Detachable aneurysm neck bridge

• US 20030171739A1
• Filed: 12/13/2002
• Published: 09/11/2003
• Est. Priority Date: 09/04/1998
• Status: Active Grant

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Doan, My, Murphy, Richard, Tran, Tri, Nguyen, Kim, Wallace, Michael P., Ho, Hanh, Abrams, Robert M., Carrison, Harold F.
• Granted Patent: US 7,410,482 B2
• Time in Patent Office: Days
• US Class Current: 606/1
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/1214 Coils or wires
• CPC Class Codes: A61B 17/12168 having a mesh structure A61B17/1214 takes precedence
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12063 electrolytically detachable
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

Abstract

In one embodiment, a neck bridge for bridging the neck of an aneurysm includes a junction region, a number of radially extending array elements attached to the junction region, and a cover attached to one or both of the junction region and an array element. The array elements are configured to be positioned within the aneurysm after the neck bridge is deployed from a delivery device. In a second embodiment, the neck bridge includes a junction region and a braided or mesh-like structure secured to the junction region. The braided or mesh-like structure is made from an elastic material.

Claims

1. A device for bridging a neck of an aneurysm, comprising:

a junction region;

one or more radially extending array elements secured to the junction region, each array element having an unfolded shape and a delivery shape; and

a cover attached to the junction region, an array element, or both, wherein the cover extends over the delivery shape of one of the array elements.

2. The device of claim 1, wherein the junction region comprises a tubular section.

3. The device of claim 1, wherein each array element comprises a wire having a curvilinear shape.

4. The device of claim 1, wherein each array element comprises a wire loop.

5. The device of claim 4, each array element having first and second ends attached to the junction region.

6. The device of claim 1, further comprising a tip, wherein array element comprises a wire having a first end attached to the tip and a second end attached to the junction region.

7. The device of claim 6, the tip having an opening through which a vaso-occlusive device or occlusion fluid may be delivered.

8. The device of claim 1, further comprising a radio-opaque marker carried on an array element.

9. The device of claim 8, wherein the radio-opaque marker is carried at a perimeter of the device.

10. The device of claim 1, wherein the array elements each comprises a resilient, substantially elastic material.

11. The device of claim 1, wherein the cover comprises a plurality of loops.

12. The device of claim 1, wherein the cover comprises an elastic material.

13. The device of claim 1, wherein the cover comprises polymer.

14. The device of claim 1, wherein the cover comprises polyester.

15. The device of claim 11, wherein each loop comprising a fiber having first and second ends attached to the junction region.

16. The device of claim 1, wherein the cover is attached to the array elements by an adhesive.

17. The device of claim 1, wherein the array elements are inter-woven with the cover.

18. The device of claim 1, wherein the cover has a top side and a bottom side, and wherein the array elements are positioned between the top side and the bottom side of the cover.

19. The device of claim 18, further comprising a disk positioned between the top side and the bottom side of the cover.

20. The device of claim 1, further comprising an elongate member detachably coupled to the junction region, the elongate member having a proximal end and a distal end.

21. The device of claim 20, wherein the elongate member has a tubular cross section.

22. The device of claim 20, wherein the elongate member comprises a core wire.

23. The device of claim 20, wherein the elongate member carries a radio-opaque marker at one or both of its proximal end and distal end.

24. The device of claim 1, wherein the cover is attached only to one or more of the array elements.

25. The device of claim 1, wherein the cover is attached only to the junction.

26. A device for bridging a neck of an aneurysm, comprising:

a junction region; and

a radially extending braided structure secured to the junction region, the braided structure made from an elastic material and having a delivery shape and an unfolded shape, the braided structure configured to be placed within the aneurysm.

27. The device of claim 26, wherein the junction region comprises a tubular section.

28. The device of claim 26, wherein the braided structure comprises a plurality of loops.

29. The device of claim 28, each loop comprising a fiber having first and second ends attached to the junction region.

30. The device of claim 29, the junction region including a first portion and a second portion, the first end of each loop attached to the first portion, the second end of each loop attached to the second portion.

31. The device of claim 26, further comprising a radio-opaque marker carried on the braided structure.

32. The device of claim 26, wherein the braided structure is plated or coated with a radio-opaque material.

33. The device of claim 26, wherein the braided structure comprises a radio-opaque material.

34. The device of claim 26, further comprising an elongate member detachably coupled to the junction region, the elongate member having a proximal end and a distal end.

35. The device of claim 34, wherein the elongate member has a tubular cross section.

36. The device of claim 35, wherein the elongate member comprises a core wire.

37. The device of claim 34, wherein the elongate member carries a radio-opaque marker at one or both of its proximal end and distal end.