Intravascular implants and methods of using the same
First Claim
1. A device for treating an aneurysm having a longitudinal axis, the device comprising:
- a vascular graft comprising a tubular channel having a first end and a second end, wherein the tubular channel is bifurcated at a bifurcated portion at the second end;
an expandable anchor attached to the first end of the tubular channel, wherein the expandable anchor comprises anchor arms, wherein each of the anchor arms extends at least partially in a longitudinal direction, wherein each of the anchor arms extends radially outward relative to a circumference of the vascular graft, wherein the expandable anchor comprises a first anchor portion having a first transverse diameter and a second anchor portion having a second transverse diameter, wherein the first and second anchor portions are defined by the anchor arms, wherein the second anchor portion is more distal to the vascular graft than the first anchor portion, wherein the second transverse diameter is greater than the first transverse diameter, and wherein the second anchor portion is a terminal end of the expandable anchor; and
a seal on the vascular graft, wherein the seal extends radially outward beyond an exterior surface of the vascular graft and comprises a seal volume fillable by a fluid,wherein the seal comprises a first seal portion and a second seal portion,wherein the first seal portion is separated from the second seal portion by a first length of material and a second length of material,wherein the first seal portion has a first portion radius measured from the longitudinal axis of the device to a furthest point on an exterior surface of the first seal portion,wherein the second seal portion has a second portion radius measured from the longitudinal axis of the device to the furthest point on an exterior surface of the second seal portion,wherein the first length of material has a first length of material radius measured from the longitudinal axis of the device to the furthest point along an exterior surface of the first length of material,wherein the second length of material has a second length of material radius measured from the longitudinal axis of the device to the furthest point along an exterior surface of the second length of material,wherein the first portion radius is greater than the first length of material radius and the second length of material radius, andwherein the second portion radius is greater than the first length of material radius and the second length of material radius.
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Accused Products
Abstract
An intravascular implant and methods of using the implant within the vasculature of the body, for example near a vascular aneurysm, are disclosed. A method of treating an aneurysm includes positioning a vascular graft comprising a tubular channel having a first end and a second end in a blood vessel, securing the vascular graft in place with an expandable anchoring member, and filling a seal cuff on the vascular graft, wherein the seal cuff extends radially outward beyond an exterior surface of the vascular graft, wherein the seal cuff comprises a first seal portion and a second seal portion and wherein the first seal portion is separated from the second seal portion by a first gap and a second gap along a circumference of the seal cuff.
247 Citations
32 Claims
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1. A device for treating an aneurysm having a longitudinal axis, the device comprising:
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a vascular graft comprising a tubular channel having a first end and a second end, wherein the tubular channel is bifurcated at a bifurcated portion at the second end; an expandable anchor attached to the first end of the tubular channel, wherein the expandable anchor comprises anchor arms, wherein each of the anchor arms extends at least partially in a longitudinal direction, wherein each of the anchor arms extends radially outward relative to a circumference of the vascular graft, wherein the expandable anchor comprises a first anchor portion having a first transverse diameter and a second anchor portion having a second transverse diameter, wherein the first and second anchor portions are defined by the anchor arms, wherein the second anchor portion is more distal to the vascular graft than the first anchor portion, wherein the second transverse diameter is greater than the first transverse diameter, and wherein the second anchor portion is a terminal end of the expandable anchor; and a seal on the vascular graft, wherein the seal extends radially outward beyond an exterior surface of the vascular graft and comprises a seal volume fillable by a fluid, wherein the seal comprises a first seal portion and a second seal portion, wherein the first seal portion is separated from the second seal portion by a first length of material and a second length of material, wherein the first seal portion has a first portion radius measured from the longitudinal axis of the device to a furthest point on an exterior surface of the first seal portion, wherein the second seal portion has a second portion radius measured from the longitudinal axis of the device to the furthest point on an exterior surface of the second seal portion, wherein the first length of material has a first length of material radius measured from the longitudinal axis of the device to the furthest point along an exterior surface of the first length of material, wherein the second length of material has a second length of material radius measured from the longitudinal axis of the device to the furthest point along an exterior surface of the second length of material, wherein the first portion radius is greater than the first length of material radius and the second length of material radius, and wherein the second portion radius is greater than the first length of material radius and the second length of material radius. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for treating an aneurysm having a longitudinal axis, the device comprising:
