Occlusive devices
First Claim
1. A method for treatment of an aneurysm, comprising:
- positioning a distal opening of a catheter adjacent to the aneurysm, the catheter containing a framing device comprising a braided structure having a compressed state for delivery through the catheter to the aneurysm and an expanded state, the braided structure being shape set such that it forms a preset shape in the expanded state that has an interior cavity and an exterior surface for contacting a wall of the aneurysm;
releasing the framing device from the catheter such that the braided structure self-expands to its preset shape and the exterior surface of the braided structure contacts a distal portion of the aneurysm wall; and
after self-expansion of the braided structure, releasing at least one expandable component comprising foam into the interior cavity of the braided structure and thereby further expanding the framing device such that a distal portion of the framing device conforms at least partially to a shape of at least the distal portion of the aneurysm wall.
1 Assignment
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Accused Products
Abstract
A system for treatment of an aneurysm includes an intrasaccular device that can be delivered using a catheter. The device can include at least one expandable structure adapted to transition from a compressed configuration to an expanded configuration when released into the aneurysm. The expandable structure can have a specific shape or porosity. Multiple expandable structures can also be used, in which case each of the expandable structures can have a unique shape or porosity profile. The morphology of the aneurysm and orientation of any connecting arteries can determine the type, size, shape, number, and porosity profile of the expandable structure used in treating the aneurysm.
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Citations
19 Claims
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1. A method for treatment of an aneurysm, comprising:
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positioning a distal opening of a catheter adjacent to the aneurysm, the catheter containing a framing device comprising a braided structure having a compressed state for delivery through the catheter to the aneurysm and an expanded state, the braided structure being shape set such that it forms a preset shape in the expanded state that has an interior cavity and an exterior surface for contacting a wall of the aneurysm; releasing the framing device from the catheter such that the braided structure self-expands to its preset shape and the exterior surface of the braided structure contacts a distal portion of the aneurysm wall; and after self-expansion of the braided structure, releasing at least one expandable component comprising foam into the interior cavity of the braided structure and thereby further expanding the framing device such that a distal portion of the framing device conforms at least partially to a shape of at least the distal portion of the aneurysm wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for treatment of an aneurysm, comprising:
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positioning a distal opening of a catheter adjacent to the aneurysm, the catheter containing a framing device comprising a braided structure having a compressed state for delivery through the catheter to the aneurysm and an expanded state, the braided structure being shape set such that it forms a preset shape in the expanded state that has an interior cavity and an exterior surface for contacting a wall of the aneurysm; releasing the framing device from the catheter such that the braided structure self-expands to its preset shape such that at least a portion of the exterior surface of the braided structure contacts a distal portion of the aneurysm wall; and after self-expansion of the braided structure, releasing at least one expandable component comprising a liquid embolic into the interior cavity of the braided structure and thereby further expanding the braided structure such that a distal portion of the braided structure conforms at least partially to a shape of at least the distal portion of the aneurysm wall. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification