Vascular remodeling device
First Claim
1. A vascular stent, comprising:
- a proximal section having a first cross-sectional dimension and being configured to anchor in an afferent vessel of a bifurcation proximate to an aneurysm, the proximal section comprising a tubular shape that defines a proximal lumen;
a distal section having a second cross-sectional dimension and being configured to be positioned in an efferent vessel of the bifurcation, the distal section comprising a tubular shape that defines a distal lumen; and
a protruding section, between the proximal and distal sections, having a third cross-sectional dimension, the protruding section (i) being configured to abut an ostium of the aneurysm when the protruding section is positioned at the bifurcation, (ii) defining an intermediate lumen in fluid communication with the proximal and distal lumens, and (iii) having a strut pattern that is substantially the same as strut patterns of the proximal and distal sections;
wherein the proximal, distal and protruding sections are expandable from a compressed configuration to an expanded configuration;
wherein, in the compressed configuration, first cells of the proximal section and/or the distal section have a first compressed cell size greater than a second compressed cell size of second cells of the protruding section;
wherein, in the expanded configuration, the first cells have a first expanded cell size substantially equal to a second expanded cell size of the second cells.
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Accused Products
Abstract
Described herein are flexible implantable devices or stents that can conform to the shape of vessels of the neurovasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. In some embodiments, a vascular remodeling device includes a first section and a protruding section. During deployment, the device expands from a compressed configuration to an expanded configuration. The first section anchors the device in an afferent vessel and/or in an efferent vessel of a bifurcation and the protruding section is positioned in the junction of the bifurcation having an aneurysm and across the neck of the aneurysm or at least partially within the aneurysm.
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Citations
15 Claims
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1. A vascular stent, comprising:
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a proximal section having a first cross-sectional dimension and being configured to anchor in an afferent vessel of a bifurcation proximate to an aneurysm, the proximal section comprising a tubular shape that defines a proximal lumen; a distal section having a second cross-sectional dimension and being configured to be positioned in an efferent vessel of the bifurcation, the distal section comprising a tubular shape that defines a distal lumen; and a protruding section, between the proximal and distal sections, having a third cross-sectional dimension, the protruding section (i) being configured to abut an ostium of the aneurysm when the protruding section is positioned at the bifurcation, (ii) defining an intermediate lumen in fluid communication with the proximal and distal lumens, and (iii) having a strut pattern that is substantially the same as strut patterns of the proximal and distal sections; wherein the proximal, distal and protruding sections are expandable from a compressed configuration to an expanded configuration; wherein, in the compressed configuration, first cells of the proximal section and/or the distal section have a first compressed cell size greater than a second compressed cell size of second cells of the protruding section; wherein, in the expanded configuration, the first cells have a first expanded cell size substantially equal to a second expanded cell size of the second cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification