arranged to constrain the left branch in the undeployed configuration, the left branch arranged to be pulled into the left brachiocephalic artery exclusively under tension by a left pull wire;
the right branch including a sheath arranged to constrain the right branch in the undeployed configuration, the right branch arranged to be pulled into the right brachiocephalic artery exclusively under tension by a right pull wire;
an inner sheath, the inner sheath arranged to constrain the main body of the graft in the undeployed configuration; and
an outer sheath, the outer sheath arranged to constrain each of the left branch and the right branch in a folded position generally adjacent the main body when each of the left branch and the right branch is in the undeployed configuration.
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Accused Products
Abstract
A stent-graft device for placement in the aortic arch comprises a graft having a main body sized for insertion in the aortic arch and defining a central lumen, the graft including a left branch and a right branch attached to the main body and arranged for flow communication with the central lumen, each of the main body, the left branch and the right branch including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration. The left and right branches each branch include a sheath arranged to constrain the branches in the undeployed configuration, and the left and right branches are arranged to be pulled into the left or right brachiocephalic artery exclusively under tension by respective pull wires. An inner sheath is arranged to constrain the main body of the graft in the undeployed configuration, and an outer sheath is arranged to constrain each of the left branch and the right branch in a folded position generally adjacent the main body when each of the left branch and the right branch is in the undeployed configuration.
130 Citations
20 Claims
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1. A device for placement in the aortic arch and spanning the left brachiocephalic artery and the right brachiocephalic artery, the device comprising:
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a graft, the graft having a main body sized for insertion in the aortic arch and defining a central lumen;
the graft having a left branch and a right branch attached to the main body and arranged for flow communication with the central lumen, each of the main body, the left branch and the right branch including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration;
the left branch including a sheath arranged to constrain the left branch in the undeployed configuration, the left branch arranged to be pulled into the left brachiocephalic artery exclusively under tension by a left pull wire;
the right branch including a sheath arranged to constrain the right branch in the undeployed configuration, the right branch arranged to be pulled into the right brachiocephalic artery exclusively under tension by a right pull wire;
an inner sheath, the inner sheath arranged to constrain the main body of the graft in the undeployed configuration; and
an outer sheath, the outer sheath arranged to constrain each of the left branch and the right branch in a folded position generally adjacent the main body when each of the left branch and the right branch is in the undeployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 9, 11)
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7. A device for placement in the aortic arch and spanning the left brachiocephalic artery and the right brachiocephalic artery, the device comprising:
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a graft, the graft having a main body sized for insertion in the aortic arch and defining a central lumen;
the graft having a left branch and a right branch attached to the main body and arranged for flow communication with the central lumen, each of the main body, the left branch and the right branch including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration;
the left branch including a sheath arranged to constrain the left branch in the undeployed configuration, the left branch arranged to be pulled into the left brachiocephalic artery exclusively under tension by a left pull wire;
the right branch including a sheath arranged to constrain the right branch in the undeployed configuration, the right branch arranged to be pulled into the right brachiocephalic artery exclusively under tension by a right pull wire;
an inner sheath, the inner sheath arranged to constrain the main body of the graft in the undeployed configuration;
an outer sheath, the outer sheath arranged to constrain each of the left branch and the right branch in a folded position generally adjacent the main body when each of the left branch and the right branch is in the undeployed configuration; and
wherein the left pull wire is sized to extend into the left brachiocephalic artery and the right pull wire is sized to extend into the right brachiocephalic artery, each of the left and right pull wires arranged for engagement by a corresponding snare wire. - View Dependent Claims (8)
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10. A device for placement in the aortic arch and spanning the left brachiocephalic artery and the right brachiocephalic artery, the device comprising:
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a graft, the graft having a main body sized for insertion in the aortic arch and defining a central lumen;
the graft having a left branch and a right branch attached to the main body and arranged for flow communication with the central lumen, each of the main body, the left branch and the right branch including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration;
the left branch including a sheath arranged to constrain the left branch in the undeployed configuration, the left branch arranged to be pulled into the left brachiocephalic artery exclusively under tension by a left pull wire;
the right branch including a sheath arranged to constrain the right branch in the undeployed configuration, the right branch arranged to be pulled into the right brachiocephalic artery exclusively under tension by a right pull wire;
an inner sheath, the inner sheath arranged to constrain the main body of the graft in the undeployed configuration;
an outer sheath, the outer sheath arranged to constrain each of the left branch and the right branch in a folded position generally adjacent the main body when each of the left branch and the right branch is in the undeployed configuration; and
wherein the device is arranged for delivery into the aorta using a multi-lumen catheter, and wherein each of the left and right pull wires are arranged to exit the delivery catheter exclusively through the left and right branches, and further wherein each of the inner and outer sheaths are arranged for release using sheath pull wires extending through the catheter.
