Percutaneously deployed vascular valves

• US 8,177,837 B2
• Filed: 01/18/2011
• Issued: 05/15/2012
• Est. Priority Date: 04/01/2003
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Case, Brian C., Agnew, Charles W., Flagle, Jacob A.
• Primary Examiner(s): Stewart, Alvin
• Assistant Examiner(s): Sharma, Yashita
• Application Number:
  US13/008,629
• Publication Number:
  US 20110112621A1
• Time in Patent Office: 483 Days
• Field of Search: 623/1.24, 623/1.32, 623/1.36, 623/2.12, 623/2.13, 623/2.16
• US Class Current: 623/2.12
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2002/068 Modifying the blood flow model, e.g. by diffuser or deflector
• CPC Class Codes: A61F 2002/8483 Barbs
• CPC Class Codes: A61F 2210/0076 multilayered, e.g. laminated structures
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/0034 D-shaped
• CPC Class Codes: A61F 2230/0095 Saddle-shaped

Abstract

Described are percutaneous vascular valves free of attached support structures and deployment systems and methods for providing attachment of the valves within a vascular vessel.

Claims

1. A percutaneous vascular valve, comprising:

a stentless vascular valve body having at least one flexible member for restricting blood flow though a vascular vessel, the flexible member having a central portion for extending out into a lumen of the vascular vessel and an edge which bounds the central portion for contacting a wall of a vascular vessel;

said edge adapted to attach to said wall, wherein said edge includes an array of vessel wall-penetrating elements two or more vessel wall-penetrating elements wide and having vessel wall-penetrating elements arranged longitudinally and generally laterally with respect to one another along said edge so as to provide said array extending along a first region of the edge and along a second region of the edge with said central portion extending therebetween and being free of vessel wall-penetrating elements.

2. The valve of claim 1, wherein said vessel wall-penetrating elements include barbs.

3. The valve of claim 2, wherein said barbs have diameters of up to about 0.010 inches.

4. The valve of claim 1, wherein said flexible member comprises a remodelable material.

5. The valve of claim 1, wherein said flexible member comprises an extracellular matrix.

6. The valve of claim 1, wherein the stentless vascular valve body comprises at least two leaflets.

7. The valve of claim 1, wherein said edge is configured to extend longitudinally along and at least partially circumferentially around the vessel wall.

8. The valve of claim 1, wherein said edge is a reinforced edge.

9. The valve of claim 8, wherein said reinforced edge has a thickness greater than the central portion of said flexible member.

10. The valve of claim 3, wherein said diameters are at least about 0.005 inches.

11. The valve of claim 10, wherein said barbs have lengths ranging from about 0.01 inches to about 0.10 inches.

12. A percutaneous vascular valve, comprising:

a vascular valve body free of any support structure and having at least one movable member for restricting blood flow through a vascular vessel, the movable member having a central portion for extending out into a lumen of the vascular vessel and an edge which bounds the central portion for contacting a wall of a vascular vessel;

said edge adapted to attach to said wall, wherein said edge includes a multitude of barbs that are arranged longitudinally and generally laterally with respect to one another in a swath of barbs running along said edge, said swath of barbs being two or more barbs wide and extending along a first region of the edge and along a second region of the edge with said central portion extending therebetween and being free of barbs.

13. A percutaneous vascular valve, comprising:

a stentless vascular valve body having at least one flexible member for restricting blood flow, the flexible member having an edge for contacting a wall of a vascular vessel, said edge including a first region and a second region, and said flexible member including a central portion for extending out into a lumen of the vascular vessel with said central portion extending between said first region and said second region, wherein said edge is adapted to attach to said wall and wherein said first region and said second region each includes an array of vessel wall-penetrating elements that is two or more vessel wall-penetrating elements wide.

14. The valve of claim 13, wherein said array is more than two vessel wall-penetrating elements wide.

15. The valve of claim 13, wherein said array includes an irregular array of barbs.

16. The valve of claim 13, wherein said vessel wall-penetrating elements include barbs with diameters ranging from about 0.0005 inches to about 0.100 inches.

17. The valve of claim 13, wherein said vessel wall-penetrating elements include barbs with diameters of up to about 0.010 inches.

18. The valve of claim 17, wherein said diameters are at least about 0.005 inches.

19. The valve of claim 13, wherein said vessel wall-penetrating elements include barbs with lengths ranging from about 0.001 inches to about 0.50 inches.

20. The valve of claim 13, wherein said vessel wall-penetrating elements include barbs with lengths of up to about 0.100 inches.

21. The valve of claim 20, wherein said lengths are at least about 0.01 inches.

22. The valve of claim 21, wherein vessel wall-penetrating elements include barbs with diameters ranging from about 0.005 inches to about 0.010 inches.

23. The valve of claim 20, wherein said vessel wall-penetrating elements include barbs with diameters microbarbs have a diameter ranging from about 0.005 inches to about 0.010 inches.