FLEXIBLE EXPANDABLE STENT

• US 20010018595A1
• Filed: 06/21/1999
• Published: 08/30/2001
• Est. Priority Date: 03/17/1994
• Status: Active Grant

• Current Assignee: Medinol Limited (Medinol USA Incorporated)
• Original Assignee: Medinol Limited (Medinol USA Incorporated)
• Inventors: PINCHASIK, GREGORY, ISRAEL, HENRY MARSHALL
• Granted Patent: US 6,461,381 B2
• Time in Patent Office: Days
• US Class Current: 606/198
• CPC Class Codes: A61F 2/856 Single tubular stent with a side portal passage
• 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 2002/91541 Adjacent bands are arranged out of phase
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped

Abstract

There is disclosed a stent for implanting in the body. The stent is formed of a tube having a patterned shape which has first and second meander patterns having axes extending in first and second directions. The first meander patterns can be formed into even and odd first meander patterns. The even and odd first meander patterns are 180° out of phase with each other and the odd patterns occur between every two even patterns. The second meander patterns are intertwined with the first meander patterns. The first and second directions can be orthogonal to each other. The second meander patterns can also be formed of even and odd patterns.

Claims

1. A stent formed of a tube having a patterned shape, the patterned shape comprising:

even first meander patterns having axes extending in a first direction;

odd first meander patters also having axes extending in said first direction, wherein said odd first meander patterns are 180°

out of phase with said even first meander patters and occur between every two even first meander patterns;

second meander patterns having axes extending in a second direction, wherein said second meander patterns are intertwined with said even and odd first meander patterns to form a distributed structure.

2. A stent according to

claim 1

and wherein said first and second directions are orthogonal.

3. A stent according to

claim 1

and wherein said first and second directions are not orthogonal.

4. A stent according to

claim 1

and wherein said second meander patterns have two loops per period and wherein said even and odd first meander patterns are connected on first and second sides, respectively on each loop.

5. A stent according to

claim 1

and wherein said second meander patterns are formed of even and odd second meander patterns.

6. A stent according to

claim 5

and wherein said even and odd first meander patterns have loops and wherein said even and odd second meander patterns are connected to said even and odd first meander patterns so as to leave one full loop between each pair of even and odd second meander patterns.

7. A stent according to

claim 1

and wherein said first and second meander patterns are formed from wire.

8. A stent according to

claim 1

and wherein said first and second meander patterns are cut from flat metal.

9. A stent according to

claim 1

and wherein said stent is finished in one of the following ways:

plating with a protective material, embedding with medicine, and covering with a material.

10. A stent formed of a tube having a patterned shape, the patterned shape comprising:

first meander patterns having axes extending in a first direction;

second meander patterns having axes extending in a second direction, wherein said second meander patters are intertwined with said first meander patterns to form a distributed structure.

11. A stent according to

claim 10

and wherein said first and second directions are orthogonal.

12. A stent according to

claim 10

and wherein said first and second directions are not orthogonal.

13. A stent according to

claim 10

and wherein said first and second meander patterns are formed from wire.

14. A stent according to

claim 10

and wherein said first and second meander patterns are cut from flat metal.

15. A stent according to

claim 10

and wherein said stent is finished in one of the following ways:

plating with a protective material, embedding with medicine, and covered with a material.