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a vascular graft comprising a tubular channel having a first end and a second end; an expandable anchor attached to the first end of the tubular channel, wherein the expandable anchor comprises anchor arms, wherein each of the anchor arms extends at least partially in a longitudinal direction, wherein each of the anchor arms extends radially outward relative to the longitudinal axis, wherein the expandable anchor comprises a first anchor portion having a first transverse diameter and a second anchor portion having a second transverse diameter, wherein the first and second anchor portions are defined by the anchor arms, wherein the second anchor portion is more distal to the vascular graft than the first anchor portion, wherein the second transverse diameter is greater than the first transverse diameter, and wherein the second anchor portion is a terminal end of the expandable anchor; and a seal on the vascular graft, wherein the seal extends radially outward beyond an exterior surface of the vascular graft and comprises a seal volume fillable by a fluid, wherein the seal comprises a first seal portion and a second seal portion, wherein the first seal portion is separated from the second seal portion by a first length of material and a second length of material, wherein the first seal portion has a first portion radius measured from the longitudinal axis of the device to a furthest point on an exterior surface of the first seal portion, wherein the second seal portion has a second portion radius measured from the longitudinal axis of the device to the furthest point on an exterior surface of the second seal portion, wherein the first length of material has a first length of material radius measured from the longitudinal axis of the device to the furthest point along an exterior surface of the first length of material, wherein the second length of material has a second length of material radius measured from the longitudinal axis of the device to the furthest point along an exterior surface of the second length of material, wherein the first portion radius is greater than the first length of material radius and the second length of material radius, and wherein the second portion radius is greater than the first length of material radius and the second length of material radius. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of treating an aneurysm, the method comprising:
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positioning a vascular graft comprising a tubular channel having a first end and a second end in a blood vessel of a patient, wherein the tubular channel is bifurcated at a bifurcated portion at the second end; securing the vascular graft in place with an expandable anchor attached to the first end of the tubular channel, wherein the expandable anchor comprises anchor arms, wherein each of the anchor arms extends at least partially in a longitudinal direction, wherein each of the anchor arms extends radially outward relative to the longitudinal axis, and wherein a leaf portion partially covers at least two of the longitudinal anchor arms; expanding the expandable anchor, wherein the expandable anchor comprises a first anchor portion having a first transverse width and a second anchor portion having a second transverse width, wherein the first and second anchor portions are defined by the anchor arms, wherein the second anchor portion is more distal to the vascular graft than the first anchor portion, wherein the second transverse width is greater than the first transverse width when the expandable anchor is expanded, and wherein the second anchor portion is a terminal end of the expandable anchor; and filling a seal on the vascular graft with a fluid, wherein the seal extends radially outward beyond an exterior surface of the vascular graft and the fluid fills a seal volume, wherein the seal comprises a first seal portion and a second seal portion, wherein the first seal portion is separated from the second seal portion by a first length of material and a second length of material, wherein the first seal portion has a first portion radius measured from the longitudinal axis to a furthest point on an exterior surface of the first seal portion, wherein the second seal portion has a second portion radius measured from the longitudinal axis to the furthest point on an exterior surface of the second seal portion, wherein the first length of material has a first length of material radius measured from the longitudinal axis to the furthest point along an exterior surface of the first length of material, wherein the second length of material has a second length of material radius measured from the longitudinal axis to the furthest point along an exterior surface of the second length of material, wherein the first portion radius is greater than the first length of material radius and the second length of material radius, and wherein the second portion radius is greater than the first length of material radius and the second length of material radius. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification