Vaso-occlusive devices comprising complex-shape proximal portion and smaller diameter distal portion

• US 20060100661A1
• Filed: 11/09/2005
• Published: 05/11/2006
• Est. Priority Date: 11/09/2004
• Status: Active Grant

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Teoh, Clifford, Jaeger, Kevin M.
• Granted Patent: US 9,055,948 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• 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 17/12145 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61B 2017/12063 electrolytically detachable
• CPC Class Codes: A61L 31/022 Metals or alloys

Abstract

This is a device for occluding a space within the body. In particular, the device comprises a proximal portion having a complex, three-dimensional shape and a distal portion, where the diameter of the shape defined by the distal portion is smaller than the diameter of the shape defined by the proximal portion. The devices may be placed in a desired site within a mammal and are useful in occluding devices.

Claims

1. A vaso-occlusive device comprising

(i) a proximal portion having a complex, three-dimensional relaxed configuration and a first overall diameter in the relaxed configuration and

(ii) a distal portion having a second overall diameter, wherein the second overall diameter is less than the first overall diameter.

2. The device of claim 1, wherein the distal portion comprises a two-dimensional configuration.

3. The device of claim 2, wherein the distal portion comprises a loop.

4. The device of claim 2, wherein the distal portion comprises a J-shape.

9. The device of claim 1, further comprising a severable junction.

10. The device of claim 9, wherein the severable junction is detachably connected to a delivery mechanism.

11. The device of claim 9, wherein the severable junction is selected from the group consisting of an electrolytically detachable junction adapted to detach by imposition of a current, a mechanically detachable junction adapted to detach by movement or pressure, a thermally detachable junction adapted to detach by localized delivery of heat to the junction, a radiation detachable junction adapted to detach by delivery of electromagnetic radiation to the junction and combinations thereof.

12. A method of occluding a body cavity comprising the step of introducing a vaso-occlusive device according to claim 1 into the body cavity.

13. The method of claim 12, wherein the body cavity is an aneurysm.

5. The device of 1, wherein the second overall diameter is at least 10% smaller than the first overall diameter.

6. The device of claim 5, wherein the second overall diameter is at least 25% smaller than the first overall diameter.

7. The device of claim 5, wherein the second overall diameter is at least 50% smaller than the first overall diameter.

8. The device of claim 5, wherein the second overall diameter is at least 75% smaller than the first overall diameter of the proximal portion.