Devices, systems and methods for enclosing an anatomical opening
The present technology is directed generally to devices, systems, and methods for enclosing anatomical openings. In several embodiments, an aneurysm device is endovascularly deliverable to a site proximate to an arterial aneurysm. The aneurysm device includes a closure structure having a distal-facing aspect configured to at least partially occlude the aneurysm and a proximal-facing aspect configured to arch over lumina of an artery. The device further includes a supplemental stabilizer connected to the closure structure and configured to reside in the artery and press outward against a luminal wall thereof. In some embodiments, the device can also include a barrier spanning at least a portion of the distal-facing aspect of the closure structure and configured to further occlude a neck of the aneurysm. In further embodiments, the closure structure can be configured to restrict and/or divert flow to or from the aneurysm.
1. An aneurysm device endovascularly deliverable to a site proximate to an aneurysm, the aneurysm device comprising:
an arched closure structure comprising a distal-facing aspect configured to at least partially occlude the aneurysm, and a proximal-facing aspect configured to arch over lumina of an artery, wherein the arch is configured to span unobtrusively over the lumina and forms no incursion into the vascular flow path;
a supplemental stabilizer connected to the closure structure, the supplemental stabilizer configured to reside in the artery and press outward against a luminal wall thereof; and
a barrier spanning at least a portion of the distal-facing aspect of the closure structure, the barrier having an aperture therein configured to provide access to the aneurysm, wherein the aperture is sized and shaped to allow passage of a catheter therethrough.
2. The aneurysm device of claim 1 wherein the barrier comprises a permeable or semi-permeable membrane configured to restrict or inhibit flow to or from the aneurysm.
3. The aneurysm device of claim 1 wherein the barrier comprises overlapping layers of sheets or panels.
4. The aneurysm device of claim 1 wherein the closure structure comprises a plurality of laterally opposing supports, each support individually-covered with a barrier material having an aperture therein.
5. The aneurysm device of claim 1 wherein the distal-facing aspect of the closure structure and the barrier form a complex curved surface.
6. The aneurysm device of claim 5 wherein the complex curved surface comprises a hyperbolic paraboloid form.
7. The aneurysm device of claim 1 wherein the closure structure comprises three sets of laterally opposing supports, the supports comprising inner, middle, and outer supports, and wherein the barrier material extends exclusively between the inner and middle supports.
8. The aneurysm device of claim 1 wherein the closure structure, supplemental stabilizer, and aperture comprise a longitudinal axis of the device.
9. An aneurysm device endovascularly deliverable to a site proximate to an aneurysm, the aneurysm device comprising:
a closure structure comprising a distal-facing aspect configured to at least partially occlude the aneurysm, and a proximal-facing aspect configured to arch over lumina of an artery;
a supplemental stabilizer connected to the closure structure, the supplemental stabilizer configured to reside in the artery and press outward against a luminal wall thereof; and
a barrier spanning at least a portion of the distal-facing aspect of the closure structure, the barrier having an aperture therein configured to provide access to the aneurysm,
wherein the closure structure further comprises three sets of laterally opposing supports, the supports comprising inner, middle, and outer supports, and wherein the barrier extends exclusively between the inner and middle supports.