Multi-component stent-graft system for implantation in a blood vessel with multiple branches
First Claim
1. Apparatus comprising a multi-component stent-graft system, which comprises:
- a first stent-graft, which is shaped so as to define, when in a radially-expanded state, exactly three lateral openings consisting of (a) proximal and distal superior first lateral openings facing in a first radial direction, and (b) a distal inferior first lateral opening facing in a second radial direction substantially opposite the first radial direction, the proximal and distal superior first lateral openings and distal inferior first lateral opening having respective perimeters; and
second, third, and fourth branching stent-grafts, which are configured assume radially-expanded states, wherein the first, the second, the third, and the fourth stent-grafts are configured such that the branching stent-grafts form respective blood-impervious seals with the first stent-graft around the distal inferior first lateral opening, the distal superior first lateral opening, and the proximal superior first lateral opening, respectively, when the branching stent-grafts are disposed therethrough, respectively, and the first, the second, the third, and the fourth stent-grafts are in their radially-expanded states.
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Accused Products
Abstract
A multi-component stent-graft system includes a first stent-graft, and second, third, and fourth branching stent-grafts. The first stent-graft is shaped so as to define, when in a radially-expanded state, proximal and distal superior first lateral openings facing in a first radial direction, and a distal inferior first lateral opening facing a second radial direction generally opposite the first radial direction. The second, third, and fourth branching stent-grafts are configured assume radially-expanded states, wherein the first, the second, the third, and the fourth stent-grafts are configured such that the branching stent-grafts form respective blood-impervious seals with the first stent-graft around the distal inferior first lateral opening, the distal superior first lateral opening, and the proximal superior first lateral opening, respectively, when the branching stent-grafts are disposed therethrough, respectively, and the first, the second, the third, and the fourth stent-grafts are in their radially-expanded states.
440 Citations
21 Claims
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1. Apparatus comprising a multi-component stent-graft system, which comprises:
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a first stent-graft, which is shaped so as to define, when in a radially-expanded state, exactly three lateral openings consisting of (a) proximal and distal superior first lateral openings facing in a first radial direction, and (b) a distal inferior first lateral opening facing in a second radial direction substantially opposite the first radial direction, the proximal and distal superior first lateral openings and distal inferior first lateral opening having respective perimeters; and second, third, and fourth branching stent-grafts, which are configured assume radially-expanded states, wherein the first, the second, the third, and the fourth stent-grafts are configured such that the branching stent-grafts form respective blood-impervious seals with the first stent-graft around the distal inferior first lateral opening, the distal superior first lateral opening, and the proximal superior first lateral opening, respectively, when the branching stent-grafts are disposed therethrough, respectively, and the first, the second, the third, and the fourth stent-grafts are in their radially-expanded states. - View Dependent Claims (2, 3, 4, 5, 6, 7, 19, 20)
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8. A method for treating a patient, comprising:
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transvascularly introducing a first stent-graft in a radially-compressed state, wherein the first stent-graft is shaped so as to define exactly three lateral openings consisting of (a) a proximal superior first lateral opening, (b) a distal superior first lateral opening, and (c) a distal inferior first lateral opening, and wherein the proximal and distal superior first lateral openings and distal inferior first lateral opening have respective perimeters; positioning the first stent-graft such that (a) a proximal portion of the first stent-graft, including a proximal end of the first-stent-graft, is in an upper part of a descending aorta, (b) a distal portion of the first stent-graft, including a distal end of the first stent-graft, is in a brachiocephalic artery, (c) the distal inferior first lateral opening faces upstream, substantially toward an ascending aorta, and (d) the proximal and the distal superior first lateral openings face and are aligned with a left subclavian artery and a left common carotid artery, respectively; transitioning the first stent-graft to a radially-expanded state after positioning the first stent-graft, such that the proximal and the distal superior first lateral openings face in a first radial direction, and the distal inferior first lateral opening faces in a second radial direction substantially opposite the first radial direction; transvascularly introducing and passing a second stent-graft, while in a radially-compressed state, through the proximal portion of the first stent-graft such that the second