Folded aneurysm treatment device and delivery method
AssigneeDePuy Synthes Products, Inc.
InventorsLacey Gorochow, Juan Lorenzo
Life of this patent
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Abstract
Devices can generally include an implant having a braided section that can be implanted in a deployed state such that, in the deployed state, the braided section folds to form an outer occlusive sack extending across a neck of an aneurysm to engage a wall of the aneurysm from within a sac of the aneurysm and an inner occlusive sack forming a trough nested within the outer occlusive sack. The implant can be closed at one or more of the braid ends to define a substantially enclosed bowl-shaped volume.
Claims14
A device for occluding an aneurysm comprising:
- an implant movable from a collapsed state to a deployed state, the implant comprising a proximal end, a distal end, and a braided segment forming a substantially continuous braided structure between the proximal end and the distal end,
- wherein in the deployed state, the implant comprises:
- an outer occlusive sack extending from the proximal end of the implant and capable of occluding an aneurysm neck;
- an inner occlusive sack extending form the distal end of the implant and forming a trough within the outer occlusive sack;
- and
- a fold in the braided segment positioned between the outer occlusive sack and the inner occlusive sack,
- wherein the implant is capable of anchoring within the aneurysm such that a majority of a sac of the aneurysm is unoccupied by a substantially enclosed volume defined by the implant in the deployed state between the outer occlusive sack and the inner occlusive sack,
- wherein the braided segment comprises a memory shape material, the braided segment comprising a first, predetermined shape and a second, deformed shape,
- wherein the braided segment is in the second, deformed shape when the implant is in the collapsed state, and wherein the braided segment moves to a third, deployed shape when the implant is in the deployed state, the third, deployed shape based at least in part on the predetermined shape and a curvature of an aneurysm wall,
- wherein, in the first, predetermined shape, the fold defines an annular ridge,
- wherein the implant further comprising a radiopaque marker band encircling the distal end of the implant, and
- wherein, in the first, predetermined shape, the radiopaque marker band extends approximate a plane defined by the annular ridge.
An implant for treating an aneurysm comprising a braided mesh,
- wherein the braided mesh is movable to an implanted configuration, the braided mesh comprising a substantially contiguous surface defining a substantially enclosed, bowl-shaped volume in the implanted configuration, and
- wherein the implant is capable of anchoring within the aneurysm such that a majority of a sac of the aneurysm is unoccupied by the bowl-shaped volume,
- wherein the braided mesh comprises a memory shape material, the braided mesh comprising a first, predetermined shape and a second, deformed shape, wherein the braided mesh is in the second, deformed shape is sized to traverse vasculature,
- wherein the braided mesh moves to a third, deployed shape when the implant is in a deployed state, the third, deployed shape based at least in part on the predetermined shape and a curvature of an aneurysm wall,
- wherein the implant further comprising a radiopaque marker band encircling a distal end of the implant within a trough of the bowl-shaped volume, and
- wherein, in the first, predetermined shape, the radiopaque marker band extends approximate a plane defined by an annular ridge of the bowl-shaped volume.
Dependencies are inferred from the claim text.