Triple-collar stent-graft
First Claim
1. Apparatus comprising:
- an endovascular stent-graft, which comprises;
(a) a fluid flow guide; and
(b) a plurality of structural stent elements attached to at least a portion of the fluid flow guide; and
an elongated delivery tool,wherein the stent-graft is configured (a) to define a generally tubular foldable section, which comprises first, second, and third subsections, and (b) to assume;
a delivery configuration, when disposed in the elongated delivery tool, in which delivery configuration (a) the stent-graft, including the foldable section, is in a radially-compressed state, and (b) the foldable section is in a longitudinally-expanded state, in which state the first and the third subsections longitudinally surround the second subsection, anda deployment configuration, in which (a) the stent-graft, including the foldable section, is in a radially-expanded state, and (b) the foldable section is in a longitudinally-folded state, such that the second subsection is radially sandwiched between the first and the third subsections.
1 Assignment
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Accused Products
Abstract
An endovascular stent-graft (20, 120, 180, 220, 320) includes a fluid flow guide (22), and a plurality of structural stent elements (24) attached to at least a portion of the fluid flow guide (22). The stent-graft is configured to define a generally tubular foldable section (30), which comprises first, second, and third subsections (32, 34, 36). The stent-graft is configured to assume a delivery configuration and a deployment configuration. In the delivery configuration, (a) the stent-graft, including the foldable section (30), is in a radially-compressed state, and (b) the foldable section (30) is in a longitudinally-expanded state, in which state the first and the third subsections (32, 36) longitudinally surround the second subsection (34). In the deployment configuration, (a) the stent-graft, including the foldable section (30), is in a radially-expanded state, and (b) the foldable section (30) is in a longitudinally-folded state, such that the second subsection (34) is radially sandwiched between the first and the third subsections (32, 36). Other embodiments are also described.
525 Citations
26 Claims
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1. Apparatus comprising:
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an endovascular stent-graft, which comprises;
(a) a fluid flow guide; and
(b) a plurality of structural stent elements attached to at least a portion of the fluid flow guide; andan elongated delivery tool, wherein the stent-graft is configured (a) to define a generally tubular foldable section, which comprises first, second, and third subsections, and (b) to assume; a delivery configuration, when disposed in the elongated delivery tool, in which delivery configuration (a) the stent-graft, including the foldable section, is in a radially-compressed state, and (b) the foldable section is in a longitudinally-expanded state, in which state the first and the third subsections longitudinally surround the second subsection, and a deployment configuration, in which (a) the stent-graft, including the foldable section, is in a radially-expanded state, and (b) the foldable section is in a longitudinally-folded state, such that the second subsection is radially sandwiched between the first and the third subsections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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providing an endovascular stent-graft, which includes a fluid flow guide, and a plurality of structural stent elements attached to at least a portion of the fluid flow guide, wherein the stent-graft is configured to define a generally tubular foldable section, which comprises first, second, and third subsections; transvascularly introducing the stent-graft into a blood vessel of a human subject while the stent-graft is disposed in an elongated delivery tool in a delivery configuration, in which (a) the stent-graft, including the foldable section, is in a radially-compressed state, and (b) the foldable section is in a longitudinally-expanded state, in which state the first and the third subsections longitudinally surround the second subsection; and thereafter, transitioning the stent-graft to a deployment configuration in the blood vessel, in which configuration (a) the stent-graft, including the foldable section, is in a radially-expanded state, and (b) the foldable section is in a longitudinally-folded state, such that the second subsection is radially sandwiched between the first and the third subsections. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification