"Bowl-of-Spaghetti" Type Intrasacular Aneurysm Occlusion Device
This invention is a “bowl-of-spaghetti” type intrasacular aneurysm occlusion device including: a catheter; embolic coils; a bowl or cup shaped neck bridge; an opening in the neck bridge through which the coils are inserted into the aneurysm sac; and a closure mechanism which closes the opening after the coils have been inserted into the aneurysm sac. It is a called a “bowl-of-spaghetti” type device because the neck bridge can look like a bowl and the embolic coils can look like spaghetti noodles in the bowl.
1 . A “bowl-of-spaghetti” type intrasacular aneurysm occlusion device comprising:
a longitudinal lumen which is configured into be inserted into a person's vasculature;
one or more longitudinal embolic members which are configured to be delivered through the longitudinal lumen into an aneurysm sac in the person's vasculature;
an expandable proximal member which is configured to be inserted into and expanded within the aneurysm sac, expanding to a diameter which is larger than the maximum diameter of the aneurysm neck;
an opening in the expandable proximal member through which the longitudinal embolic members are inserted into the aneurysm sac; and
a closure mechanism which closes the opening after the longitudinal embolic members have been inserted into the aneurysm sac.
2 . The device in claim 1 wherein the longitudinal lumen is a catheter, the longitudinal embolic members are embolic coils, and the expandable proximal member is a neck bridge.
3 . The device in claim 1 wherein the expandable proximal member self expands within the aneurysm sac.
4 . The device in claim 1 wherein the expandable proximal member expands into an upward-opening-convex shape.
5 . The device in claim 1 wherein the expandable proximal member expands into a bowl or cup shape.
6 . The device in claim 1 wherein the expandable proximal member is a neck bridge.
7 . The device in claim 6 wherein the neck bridge is a braided or woven stent, lattice, mesh, and/or framework.
8 . The device in claim 6 wherein the neck bridge is a 3D printed stent, lattice, mesh, and/or framework.
9 . The device in claim 6 wherein the neck bridge is a multi-layer neck bridge which is made by folding and/or compressing a generally spherical or ellipsoidal stent, lattice, mesh, or framework into a multi-layer bowl or cup shaped stent, lattice, mesh, or framework.
10 . The device in claim 6 wherein the neck bridge is a multi-layer neck bridge which is made by folding and/or compressing a generally spherical or ellipsoidal stent, lattice, mesh, or framework within the aneurysm sac.
11 . The device in claim 6 wherein the neck bridge is a multi-layer neck bridge which is made by folding, twisting, and/or inverting a generally tubular stent, lattice, mesh, or framework into a multi-layer bowl or cup shaped stent, lattice, mesh, or framework.
12 . The device in claim 1 wherein the expandable proximal member expands to a diameter which is at least 10% larger than the maximum diameter of the aneurysm neck.
13 . The device in claim 1 wherein the expandable proximal member expands to a diameter which is at least 85% of the maximum diameter of the aneurysm sac.
14 . The device in claim 1 wherein the expandable proximal member expands to a diameter which is at least 10% larger than the maximum diameter of the aneurysm neck and at least 85% of the maximum diameter of the aneurysm sac.
15 . The device in claim 1 wherein the longitudinal lumen connects to and/or protrudes into the opening in the expandable proximal member.
16 . The device in claim 1 wherein the closure mechanism is remotely-activated by the application of electromagnetic energy.
17 . The device in claim 1 wherein the closure mechanism closes the opening in the expandable proximal member and detaches an embolic longitudinal member which has been inserted into the aneurysm sac.
18 . The device in claim 1 wherein the closure mechanism closes the opening in the expandable proximal member, detaches an embolic longitudinal member which has been inserted into the aneurysm sac, and detaches the longitudinal lumen from the expandable proximal member so that the longitudinal lumen can be withdrawn from the person's vasculature.
19 . A “bowl-of-spaghetti” type intrasacular aneurysm occlusion device comprising:
a catheter which is inserted into a person's vasculature;
one or more embolic coils which are delivered through the catheter into an aneurysm sac;
a neck bridge which expands into a bowl or cup shape within the aneurysm sac, expanding to a diameter which is larger than the maximum diameter of the aneurysm neck;
an opening in the neck bridge through which the coils are inserted into the aneurysm sac; and
a closure mechanism which closes the opening after the coils have been inserted into the aneurysm sac.
20 . A “bowl-of-spaghetti” type method of occluding an aneurysm comprising:
inserting a catheter into a person's vasculature;
inserting a neck bridge on or through the catheter into an aneurysm sac in the person's vasculature;
expanding the neck bridge into a bowl or cup shape within the aneurysm sac, wherein the neck bridge is expanded to a diameter which is larger than the maximum diameter of the aneurysm neck;
inserting one or more embolic coils into the aneurysm through the catheter and through an opening in the neck bridge;
closing the opening in the neck bridge; and
withdrawing the catheter from the person's vasculature.