Occlusion system for endovascular treatment of an aneurysm
First Claim
1. A device for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the device comprising:
- an occlusion device configured for deployment in the parent vessel, the occlusion device having at least a first portion and a second portion;
wherein the first portion is permeable to blood flow and arranged such that, when the occlusion device is deployed, the first portion is angularly spaced from the second portion about an outer periphery of the occlusion device;
wherein the second portion is less permeable to blood flow than the first portion; and
wherein the occlusion device includes a plurality of apertures therein and wherein the apertures are substantially covered in the second portion by a covering material being less permeable to blood flow than the apertures in the first portion of the occlusion device.
2 Assignments
0 Petitions
Accused Products
Abstract
An occlusion system treats an aneurysm in a parent vessel. The parent vessel defines a lumen that has a lumen wall. The aneurysm has a neck in communication with the lumen. The occlusion system includes a stent configured for deployment in the parent vessel. The stent has at least a first portion and a second portion. The first portion is permeable to blood flow and is arranged such that, when the stent is deployed, the first portion is spaced from the neck of the aneurysm. The second portion is less permeable to blood flow than the first portion and is arranged such that, when the stent is deployed, the second portion overlies the neck of the aneurysm.
649 Citations
23 Claims
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1. A device for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the device comprising:
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an occlusion device configured for deployment in the parent vessel, the occlusion device having at least a first portion and a second portion; wherein the first portion is permeable to blood flow and arranged such that, when the occlusion device is deployed, the first portion is angularly spaced from the second portion about an outer periphery of the occlusion device; wherein the second portion is less permeable to blood flow than the first portion; and wherein the occlusion device includes a plurality of apertures therein and wherein the apertures are substantially covered in the second portion by a covering material being less permeable to blood flow than the apertures in the first portion of the occlusion device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the device comprising:
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an occlusion device configured for deployment in the parent vessel, the occlusion device having at least a first portion and a second portion wherein the first portion is permeable to blood flow and wherein the second portion is less permeable to blood flow than the first portion; and wherein the first portion comprises a braid having a first pitch and wherein the second portion comprises a braid having a second pitch, different from the first pitch of the braid in the first portion, and wherein the occlusion device is configured such that, when deployed, the second portion overlies the neck of the aneurysm.
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10. A device for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the device comprising:
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an occlusion device configured for deployment in the parent vessel, the occlusion device having at least a first portion and a second portion; wherein the first portion is permeable to blood flow and arranged such that, when the occlusion device is deployed, the first portion is angularly spaced from the second portion about an outer periphery of he occlusion device; wherein the second portion is less permeable to blood flow than the first portion; and wherein the first portion comprises a braid having a first pitch and wherein the second portion comprises a braid having a second pitch, different from the first pitch.
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11. A device for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the device comprising:
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an occlusion device configured for deployment in the parent vessel, the occlusion device having at least a first portion and a second portion; wherein the first portion is permeable to blood flow and arranged such that, when the occlusion device is deployed, the first portion is angularly spaced from the second portion about an outer periphery of the occlusion device; wherein the second portion is less permeable to blood flow than the first portion; and wherein the occlusion device is made of a shape memory material comprising braided Nitinol filaments, each filament having a diameter of no more than approximately 0.003 inches.
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12. A device for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the device comprising:
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an occlusion device configured for deployment in the parent vessel, the occlusion device having at least a first portion and a second portion; wherein the first portion is permeable to blood flow and arranged such that, when the occlusion device is deployed, the first portion is angularly spaced from the second portion about an outer periphery of the occlusion device; wherein the second portion is less permeable to blood flow than the first portion; wherein the occlusion device is made of a shape memory material; and wherein the occlusion device is collapsible and expands when deployed. - View Dependent Claims (13, 14)
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15. A device for treating an aneurysm in a parent vessel, the parent vessel defining a lumen and having a lumen wall, the aneurysm having a neck communicating with the lumen, the device comprising:
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an occlusion device configured for deployment in the parent vessel, the occlusion device having at least a first portion and a second portion wherein the first portion is permeable to blood flow and wherein the second portion is less permeable to blood flow than the first portion; and wherein the first portion is formed of a material defining apertures therein of a first size and wherein the second portion is formed of a material defining apertures therein of a second size smaller than the first size, and wherein the occlusion device is configured such that, when deployed, the second portion overlies the neck of the aneurysm. - View Dependent Claims (16)
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17. A device for treating an aneurysm in a bifurcated parent vessel having first and second legs, the aneurysm being located at the junction of the first and second legs, the aneurysm having a neck communicating with the interior of the bifurcated parent vessel, the device comprising:
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a bifurcated occlusion device configured for deployment in the bifurcated parent vessel, the occlusion device having a trunk portion, a first leg portion, and a second leg portion; and wherein the occlusion device has a non-covering portion being permeable to blood flow and a covering portion being less permeable to blood flow than the non-covering portion, the covering portion being situated at the junction of the first and second leg portions of the device such that, when the device is deployed, the second portion overlies the neck of the aneurysm.
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18. A method of treating an aneurysm in a parent vessel, the aneurysm having an opening in communication with the parent vessel, the method comprising:
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endovascularly moving a treatment device to a site in the parent vessel proximate the aneurysm; deploying the treatment device in the parent vessel; and covering the opening in the aneurysm with a covering portion of the treatment device to inhibit blood flow through the opening, the covering portion being angularly offset about an outer periphery of the treatment device from a non-covering portion which allows blood flow therethrough. - View Dependent Claims (19, 20, 21, 22)
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23. A method of treating an aneurysm in a parent vessel, the aneurysm having an opening in communication with the parent vessel, the method comprising:
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endovascularly moving a treatment device to a site in the parent vessel proximate the aneurysm; deploying the treatment device at the site in the parent vessel proximate the aneurysm; and covering the opening in the aneurysm with a covering portion of the treatment device to inhibit blood flow through the opening, wherein covering the opening includes placing a covering material on the covering portion of the treatment device after the treatment device is deployed in the parent vessel.
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Specification