Vascular bands and delivery systems therefor
First Claim
1. Apparatus comprising:
- an extra-luminal ring, which comprises a structural member that, if disposed in a planar state, generally defines a planar shape having two first sides parallel to each other, and two second sides parallel to each other; and
a hollow, generally tubular delivery shaft, in which the extra-luminal ring is removably disposed for delivery with the structural member in a deformed state, in which (a) the structural member has a deformed-state elongate hollow shape, (b) the two second sides are generally straight and parallel with each other, and (c) the two first sides are curved at least partially around a deformed-state longitudinal axis defined by the deformed-state elongate hollow shape and by the delivery shaft,wherein the structural member is configured, upon deployment of the extra-luminal ring from the delivery shaft, to assume a relaxed state in which the structural member assumes a relaxed-state elongate hollow shape, different from the deformed-state elongate hollow shape, wherein, in the relaxed-state elongate hollow shape, (i) the two first sides are generally straight and parallel with each other, and (ii) the two second sides are curved at least partially around a relaxed-state longitudinal axis defined by the relaxed-state elongate hollow shape.
1 Assignment
0 Petitions
Accused Products
Abstract
An extra-luminal ring (1200) includes a structural member (1202), which assumes a first elongate hollow shape (1206) when in a relaxed state; when deformed to a planar state (1208), generally defines a planar shape (1209) having two first sides (1220A, 1220B) parallel to each other, and two second sides (1222A, 1222B) parallel to each other; and when in the relaxed state, is configured such that the two first sides (1220A, 1220B) are generally straight and parallel with each other, and the two second sides (1222A, 1222B) are curved at least partially around a first longitudinal axis (1230) defined by the first elongate hollow shape (1206). The structural member (1202), when in a deformed state, has a second elongate hollow shape (1240), different from the first elongate hollow shape (1206), in which the two second sides (1222A, 1222B) are generally straight and parallel with each other, and the two first sides (1220A, 1220B) are curved at least partially around a second longitudinal axis (1250) defined by the second elongate hollow shape (1240).
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Citations
26 Claims
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1. Apparatus comprising:
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an extra-luminal ring, which comprises a structural member that, if disposed in a planar state, generally defines a planar shape having two first sides parallel to each other, and two second sides parallel to each other; and a hollow, generally tubular delivery shaft, in which the extra-luminal ring is removably disposed for delivery with the structural member in a deformed state, in which (a) the structural member has a deformed-state elongate hollow shape, (b) the two second sides are generally straight and parallel with each other, and (c) the two first sides are curved at least partially around a deformed-state longitudinal axis defined by the deformed-state elongate hollow shape and by the delivery shaft, wherein the structural member is configured, upon deployment of the extra-luminal ring from the delivery shaft, to assume a relaxed state in which the structural member assumes a relaxed-state elongate hollow shape, different from the deformed-state elongate hollow shape, wherein, in the relaxed-state elongate hollow shape, (i) the two first sides are generally straight and parallel with each other, and (ii) the two second sides are curved at least partially around a relaxed-state longitudinal axis defined by the relaxed-state elongate hollow shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. Apparatus comprising:
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an extra-luminal ring, which comprises a structural member; and a hollow, generally tubular delivery shaft, in which the extra-luminal ring is removably disposed for delivery with the structural member in a deformed state, in which (a) the structural member has a deformed-state elongate hollow shape, which geometrically defines a plurality of line segments that are curved at least partially around a deformed-state longitudinal axis defined by the deformed-state elongate hollow shape and by the delivery shaft, wherein the structural member is configured, upon deployment of the extra-luminal ring from the delivery shaft, to assume a relaxed state in which (a) the structural member assumes a relaxed-state elongate hollow shape, different from the deformed-state elongate hollow shape, and (b) the plurality of line segments geometrically defined by the deformed-state elongate hollow shape are straight and parallel to a relaxed-state longitudinal axis defined by the relaxed-state elongate hollow shape. - View Dependent Claims (18, 19, 20, 21)
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22. A method comprising:
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providing an extra-luminal ring, which includes a structural member that, if disposed in a planar state, generally defines a planar shape having two first sides parallel to each other, and two second sides parallel to each other; advancing, to an external surface of a target blood vessel, a hollow, generally tubular delivery shaft, in which the extra-luminal ring is removably disposed for delivery with the structural member in a deformed state, in which (a) the structural member has a deformed-state elongate hollow shape, (b) the two second sides are generally straight and parallel with each other, and (c) the two first sides are curved at least partially around a deformed-state longitudinal axis defined by the deformed-state elongate hollow shape and by the delivery shaft; and after advancing the delivery shaft, deploying the extra-luminal ring from the delivery shaft such that the structural member transitions from the deformed state to a relaxed state and at least partially surrounds the blood vessel, wherein in the relaxed state, the structural member assumes a relaxed-state elongate hollow shape, different from the deformed-state elongate hollow shape, wherein, in the relaxed-state elongate hollow shape, (i) the two first sides are generally straight and parallel with each other, and (ii) the two second sides are curved at least partially around a relaxed-state longitudinal axis defined by the relaxed-state elongate hollow shape. - View Dependent Claims (23, 24, 25)
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26. A method comprising:
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providing an extra-luminal ring, which comprises a structural member; advancing, to an external surface of a target blood vessel, a hollow, generally tubular delivery shaft, in which the extra-luminal ring is removably disposed for delivery with the structural member in a deformed state, in which (a) the structural member has a deformed-state elongate hollow shape, which geometrically defines a plurality of line segments that are curved at least partially around a deformed-state longitudinal axis defined by the deformed-state elongate hollow shape and by the delivery shaft; and after advancing the delivery shaft, deploying the extra-luminal ring from the delivery shaft such that the structural member transitions from the deformed state to a relaxed state and at least partially surrounds the blood vessel, wherein in the relaxed state, the structural member assumes a relaxed-state elongate hollow shape, different from the deformed-state elongate hollow shape, wherein, in the relaxed-state elongate hollow shape, the plurality of line segments geometrically defined by the deformed-state elongate hollow shape are straight and parallel to a relaxed-state longitudinal axis defined by the relaxed-state elongate hollow shape.
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Specification