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12. A device for placement in the aortic arch, the device comprising:
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a graft, the graft having a main body sized for insertion in the aortic arch and spanning the left brachiocephalic artery and the right brachiocephalic artery, the main body defining a central lumen, the main body including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration;
the graft having a left branch and a right branch attached to the main body and arranged for flow communication with the central lumen, each of the left branch and the right branch including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration, each of the left branch and the right branch further including a sheath, the sheath of the left branch and the sheath of the right branch arranged to constrain the corresponding branch in the undeployed configuration, the left branch arranged to be pulled into the left brachiocephalic artery exclusively under tension by a left pull wire, the right branch arranged to be pulled into the right brachiocephalic artery exclusively under tension by a right pull wire;
an inner sheath, the inner sheath arranged to constrain the main body of the graft in the undeployed configuration; and
an outer sheath, the outer sheath arranged to constrain each of the left branch and the right branch in a folded position generally adjacent the main body when each of the left branch and the right branch is in the undeployed configuration. - View Dependent Claims (16, 17, 18, 19)
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13. A device for placement in the aortic arch and spanning the left brachiocephalic artery and the right brachiocephalic artery, the device comprising:
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a graft, the graft having a main body sized for insertion in the aortic arch and defining a central lumen, the main body including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration;
the graft having a left branch and a right branch attached to the main body and arranged for flow communication with the central lumen, each of the left branch and the right branch including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration, each of the left branch and the right branch further including a sheath, the sheath of the left branch and the sheath of the right branch arranged to constrain the corresponding branch in the undeployed configuration, the left branch arranged to be pulled into the left brachiocephalic artery exclusively under tension by a left pull wire, the right branch arranged to be pulled into the right brachiocephalic artery exclusively under tension by a right pull wire;
an inner sheath, the inner sheath arranged to constrain the main body of the graft in the undeployed configuration;
an outer sheath, the outer sheath arranged to constrain each of the left branch and the right branch in a folded position generally adjacent the main body when each of the left branch and the right branch is in the undeployed configuration; and
wherein the left pull wire is sized to extend into the left brachiocephalic artery and the right pull wire is sized to extend into the right brachiocephalic artery, each of the left and right pull wires arranged for withdrawal exclusively under tension through a free end of the corresponding branch. - View Dependent Claims (14, 15)
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20. A method of repairing an aneurysm in the aortic arch having a left subclavian artery transposed to the left common carotid artery, the method comprising the steps of:
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providing a graft, the graft having a main body sized for insertion in the aortic arch and defining a central lumen, the main body including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration;
providing the graft with a left branch and a right branch attached to the main body and arranged for flow communication with the central lumen, each of the left branch and the right branch including a stent and shiftable between a narrowed undeployed configuration and an expanded deployed configuration;
providing a sheath on each of the left branch and the right branch, each sheath arranged to constrain the corresponding branch in the undeployed configuration;
providing an inner sheath to constrain the main body of the graft in the undeployed configuration;
providing an outer sheath arranged to constrain each of the left branch and the right branch in a folded position generally adjacent the main body when each of the left branch and the right branch is in the undeployed configuration;
inserting the graft into the aortic arch with the graft spanning both the left and the right brachiocephalic arteries;
pulling the let branch into the left brachiocephalic artery exclusively under tension by a left pull wire;
pulling the right branch into the right brachiocephalic artery exclusively under tension by a right pull wire; and
removing the outer sheath, the inner sheath, and the sheaths constraining the left and right branches.
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Specification