Systems and methods for enclosing an anatomical opening, including shock absorbing aneurysm devices
First Claim
1. An aneurysm device endovascularly deliverable to a site proximate to an aneurysm near a parent artery with bifurcating downstream branches, the aneurysm device comprising:
- a closure structure comprising a distal-facing aspect configured to at least partially occlude the aneurysm;
a supplemental stabilizer connected to the closure structure, the supplemental stabilizer configured to reside in the parent artery and press outward against a luminal wall thereof;
a junction between the closure structure and the supplemental stabilizer; and
a shock absorbing structure coupled to a proximal end portion of the closure structure and to a distal end portion of the supplemental stabilizer, comprising;
a first spring arm comprising a first spring arm proximal end and a first spring arm distal end; and
a second spring arm comprising a second spring arm proximal end and a second spring arm distal end;
wherein the first and second spring arm proximal ends are coupled to each other at the junction,wherein the first spring arm and the second spring arm extend away from the junction at an angle to each other,wherein the first and the second spring arms at least partially surround an aperture,wherein the first and the second spring arms act as a leaf spring,wherein the first and the second spring arm distal ends meet at a distally-extending portion of the shock absorbing structure to form a generally V-shaped arrangement and the distally-extending portion is proximate to a notch in the generally V-shaped arrangement, andwherein the proximal end portion of the closure structure coupled to the distally-extending portion of the shock absorbing structure.
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Accused Products
Abstract
The present technology relates to systems and methods for enclosing an anatomical opening, including shock absorbing aneurysm devices. In some embodiments, the systems include a closure structure comprising a distal-facing aspect configured to at least partially occlude the aneurysm and a supplemental stabilizer connected to the closure structure. The supplemental stabilizer can be configured to reside in a parent artery and press outward against a luminal wall thereof. The systems can further include a shock absorbing structure coupled to a proximal end portion of the closure structure and to a distal end portion of the supplemental stabilizer. The shock absorbing structure can inhibit movement or dislodgement of the closure structure or the supplemental stabilizer relative to the aneurysm.
314 Citations
12 Claims
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1. An aneurysm device endovascularly deliverable to a site proximate to an aneurysm near a parent artery with bifurcating downstream branches, the aneurysm device comprising:
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a closure structure comprising a distal-facing aspect configured to at least partially occlude the aneurysm; a supplemental stabilizer connected to the closure structure, the supplemental stabilizer configured to reside in the parent artery and press outward against a luminal wall thereof; a junction between the closure structure and the supplemental stabilizer; and a shock absorbing structure coupled to a proximal end portion of the closure structure and to a distal end portion of the supplemental stabilizer, comprising; a first spring arm comprising a first spring arm proximal end and a first spring arm distal end; and a second spring arm comprising a second spring arm proximal end and a second spring arm distal end; wherein the first and second spring arm proximal ends are coupled to each other at the junction, wherein the first spring arm and the second spring arm extend away from the junction at an angle to each other, wherein the first and the second spring arms at least partially surround an aperture, wherein the first and the second spring arms act as a leaf spring, wherein the first and the second spring arm distal ends meet at a distally-extending portion of the shock absorbing structure to form a generally V-shaped arrangement and the distally-extending portion is proximate to a notch in the generally V-shaped arrangement, and wherein the proximal end portion of the closure structure coupled to the distally-extending portion of the shock absorbing structure. - View Dependent Claims (2, 3, 4)
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5. A system for treating an aneurysm, the system comprising:
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a distal framework portion comprising a distal-facing aspect configured to enclose the aneurysm; a proximal support framework connected to the distal framework portion, the support framework configured to reside in a parent artery and biased to press outward against a luminal wall thereof; and a spring coupled to the distal framework portion and proximally movable relative to the distal framework portion, wherein the spring comprises; a first spring arm comprising a first spring arm proximal end and a first spring arm distal end; a second spring arm comprising a second spring arm proximal end and a second spring arm distal end; and a junction between the distal framework portion and the proximal support framework, wherein the first spring arm and the second spring arm extend away from the junction and toward the distal framework portion such that the first spring arm and the second spring arm have a generally V-shaped arrangement formed from the first and the second spring arm proximal ends meeting at the junction and the first and the second spring arm distal ends meeting at the distal framework portion, and wherein a proximal portion of the distal framework portion resides proximate to a notch in the generally V-shaped arrangement between the first and second spring arms. - View Dependent Claims (6, 7, 8)
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9. A method of treating an aneurysm located at a site within a blood vessel, the method comprising:
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positioning a framework comprising a distal portion and a proximal portion at a site proximate to the aneurysm; applying a force outward from the proximal portion of the framework against a luminal wall of the blood vessel; absorbing movement of the framework relative to the blood vessel with a generally V-shaped spring connecting the distal portion and the proximal portion of the framework; and disposing a section of the distal portion within a notch in the generally V-shaped spring, wherein the generally V-shaped spring comprises a first spring arm and a second spring arm;
wherein the first spring arm comprises a first spring arm proximal end and a first spring arm distal end;
wherein the second spring arm comprises a second spring arm proximal end and a second spring arm distal end,wherein the first and the second spring arm proximal ends are coupled at a junction;
wherein the first spring arm and second spring arm extend away from the junction at an angle to each other,wherein the first and the second spring arms at least partially surround an aperture, wherein the first and the second spring arms act as a leaf spring, and wherein the first and the second spring arm distal ends meet at a distally-extending portion to form a generally V-shaped arrangement and the distally-extending portion is proximate to a notch in the generally V-shaped arrangement. - View Dependent Claims (10, 11, 12)
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Specification