Stretch-resistant vaso-occlusive devices with distal anchor link
Disclosed herein are vaso-occlusive devices for forming occluding the vasculature of a patient. More particularly, disclosed herein are vaso-occlusive devices comprising a stretch-resistant member including at least one anchor link. Also disclosed are methods of making and using these devices.
1 . A vaso-occlusive device comprising
a core element having a proximal end and a distal end; and
a stretch-resistant member secured to at least two locations to the core element, the stretch-resistant member comprising an anchor link including an eyelet and at least one filament extending through the eyelet of the anchor link.
2 . The vaso-occlusive device of claim 1 , wherein the filament further comprises a knot therein such that the filament creates a loop.
3 . The vaso-occlusive device of claim 1 , wherein the anchor link is secured to the distal end of the core element using one or more adhesives.
4 . The vaso-occlusive device of claim 1 , wherein the filament is secured to the proximal end of the core element using one or more adhesives.
5 . The vaso-occlusive device of claim 4 , further comprising a detachable pusher wire and wherein the filament is secured to the distal end of the pusher wire.
6 . The vaso-occlusive device of claim 1 , wherein the anchor link comprises a metal.
7 . The vaso-occlusive device of claim 6 , wherein the metal comprises platinum.
8 . The vaso-occlusive device of claim 1 , wherein the anchor link comprises a polymer.
9 . The vaso-occlusive device of claim 1 , wherein the filament comprises one or more polymers.
10 . The vaso-occlusive device of claim 9 , wherein the polymer comprises a suture material.
11 . The vaso-occlusive device of claim 1 , wherein the core element defines a lumen and the stretch-resistant member extends at least partially through the lumen.
12 . The vaso-occlusive device of claim 1 , wherein the core element comprises a wire formed into a helically wound primary shape.
13 . The vaso-occlusive device of claim 1 , where the core element has a secondary shape that self-forms upon deployment.
14 . The vaso-occlusive device of claim 12 , where the secondary shape is selected from the group consisting of cloverleaf shaped, helically-shaped, figure-8 shaped, flower-shaped, vortex-shaped, ovoid, randomly shaped, and substantially spherical.
15 . The vaso-occlusive device of claim 1 , wherein the core element comprises a metal.
16 . The vaso-occlusive device of claim 15 , wherein the metal is selected from the group consisting of platinum, rhodium, gold, tungsten and alloys thereof.
17 . The vaso-occlusive device of claim 16 , wherein the metal comprises a nickel-titanium alloy.
18 . The vaso-occlusive device of claim 1 , further comprising a detachment junction.
19 . The vaso-occlusive device of claim 18 , wherein the detachment junction is electrolytically detachable.
20 . A method of at least partially occluding an aneurysm, the method comprising the steps of introducing a vaso-occlusive assembly according to claim 1 into the aneurysm and detaching the core element from the detachment junction, thereby deploying the core element into the aneurysm.