Riveted stent valve for percutaneous use

• US 7,591,848 B2
• Filed: 04/06/2006
• Issued: 09/22/2009
• Est. Priority Date: 04/06/2006
• Status: Active Grant

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Allen, Jeffrey W.
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US11/278,856
• Publication Number:
  US 20070239273A1
• Time in Patent Office: 1,265 Days
• Field of Search: 623 124- 126, 623 21- 217
• US Class Current: 623/2.17
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2002/30433 using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0041 using additional screws, bolts, dowels or rivets, e.g. connecting screws
• CPC Class Codes: A61F 2230/0054 V-shaped

Abstract

A system and method for treating a vascular condition includes a conduit having an inner wall defining lumen and a replacement valve device. The replacement valve device includes a prosthetic valve connected to an expandable support structure; the expandable support structure includes at least one valve attachment portion and a plurality of valve attachment devices. Each valve attachment portion includes a plurality of struts, each strut having at least one opening for receiving one of the plurality of valve attachment devices.

Claims

1. A vascular valve replacement system, the system comprising:

a replacement valve device, the replacement valve device including a prosthetic valve connected to an expandable support structure, the expandable support structure including at least one valve attachment portion, each valve attachment portion having a plurality of struts, and each strut having at least one opening for receiving a valve attachment device; and

a plurality of valve attachment devices;

wherein the valve attachment device comprises a head portion, a pin portion and a flange portion and wherein the flange portion comprises a shape memory material, the flange portion having a delivery configuration and an attachment configuration.

2. The system of claim 1 wherein the pin portion includes a barb.

3. The system of claim 1 wherein the expandable support structure further comprises a first stent region and a second stent region, the at least one valve attachment portion disposed between the first stent region and the second stent region.

4. The system of claim 3 wherein the first stent region and the second stent region include a plurality of valve end support struts.

5. The system of claim 4 wherein each of the plurality of valve end support struts include at least one opening for receiving one of the plurality of valve attachment devices.

6. The system of claim 1 wherein at least a portion of the valve attachment device comprises a radiopaque material.

7. The system of claim 1 wherein the expandable support structure comprises a self-expanding stent.

8. The system of claim 1 wherein the expandable support structure comprises a balloon expandable stent.

9. A system for treating a vascular condition, comprising:

a conduit operably attached to a vessel, the conduit including an inner wall defining a lumen;

a delivery catheter;

a replacement valve device disposed on the delivery catheter, the replacement valve device including a prosthetic valve connected to an expandable support structure, the expandable support structure including at least one valve attachment portion; and

a plurality of valve attachment devices,

wherein each valve attachment portion includes a plurality of struts, each strut having at least one opening for receiving one of the plurality of valve attachment devices,

wherein the valve attachment device comprises a head portion, a pin portion and a flange portion, and

wherein the pin portion includes a barb for penetrating the inner wall of the conduit.

10. The system of claim 9 wherein the expandable support structure further comprises a first stent region and a second stent region, the at least one valve attachment portion disposed between the first stent region and the second stent region.

11. The system of claim 10 wherein the first stent region and the second stent region include a plurality of valve end support struts.

12. The system of claim 11 wherein each of the plurality of valve end support struts include at least one opening for receiving one of the plurality of valve attachment devices.

13. The system of claim 9 wherein the expandable support structure comprises a self-expanding stent.

14. The system of claim 9 wherein the expandable support structure comprises a balloon expandable stent.

15. A system for treating a vascular condition, comprising:

a conduit operably attached to a vessel, the conduit including an inner wall defining a lumen;

a delivery catheter;

a replacement valve device disposed on the delivery catheter, the replacement valve device including a prosthetic valve connected to an expandable support structure, the expandable support structure including at least one valve attachment portion; and

a plurality of valve attachment devices,

wherein each valve attachment portion includes a plurality of struts, each strut having at least one opening for receiving one of the plurality of valve attachment devices,

wherein the valve attachment device comprises a head portion, a pin portion and a flange portion, and

wherein the flange portion comprises a shape memory material, the flange portion having a delivery configuration and an attachment configuration.

17. The system of claim 15 wherein the expandable support structure further comprises a first stent region and a second stent region, the at least one valve attachment portion disposed between the first stent region and the second stent region.

18. The system of claim 17 wherein the first stent region and the second stent region include a plurality of valve end support struts.

19. The system of claim 18 wherein each of the plurality of valve end support struts include at least one opening for receiving one of the plurality of valve attachment devices.

16. A method for treating a vascular condition, the method comprising:

inserting a conduit into a target region of a vascular system, the conduit having an inner wall defining a conduit lumen;

delivering a stented valve into the conduit lumen, the stented valve including a prosthetic valve connected to an expandable support structure by a plurality of attachment devices each attachment device having a head portion, a pin portion and a flange portions wherein the flange portion comprises a shape memory material, the flange portion having a delivery configuration and an attachment configuration, the expandable support structure including at least one valve attachment portion, each valve attachment portion having a plurality of struts, and each strut having at least one opening for receiving a valve attachment device; and

expanding the stented valve into contact with the inner wall of the conduit.