Methods and systems for aneurysm treatment using filling structures
AssigneeEndologix, Inc.
InventorsMichael A. Evans, Gwendolyn A. Watanabe, Amy Lee, Steven L. Herbowy
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Abstract
Aneurysms are treated by placing a scaffold across an aneurysmal sac to provide a blood flow lumen therethrough. An aneurysmal space surrounding the scaffold is filled with one or more expandable structures which are simultaneously or sequentially expanded to fill the aneurysmal space and reduce the risk of endoluminal leaks and scaffold migration. The expandable structures are typically inflatable and delivered by delivery catheter, optionally with an inflation tube or structure attached to the expandable structure.
Claims22
A system for treating an aneurysm in a blood vessel, said system comprising:
- a scaffold adapted to be placed in the aneurysm;
- a first fillable bag adapted to be expanded by filling a fillable space of the fillable bag with a non-fluid expansion medium to at least partly fill an aneurysmal space between an outside of the scaffold and an inside surface of the aneurysm;
- and
- a first delivery catheter adapted to:
- be positioned outside the scaffold,
- deliver the first fillable bag to the aneurysmal space between the outside of the scaffold and the inside surface of the aneurysm,
- deliver the expansion medium to fill the first fillable bag through the blood vessel when the fillable bag is positioned in the aneurysmal space, and
- detach the first fillable bag after expansion such that the expanded fillable bag remains within the aneurysmal space after removal of the catheter from the blood vessel;
- wherein the first fillable bag is configured to conform to the scaffold in the expanded state, and
- wherein the first fillable bag is configured to form a structure having a C-shaped cross-section when filled.
A system for treating an aneurysm in a blood vessel, said system comprising:
- a scaffold adapted to be placed in the aneurysm;
- a first fillable bag adapted to be expanded by filling a fillable space of the fillable bag with a non-fluid expansion medium to at least partly fill an aneurysmal space between an outside of the scaffold and an inside surface of the aneurysm;
- and
- a first delivery catheter adapted to:
- be positioned outside the scaffold,
- deliver the first fillable bag to the aneurysmal space between the outside of the scaffold and the inside surface of the aneurysm,
- deliver the expansion medium to fill the first fillable bag through the blood vessel when the fillable bag is positioned in the aneurysmal space, and
- detach the first fillable bag after expansion such that the expanded fillable bag remains within the aneurysmal space after removal of the catheter from the blood vessel;
- wherein the first fillable bag is configured to form a structure having an axial channel along its entire axial length and a C-shaped cross-section when filled.
Dependencies are inferred from the claim text.