ENDOLUMINAL PROSTHESIS COMPRISING A VALVE AND AN AXIALLY EXTENDABLE SEGMENT

• US 20140257474A1
• Filed: 03/11/2013
• Published: 09/11/2014
• Est. Priority Date: 03/11/2013
• Status: Active Grant

• Current Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Original Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Inventors: Roeder, Blayne A.
• Granted Patent: US 9,744,032 B2
• Time in Patent Office: Days
• US Class Current: 623/2.17
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2230/0071 spherical

Abstract

The present embodiments provide a prosthesis comprising first and second segments, and an axially extendable segment coupled to the first and second segments. A valve is coupled to at least one of the axially extendable segment or the second segment. The axially extendable segment comprises a first state in which the valve at least partially overlaps with the first segment, and the axially extendable segment comprises a second state in which the valve lacks an overlap with the first segment.

Claims

1. A prosthesis, comprising:

first and second segments;

an axially extendable segment coupled to the first and second segments; and

a valve coupled to at least one of the axially extendable segment or the second segment,

wherein the axially extendable segment comprises a first state in which the valve at least partially overlaps with the first segment, and the axially extendable segment comprises a second state in which the valve lacks an overlap with the first segment.

2. The prosthesis of claim 1, wherein the axially extendable segment is secured to each of the first and second segments in both delivery and deployed states.

3. The prosthesis of claim 1, wherein a proximal end of the axially extendable segment is coupled to a proximal end of the first segment, and a distal end of the axially extendable segment is coupled to a proximal end of the second segment.

4. The prosthesis of claim 1, wherein the axially extendable segment comprises a plurality of first wire segments extending in a first direction and a plurality of second wire segments extending in a second direction, wherein the plurality of first wire segments intersect with the plurality of second wire segments.

5. The prosthesis of claim 4, further comprising at least one fabric segment disposed between the first and second wire segments of the axially extendable segment.

6. The prosthesis of claim 1, wherein the first and second segments at least partially overlap with one another when the axially extendable segment is in the first state, and the first and second segments lack an overlap with one another when the axially extendable segment is in the second state.

7. The prosthesis of claim 1, wherein the first segment comprises a balloon-expandable stent.

8. The prosthesis of claim 1, wherein the second segment comprises a self-expandable stent.

9. The prosthesis of claim 1, wherein the second segment comprises a graft coupled to a stent framework, wherein the graft comprises a distal region having a diameter larger than a proximal region.

10. The prosthesis of claim 9, further comprising at least one fenestration provided in the graft of the second segment.

11. A prosthesis, comprising:

first and second segments;

an axially extendable segment coupled to the first and second segments, the axially extendable segment having a first state in which the first and second segments at least partially overlap with one another, and a second state in which the first and second segments lack an overlap; and

a valve coupled to at least one of the axially extendable segment or the second segment.

12. The prosthesis of claim 11, wherein the axially extendable segment is secured to each of the first and second segments in both delivery and deployed states.

13. The prosthesis of claim 11, wherein a proximal end of the axially extendable segment is coupled to a proximal end of the first segment, and a distal end of the axially extendable segment is coupled to a proximal end of the second segment.

14. The prosthesis of claim 11, wherein the axially extendable segment comprises a plurality of first wire segments extending in a first direction and a plurality of second wire segments extending in a second direction, wherein the plurality of first wire segments intersect with the plurality of second wire segments.

15. The prosthesis of claim 14, further comprising at least one fabric segment disposed between the first and second wire segments of the axially extendable segment.

16. The prosthesis of claim 11, wherein the first segment comprises a balloon-expandable stent.

17. The prosthesis of claim 11, wherein the second segment comprises a self-expandable stent.

18. A method for deploying a prosthesis, the method comprising:

providing a prosthesis comprising first and second segments, an axially extendable segment coupled to the first and second segments, and a valve coupled to at least one of the axially extendable segment or the second segment;

positioning the axially extendable segment in an initial state during delivery in which the valve lacks an overlap with the first segment; and

allowing the axially extendable segment to move to a different state upon deployment in which the valve at least partially overlaps with the first segment.

19. The method of claim 18, wherein the axially extendable segment is secured to each of the first and second segments in both delivery and deployed states.

20. The method of claim 18, wherein the first segment comprises a balloon-expandable stent and the second segment comprises a self-expandable stent.