Stent having arcuate struts

• US 20060004436A1
• Filed: 06/30/2005
• Published: 01/05/2006
• Est. Priority Date: 07/02/2004
• Status: Abandoned Application

• Current Assignee: Cook Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated)
• Inventors: Osborne, Thomas A., Amarant, Paul D.
• Application Number:
  US11/171,909
• Publication Number:
  US 20060004436A1
• Time in Patent Office: Days
• US Class Current: 623/1.150
• CPC Class Codes: A61F 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/91533 characterised by the phase between adjacent bands
• CPC Class Codes: A61F 2002/91575 connected peak to trough
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• 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 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0065 toroidal, e.g. ring-shaped, doughnut-shaped
• CPC Class Codes: A61F 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2250/0037 differing in height or in length
• CPC Class Codes: A61F 2250/0039 differing in diameter

Abstract

Stents are provided having a circumferential element with first and second ends, a longitudinal axis, and arcuate struts disposed intermediate the ends. End portions of adjacent arcuate struts are joined by strut connections formed at the first and second ends. The struts are spaced arcuately relative to a plane that includes the longitudinal axis, such that they arc convexly or concavely relative to the plane. Another stent has a tubular main body with a longitudinal axis, first and second ends defining a lumen in communication with openings at the first and second ends, and circumferential elements disposed along the tubular main body longitudinal axis, whereby one or more link members join two or more of the circumferential elements. Methods of using a stent having a circumferential element having arcuate struts connected by strut connections are also provided.

Claims

1. A stent for implantation in a body vessel, the stent comprising:

a circumferential element having first and second longitudinal ends and a longitudinal axis;

a plurality of strut connections formed at the first and second ends;

a plurality of arcuate struts spaced arcuately relative to a plane including the longitudinal axis and disposed intermediate the first and second ends; and

wherein adjacent struts are joined end-to-end by at least one strut connection.

2. The device of claim 1 wherein the circumferential element is moveable between a first radially compressed configuration and a second radially expanded configuration sized for vessel implantation and defining a passageway extending between the first and second ends.

3. The device of claim 2 wherein the expanded configuration comprises a Z-shaped zigzag pattern.

4. The device of claim 2 wherein the circumferential element is balloon-expandable.

5. The device of claim 2 wherein the circumferential element is self-expandable.

6. The device of claim 1 wherein at least one of the struts has a concave bend.

7. The device of claim 1 wherein at least one of the struts has a convex bend.

8. The device of claim 1 wherein at least one of the strut connections comprises a coiled structure.

9. The device of claim 1 wherein one of the strut connections comprises a head strut connection.

10. The device of claim 1 wherein at least one of the strut connections comprises a bend.

11. A stent for implantation in a body vessel, the stent comprising:

a tubular main body having a longitudinal axis and first and second longitudinal ends and defining a lumen in communication with openings at the first and second ends, the main body having a radially compressed first diameter configuration and a radially expanded second diameter configuration;

circumferential elements disposed-along the tubular-main-body-longitudinal axis, the circumferential elements having a plurality of arcuate struts and a plurality of strut connections; and

one or more link members joining the circumferential elements.

12. The device of claim 11 wherein the radially expanded configuration comprises a Z-shaped zigzag pattern.

13. The device of claim 11 wherein the main body is balloon-expandable.

14. The device of claim 11 wherein the main body is self-expandable.

15. The device of claim 11 wherein the main body is partially self-expandable and partially balloon-expandable.

16. The device of claim 11 wherein the plurality of struts have a concave bend.

17. The device of claim 11 wherein the plurality of struts have a convex bend.

18. The device of claim 11 wherein the plurality of strut connections comprise a turn.

19. The device of claim 18 wherein one or more of the plurality of strut connections have a closed eyelet.

20. The device of claim 18 wherein one or more of the plurality of strut connections have an open eyelet.