stent-graft is disposed through the distal inferior first lateral opening and is disposed partially in an aortic arch; transitioning the second stent-graft from the radially-compressed state to a radially-expanded state such that the second stent-graft forms a blood-impervious seal with the first stent-graft around the distal inferior first lateral opening; transvascularly introducing and positioning third and fourth stent-grafts, while in respective radially-compressed states, through the proximal portion of the first stent-graft such the third and fourth stent-grafts are disposed through the proximal superior first lateral opening and the distal superior first lateral openings, respectively, and are disposed partially in the left common carotid artery and the left subclavian artery, respectively; and transitioning the third and the fourth stent-grafts from the respective radially-compressed states to respective radially-expanded states such that the third and the fourth stent-grafts form blood-impervious seals with the first stent-graft around the proximal superior first lateral opening and the distal superior first lateral opening, respectively. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. Apparatus comprising a multi-component stent-graft system, which comprises:
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a first stent-graft, which is shaped so as to define, when in a radially-expanded state, proximal and distal superior first lateral openings facing in a first radial direction, and a distal inferior first lateral opening facing in a second radial direction substantially opposite the first radial direction, the proximal and distal superior first lateral openings and distal inferior first lateral opening having respective perimeters, wherein the perimeter of the distal inferior first lateral opening is at least 4.5 cm; and second, third, and fourth branching stent-grafts, which are configured assume radially-expanded states, wherein the first, the second, the third, and the fourth stent-grafts are configured such that the branching stent-grafts form respective blood-impervious seals with the first stent-graft around the distal inferior first lateral opening, the distal superior first lateral opening, and the proximal superior first lateral opening, respectively, when the branching stent-grafts are disposed therethrough, respectively, and the first, the second, the third, and the fourth stent-grafts are in their radially-expanded states. - View Dependent Claims (17, 18)
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21. A method for treating a patient, comprising:
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transvascularly introducing a first stent-graft in a radially-compressed state, wherein the first stent-graft is shaped so as to define a proximal superior first lateral opening, a distal superior first lateral opening, and a distal inferior first lateral opening, and wherein the proximal and distal superior first lateral openings and distal inferior first lateral opening have respective perimeters, wherein the perimeter of the distal inferior first lateral opening is at least 4.5 cm; positioning the first stent-graft such that (a) a proximal portion of the first stent-graft, including a proximal end of the first-stent-graft, is in an upper part of a descending aorta, (b) a distal portion of the first stent-graft, including a distal end of the first stent-graft, is in a brachiocephalic artery, (c) the distal inferior first lateral opening faces upstream, substantially toward an ascending aorta, and (d) the proximal and the distal superior first lateral openings face and are aligned with a left subclavian artery and a left common carotid artery, respectively; transitioning the first stent-graft to a radially-expanded state after positioning the first stent-graft, such that the proximal and the distal superior first lateral openings face in a first radial direction, and the distal inferior first lateral opening faces in a second radial direction substantially opposite the first radial direction; transvascularly introducing and passing a second stent-graft, while in a radially-compressed state, through the proximal portion of the first stent-graft such that the second stent-graft is disposed through the distal inferior first lateral opening and is disposed partially in an aortic arch; transitioning the second stent-graft from the radially-compressed state to a radially-expanded state such that the second stent-graft forms a blood-impervious seal with the first stent-graft around the distal inferior first lateral opening; transvascularly introducing and positioning third and fourth stent-grafts, while in respective radially-compressed states, through the proximal portion of the first stent- graft such the third and fourth stent-grafts are disposed through the proximal superior first lateral opening and the distal superior first lateral openings, respectively, and are disposed partially in the left common carotid artery and the left subclavian artery, respectively; and transitioning the third and the fourth stent-grafts from the respective radially- compressed states to respective radially-expanded states such that the third and the fourth stent-grafts form blood-impervious seals with the first stent-graft around the proximal superior first lateral opening and the distal superior first lateral opening, respectively.
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Specification