Occlusion stent

Patent metadata

Field	Value
Publication number	US-9320525-B2
Application number	US-55589109-A
Country	US
Kind code	B2
Filing date	Sep 9, 2009
Priority date	Dec 3, 2008
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

A device for occluding a target body lumen, comprises a wire structure defining a wire structure lumen extending therethrough and movable between a reduced diameter insertion configuration and an expanded diameter deployed configuration and a basket structure extending across the wire structure lumen and including therein a cell growth promoting agent to promote cell growth across the wire structure lumen to occlude the target body lumen.

First claim

What is claimed is:

1. A device for occluding a target body lumen, comprising:
a wire structure defining a wire structure lumen extending therethrough and movable between a reduced diameter insertion configuration and an expanded diameter deployed configuration; and
a basket structure extending across the wire structure lumen and including therein a cell growth promoting agent to promote cell growth across the wire structure lumen to occlude the target body lumen,
wherein the basket structure is formed on an inner surface of the wire structure and includes struts that are interwoven with the wire structure to form pockets that hold the cell growth promoting agent.

2. The device of claim 1 , wherein the basket structure is attached to substantially diametrically opposed portions of the wire structure across one of a proximal and a distal end of the wire structure lumen.

3. The device of claim 1 , wherein the basket structure is formed of the cell growth promoting agent.

4. The device of claim 1 , wherein the basket structure is attached to at least one portion of the wire structure, the basket structure expanding to extend across the wire structure lumen.

5. The device of claim 1 , wherein the wire structure is formed from a series of wire members, each wire member extending around an outer perimeter of the device, wherein portions of the adjacent wire members are connected to one another.

6. The device of claim 5 , wherein the basket structure includes four prongs such that the basket structure is attached to the wire member by two of the prongs on opposite sides thereof.

7. The device of claim 1 , wherein the basket structure is attached to the wire structure via one of welding, soldering or an adhesive.

8. The device of claim 1 , wherein the basket structure is balloon-shaped and attached to the wire structure via two prongs.

9. The device of claim 1 , wherein the basket structure includes platinum coils for visibility during deployment.

10. The device of claim 9 , wherein the platinum coils are wrapped in fibers of the cell growth promoting agent.

11. The device of claim 1 , wherein the cell growth promoting agent is one of ultra high molecular weight polyethylene fibers, polyester fibers, copper fibers, copper barbs, collagen fibers and a porous polymer.

12. The device of claim 11 , wherein the cell growth promoting agent is plasma treated.

13. The device of claim 1 , wherein fibers of the cell growth promoting agent is treated with a fibrous tissue growth promoting agent that increases scarring and encapsulation.

14. The device of claim 13 , wherein the fibrous tissue growth promoting agent is one of silver salts PMMA, formaldehyde and alcohol.

15. The device of claim 1 , wherein the wire structure consists of Nitinol such that the wire structure self-expands in the deployed configuration when triggered by a threshold value of heat within the body.

16. The device of claim 1 , wherein the basket structure consists of one of a metallic material, a polymeric material and a super-absorbent material.

17. A method for occluding a target body lumen, comprising:
inserting to a target site within the body lumen a wire structure defining a wire structure lumen extending therethrough while maintaining the wire structure in a reduced diameter insertion configuration, the wire structure including a basket structure extending across the wire structure lumen and including therein a cell growth promoting agent to promote cell growth across the wire structure lumen to occlude the body lumen, wherein the basket structure is formed on an inner surface of the wire structure and includes struts that are interwoven with the wire structure to form pockets that hold the cell growth promoting agent; and
expanding the wire structure to an expanded diameter deployed configuration in which the wire structure engages the wall of the body lumen.

18. The method of claim 17 , wherein the body lumen is a fallopian tube.

Assignees

• Khieu Aaron
• Horn Daniel James
• Vrba Anthony C
• Blix John
• Harrison Kent
• Ley Timothy J
• Boston Scient Scimed Inc

Inventors

• Khieu Aaron
• Horn Daniel James
• Vrba Anthony C
• Blix John
• Harrison Kent
• Ley Timothy J

Classifications

• A61B17/1214

  Coils or wires · CPC title

• A61B17/12168

  having a mesh structure (A61B17/1214 takes precedence) · CPC title

• A61B17/12109

  in a blood vessel · CPC title

• A61B17/12022 Primary

  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 title

• A61B17/1215

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