Vaso-occlusive devices

Patent metadata

Field	Value
Publication number	US-10159490-B2
Application number	US-201615148872-A
Country	US
Kind code	B2
Filing date	May 6, 2016
Priority date	May 8, 2015
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A vaso-occlusion system for occluding an aneurysm includes a delivery catheter having a delivery lumen extending therethrough, a pusher member at least partially extending through the delivery lumen, and a vaso-occlusive device loaded within the delivery lumen, the vaso-occlusive device comprising an expandable braid formed out of a plurality of elongate braid filaments, the elongate braid elements having respective proximal end portions that are formed into a flexible transition section having a proximal end portion attached to a distal end of the pusher member and/or to an elongate central member coupled to, and extending distally of, the pusher member.

First claim

What is claimed is:

1. A vaso-occlusion system for occluding an aneurysm, comprising:
a delivery catheter having a delivery lumen extending therethrough;
a pusher member at least partially extending through the delivery lumen; and
a vaso-occlusive device loaded within the delivery lumen, the vaso-occlusive device comprising an expandable braid formed out of a plurality of elongate braid filaments, the elongate braid filaments having respective proximal end portions that are formed into a flexible transition section having a proximal end portion attached to a distal end of the pusher member and/or to an elongate central member coupled to, and extending distally of, the pusher member,
wherein in the flexible transition section, the proximal end portions of the elongate braid filaments are unbraided to form straight filaments that are wound into a helical formation that spirals around the pusher member and/or elongate central member.

2. The vaso-occlusion system of claim 1 , wherein the proximal end portions of the elongate braid filaments comprising the flexible transition section are heat seat into the helical formation.

3. The vaso-occlusion system of claim 1 , the vaso-occlusive device comprising the elongate central member to which the flexible transition section is attached.

4. The vaso-occlusion system of claim 3 , wherein the elongate central member comprises a coil.

5. The vaso-occlusion system of claim 3 , wherein the proximal end portion of the flexible transition section is fused or otherwise attached to the elongate central member proximate a junction formed with the pusher member.

6. The vaso-occlusion system of claim 3 , wherein the expandable braid comprises a tubular body portion.

7. The vaso-occlusion system of claim 6 , wherein the elongate central member extends through a lumen formed by the tubular body portion.

8. A vaso-occlusion system for occluding an aneurysm, comprising:
a delivery catheter having a delivery lumen extending therethrough;
a pusher member at least partially extending through the delivery lumen; and
a vaso-occlusive device loaded within the delivery lumen, the vaso-occlusive device comprising an elongate central member coupled to, and extending distally of, the pusher member, and an expandable braid formed out of a plurality of elongate braid filaments having respective proximal end portions that are formed into a flexible transition section having a proximal end portion attached to a distal end of the elongate central member,
wherein the expandable braid comprises a tubular body portion, and
wherein the elongate central member extends alongside the tubular body portion.

9. The vaso-occlusion system of claim 8 , wherein the elongate central member is attached to the tubular body portion at one or more axially spaced attachment locations.

10. The vaso-occlusion system of claim 9 , wherein, at each attachment location, the elongate central member is attached to the tubular body portion by one or more respective elongate braid filaments.

11. A vaso-occlusive device, comprising:
an elongate central support member; and
an expandable braid formed out of a plurality of elongate braid filaments, the elongate braid filaments having respective proximal end portions that are formed into a flexible transition section having a proximal end portion attached to the elongate central member,
wherein in the flexible transition section, the proximal end portions of the elongate braid filaments are unbraided to form straight filaments that are wound into a helical formation that spirals around the elongate central member.

12. The vaso-occlusive device of claim 11 , wherein the proximal end portions of the elongate braid filaments comprising the flexible transition section are heat seat into the helical formation.

13. The vaso-occlusive device of claim 11 , wherein the elongate central member comprises a coil.

14. The vaso-occlusive device of claim 11 , wherein the proximal end portion of the flexible transition section is fused or otherwise attached to the elongate central member proximate a junction formed with a pusher member.

15. The vaso-occlusive device of claim 11 , wherein the expandable braid comprises a tubular body portion, and wherein the elongate central member extends through a lumen formed by the tubular body portion.

16. The vaso-occlusive device of claim 11 , wherein the elongate central member extends alongside the tubular body portion, and wherein the elongate central member is attached to the tubular body portion by one or more respective elongate braid filaments at each of one or more axially spaced attachment locations.

Assignees

• Stryker European Holdings I Llc

Inventors

• Wallace Michael P
• Greenhalgh E Skott

Classifications

• A61B17/1215

  comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated · CPC title

• A61F2/844

  folded prior to deployment · CPC title

• A61B17/12172 Primary

  having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526) · CPC title

• A61F2002/823

  Stents, different from stent-grafts, adapted to cover an aneurysm · CPC title

• A61B17/12109

  in a blood vessel · CPC title