Neurovascular occlusion device
AssigneeEmbolic Acceleration, LLC
InventorsAndrew H. Cragg, John Logan, Brett E. Naglreiter, Alejandro Espinosa
Life of this patent
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Abstract
A neurovascular occlusion device for occluding a vessel and a delivery system for delivering the occlusion device. The occlusion device can include a self-expandable support structure defining a concave occlusive component and an anchoring component separated by a neck component. The occlusive component can carry a functionally occlusive membrane configured to prevent substantially all fluid from flowing past the occlusion device when the occlusion device is expanded in the vessel.
Claims29
A neurovascular occlusion device for occluding blood flow in a vessel, comprising:
- a support structure, self-expandable from a reduced cross-section for transluminal navigation to an enlarged cross-section for occluding a vessel, the support structure defining a concave occlusive component and an anchoring component separated by a neck component, the anchoring component comprising a ring of cells, the ring of cells comprising a first cell and a circumferentially adjacent second cell, a length of the first cell in a longitudinal direction being greater than a length of the second cell in the longitudinal direction.
The neurovascular occlusion device of any one of the preceding claims, wherein nodes of each of the cells closest to the neck component are longitudinally aligned with each other.
The neurovascular occlusion device of any one of the preceding claims, wherein the anchoring component is concave in a direction away from the concave occlusive component.
The neurovascular occlusion device of any one of the preceding claims, wherein the support structure has an expansion ratio of at least about 8:1.
The neurovascular occlusion device of any one of the preceding claims, wherein the expansion ratio is at least about 10:1.
The neurovascular occlusion device of any one of the preceding claims, further comprising a functionally occlusive membrane without a guidewire lumen and carried by the occlusive component.
The neurovascular occlusion device of any one of the preceding claims, further comprising elongate markers positioned at a proximal end and/or a distal end of the occlusion device, a major axis of the elongate markers extending in a longitudinal direction of the occlusion device.
A neurovascular occlusion device for occluding blood flow in a vessel, comprising:
- a support structure, self-expandable from a reduced cross-section for transluminal navigation to an enlarged cross-section for occluding a vessel, the support structure defining a concave occlusive component and an anchoring component separated by a neck component;
- the anchoring component comprising a ring of cells, each cell comprising a node that is closest to the neck component, the nodes being staggered such that each node is circumferentially and longitudinally offset from the node of a circumferentially adjacent cell and alternating nodes are longitudinally aligned with each other.
Dependencies are inferred from the claim text.