REDUCED-STRAIN EXTRA- VASCULAR RING FOR TREATING AORTIC ANEURYSM
First Claim
1. Apparatus for attachment to an aorta of a patient, the apparatus comprising:
- an extra-vascular ring, which comprises a structural member, which is configured to assume an elongate hollow shape, which has first and second longitudinal ends, and is suitable for placement at least partially around the aorta so as to provide a generally cylindrical landing zone; and
an endovascular stent-graft, which is suitable for endovascular placement inside the aorta such that a portion of the endovascular stent-graft is positioned against an internal wall of the aorta at the landing zone provided by the structural member,wherein, if the structural member is unrolled to a planar shape, one side of the planar shape is defined by the first longitudinal end of the structural member, and at least the first longitudinal end has a profile that defines a series of curved portions and has no singularities or discontinuities, which profile extends along at least 50% of the first longitudinal end.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus (10) is provided that includes an extra-vascular ring (12) and an endo vascular stent-graft (14). The ring (12) comprises a structural member (30), which is configured to assume an elongate hollow shape (32), which has first and second longitudinal ends (40, 42), and is suitable for placement at least partially around an aorta (20) so as to provide a generally cylindrical landing zone. The endovascular stent-graft (14) is suitable for endovascular placement inside the aorta (20) such that a portion of the stent-graft (14) is positioned against an internal wall of the aorta (20) at the landing zone provided by the structural member (30). If the structural member (30) is unrolled to a planar shape (82), one side (90) of the planar shape (82) is defined by the first longitudinal end (40), and at least the first longitudinal end (40) has a profile that defines a series of curved portions and has no singularities or discontinuities, which profile extends along at least 50% of the first longitudinal end (40).
13 Citations
37 Claims
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1. Apparatus for attachment to an aorta of a patient, the apparatus comprising:
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an extra-vascular ring, which comprises a structural member, which is configured to assume an elongate hollow shape, which has first and second longitudinal ends, and is suitable for placement at least partially around the aorta so as to provide a generally cylindrical landing zone; and an endovascular stent-graft, which is suitable for endovascular placement inside the aorta such that a portion of the endovascular stent-graft is positioned against an internal wall of the aorta at the landing zone provided by the structural member, wherein, if the structural member is unrolled to a planar shape, one side of the planar shape is defined by the first longitudinal end of the structural member, and at least the first longitudinal end has a profile that defines a series of curved portions and has no singularities or discontinuities, which profile extends along at least 50% of the first longitudinal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15, 17, 18)
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12-14. -14. (canceled)
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16. (canceled)
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19-21. -21. (canceled)
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22. A method comprising:
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providing an extra-vascular ring, which includes a structural member, which is configured to assume an elongate hollow shape, which has first and second longitudinal ends, wherein, if the structural member is unrolled to a planar shape, one side of the planar shape is defined by the first longitudinal end of the structural member, and at least the first longitudinal end has a profile that defines a series of curved portions and has no singularities or discontinuities, which profile extends along at least 50% of the first longitudinal end; and placing the extra-vascular ring at least partially around a neck of an aneurysmal aorta of a patient so as to provide a generally cylindrical landing zone, such that the profile homogenously distributes strain on aortic tissue at the first longitudinal end of the structural member. - View Dependent Claims (23, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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24. (canceled)
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26. (canceled)
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37-38. -38. (canceled)
Specification