Stent

• US 6,309,415 B1
• Filed: 12/09/1999
• Issued: 10/30/2001
• Est. Priority Date: 12/28/1993
• Status: Expired due to Term

• Current Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Original Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Inventors: Karev, Andrei Vladimirovich, Pulnev, Sergei Appolonovich, Schukin, Sergei Vladimirovich
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US09/458,141
• Time in Patent Office: 691 Days
• Field of Search: 623/1-9-, 623/1-1-
• US Class Current: 623/1.22
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/12022 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 Class Codes: A61B 17/12118 for positioning in conjunction with a stent
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/823 Stents, different from stent-grafts, adapted to cover an aneurysm
• CPC Class Codes: Y10S 623/901 Method of manufacturing prosthetic device

Abstract

A stent shaped as a three-dimensional body which is formed by interlaced threads (1) arranged in multistart turns of a helical line. The threads (1) are arranged in at least two groups (2 and 3) of the helical turns featuring opposite senses of helix. The stent ends are established by sections (5) where the turns of one helical line merge into those of the other helical line, said sections appearing as a single length of the thread (1).

Claims

1. A device for placement within a body lumen, comprising:

a body; and

a single elongate element defining said body, said elongate element configured to provide said body with an interlacing pattern.

2. The device of claim 1, wherein said elongate element follows a helical line.

3. The device of claim 1, wherein said body has a first end and a second end, said first end and said second end embodying spring characteristics.

4. The device of claim 3, wherein said body provides a uniform outwardly directed bias over a length thereof.

5. The device of claim 1, wherein said body has a variable cross-sectional diameter.

6. The device of claim 1, further comprising at least one additionally elongate element interlaced into a portion of said body to provide an area of high density interlacing.

7. The device of claim 1, wherein a first portion of said elongate element crosses a second portion of said elongate element at a crossing point.

8. The device of claim 1, said elongate member having a first end and a second end, said first and second ends being attached to one another.

9. The device of claim 1, said body having a first end, a second end and a plurality of merging sections defining each of said first and second ends.

10. The device of claim 9, wherein each of said merging sections embody a bend.

11. The device of claim 10, wherein each of said bends are shaped as a circle arc.

12. The device of claim 11, wherein alternating bends of said first end of said device reside in separate planes traversing a longitudinal access of said body.

13. The device of claim 9, wherein a central portion of said body has a cross-sectional profile that is much larger than a cross-sectional profile of said ends of said body.

14. The device of claim 13, wherein said ends of said body are joined to provide the body with a generally spherical configuration.

15. The device of claim 1, wherein said body has a tubular configuration.

16. The device of claim 15, said body further including a first end and a second end.

17. The device of claim 16, wherein at least one of said first and second ends have a flared configuration.

18. The device of claim 17, wherein each of said first and second ends have a flared configuration.