Vaso-occlusive devices with attachment assemblies for stretch-resistant members
Disclosed herein are vaso-occlusive devices for forming occluding the vasculature of a patient. More particularly, disclosed herein are vaso-occlusive devices comprising an implantable device, an attachment assembly and a stretch-resistant member secured to the attachment assembly and to the implantable device. Also disclosed are methods of making and using these devices.
1 . A vaso-occlusive device comprising
an implantable device having a proximal end and a distal end;
an attachment assembly having proximal and distal ends, the attachment assembly disposed at or near the proximal end of the implantable device;
at least one stretch-resistant member secured to the implantable device and the attachment assembly.
2 . The vaso-occlusive device of claim 1 , wherein the attachment assembly comprises at least one lumen therein and wherein at least one stretch-resistant member extends through the lumen of the attachment assembly.
3 . The vaso-occlusive device of claim 2 , wherein the stretch-resistant member comprises at least one filament.
4 . The vaso-occlusive device of claim 1 , wherein the stretch-resistant member is secured to the proximal or distal end of the attachment assembly.
5 . The vaso-occlusive device of claim 1 , wherein the stretch-resistant member is secured to the proximal and distal ends of the attachment assembly.
6 . The vaso-occlusive device of claim 4 , wherein the stretch-resistant member is secured to the attachment assembly by knotting, adhesive or other bonding.
7 . The vaso-occlusive device of claim 1 , wherein the attachment assembly comprises a metal.
8 . The vaso-occlusive device of claim 7 , wherein the metal comprises platinum.
9 . The vaso-occlusive device of claim 1 , wherein the stretch-resistant member comprises a polymer.
10 . The vaso-occlusive device of claim 9 , wherein the polymer comprises a suture material.
11 . The vaso-occlusive device of claim 1 , the implantable device defines a lumen and the attachment assembly extends at least partially into the lumen of the implantable device.
12 . The vaso-occlusive device of claim 11 , wherein the attachment assembly is secured to the implantable device.
13 . The vaso-occlusive device of claim 1 , wherein the implantable device comprises a wire formed into a helically wound primary shape.
14 . The vaso-occlusive device of claim 1 , wherein the implantable device has a secondary shape that self-forms upon deployment.
15 . The vaso-occlusive device of claim 14 , wherein 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.
16 . The vaso-occlusive device of claim 1 , wherein the implantable device comprises a metal.
17 . The vaso-occlusive device of claim 16 , wherein the metal is selected from the group consisting of platinum, rhodium, gold, tungsten and alloys thereof.
18 . The vaso-occlusive device of claim 17 , wherein the metal comprises a nickel-titanium alloy.
19 . The vaso-occlusive device of claim 1 , further comprising a detachment junction.
20 . The vaso-occlusive device of claim 19 , wherein the detachment junction is electrolytically or thermally detachable.
21 . An assembly comprising:
a vaso-occlusive device according to claim 1 ; and
a delivery device,
wherein the vaso-occlusive device is secured to the delivery device prior to deployment.
22 . A method of at least partially occluding an aneurysm, the method comprising the steps of introducing a vaso-occlusive device according to claim 1 into the aneurysm and detaching the implantable device from the detachment junction, thereby deploying the implantable device into the aneurysm.
23 . A method of at least partially occluding an aneurysm, the method comprising the steps of introducing a vaso-occlusive assembly according to claim 21 into the aneurysm and detaching the implantable device from the detachment junction, thereby deploying the implantable device into the aneurysm.