Vascular occlusion devices and methods
First Claim
1. A method for embolizing a blood vessel having an endoluminal wall defining a vascular lumen, the method comprising:
- advancing, via a pusher, an occlusion device to a target site in the vascular lumen of the blood vessel while the occlusion device is in a compressed state;
deploying the occlusion device at the target site in the blood vessel, wherein the occlusion device includes a mesh structure defining a longitudinal axis, wherein deploying the occlusion device includes radially expanding the occlusion device from the compressed state to an expanded state, and wherein, in the expanded state—
the occlusion device includes a plurality of radially extending regions,individual ones of the radially extending regions include an apex that contacts the endoluminal wall of the blood vessel,each of the apices has a thickness along the longitudinal axis of the occlusion device, andthe combined thicknesses of the apices is less than about 50% of a total length of the mesh structure along the longitudinal axis;
detaching the occlusion device from the pusher; and
maintaining the occlusion device in the expanded state at the target site in the blood vessel at least until the vascular lumen at the vascular site is embolized to occlude blood flow through the vascular lumen.
1 Assignment
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Accused Products
Abstract
A vascular occlusion device includes a braided filament mesh structure defining a longitudinal axis. The mesh structure has a relaxed configuration in which it has an axial array of radially-extending occlusion regions, each of which has a proximal side and a distal side meeting at a peripheral edge, the sides of each occlusion region forming a first angle relative to the longitudinal axis. Each occlusion region is axially separated from the adjacent occlusion region by a reduced-diameter connecting region. The mesh structure is radially compressible to a compressed state in which it is deployed intravascularly to a target site through a catheter. Upon deployment, the device radially expands to a constrained configuration in which the peripheral edges of the occlusion regions engage the vascular wall, and the sides of the occlusion regions form a second angle relative to the longitudinal axis that is smaller than the first angle.
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Citations
16 Claims
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1. A method for embolizing a blood vessel having an endoluminal wall defining a vascular lumen, the method comprising:
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advancing, via a pusher, an occlusion device to a target site in the vascular lumen of the blood vessel while the occlusion device is in a compressed state; deploying the occlusion device at the target site in the blood vessel, wherein the occlusion device includes a mesh structure defining a longitudinal axis, wherein deploying the occlusion device includes radially expanding the occlusion device from the compressed state to an expanded state, and wherein, in the expanded state— the occlusion device includes a plurality of radially extending regions, individual ones of the radially extending regions include an apex that contacts the endoluminal wall of the blood vessel, each of the apices has a thickness along the longitudinal axis of the occlusion device, and the combined thicknesses of the apices is less than about 50% of a total length of the mesh structure along the longitudinal axis; detaching the occlusion device from the pusher; and maintaining the occlusion device in the expanded state at the target site in the blood vessel at least until the vascular lumen at the vascular site is embolized to occlude blood flow through the vascular lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for embolizing a blood vessel having an endoluminal wall defining a vascular lumen, the method comprising:
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advancing an occlusion device, in a compressed state, to a target site in the vascular lumen of the blood vessel; deploying the occlusion device at the target site in the blood vessel, wherein the occlusion device includes a mesh structure defining a longitudinal axis, wherein deploying the occlusion device includes radially expanding the occlusion device from the compressed state to an expanded state, and wherein, in the expanded state— the occlusion device includes a plurality of radially extending regions, individual ones of the radially extending regions include an apex that contacts the endoluminal wall of the blood vessel, each of the apices has a thickness along the longitudinal axis of the occlusion device, and the combined thicknesses of the apices is less than about 50% of a total length of the mesh structure along the longitudinal axis; and maintaining the occlusion device in the expanded state at the target site in the blood vessel at least until blood flow through the occlusion device and the vascular lumen at the vascular site is occluded. - View Dependent Claims (10, 11, 12, 13)
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14. A method for embolizing a blood vessel having an endoluminal wall defining a vascular lumen, the method comprising:
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advancing an occlusion device through a catheter, in a compressed state, to a target site in the vascular lumen of the blood vessel; deploying the occlusion device at the target site in the blood vessel, wherein the occlusion device includes a mesh structure defining a longitudinal axis, wherein deploying the occlusion device includes radially expanding the occlusion device from the compressed state to an expanded state, and wherein, in the expanded state— the occlusion device includes a plurality of radially extending regions, individual ones of the radially extending regions include an apex that contacts the endoluminal wall of the blood vessel, each of the apices has a thickness along the longitudinal axis of the occlusion device, and the combined thicknesses of the apices is less than about 50% of a total length of the mesh structure along the longitudinal axis; and maintaining the occlusion device in the expanded state at the target site in the blood vessel at least until the vascular lumen at the vascular site is embolized to occlude blood flow through the vascular lumen. - View Dependent Claims (15, 16)
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Specification