STENT

• US 20100114297A1
• Filed: 10/29/2009
• Published: 05/06/2010
• Est. Priority Date: 09/18/2001
• Status: Abandoned Application

• Current Assignee: Abbott Laboratories Limited (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Laboratories Limited (Abbott Laboratories Incorporated)
• Inventors: Calisse, Jorge
• Application Number:
  US12/608,335
• Publication Number:
  US 20100114297A1
• Time in Patent Office: Days
• US Class Current: 623/1.160
• 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 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0036 differing in thickness

Abstract

A stent has a tubular flexible body with a wall formed of a web structure: The web structure has a plurality of neighboring web patterns which include webs arranged side by side. The web patterns are interconnected via at least one connection element. To prevent the connection element from moving out of the plane of the wall during expansion, the connection elements are each provided with connection webs arranged at an angle relative to one another and interconnected via hinges.

Claims

1. A stent comprising:

a tubular flexible body with a wall having a web structure which can be transformed from a non-expanded state into an expanded state,

said web structure comprising a plurality of neighboring web patterns which include webs arranged side by side, and

adjacent pairs of said web patterns being interconnected by at least one connection element,

each of said connection elements comprises a central connection web and a pair of outer connection webs that are arranged at an angle relative to one another and interconnected via a pair of inner hinges.

2. The stent according to claim 1, wherein

said connection webs in the non-expanded state of said web structure are arranged at least approximately at right angles relative to one another.

3. The stent according to claim 2, wherein

said connection webs have equal widths.

4. The stent according to claim 2, wherein

said connection webs have different widths.

5. The stent according to claim 2, wherein

said central connection web has a smaller width than that of the outer connection webs.

6. The stent according to claim 1, wherein

said connection webs have equal widths.

7. The stent according to claim 1, wherein

said connection webs have different widths.

8. The stent according to claim 1, wherein

said central connection web has a smaller width than that of the outer connection webs.

9. The stein according to claim 1, wherein

said outer connection webs are each connected via an outer hinge to the neighboring web of said wall structure.

10. The stent according to claim 9, wherein

said outer hinges are formed as film hinges.

11. The stent according to claim 10, wherein

said inner hinges are formed as film hinges.

12. The stein according to claim 1, wherein

said inner hinges are formed as film hinges.

13. The stent according to claim 1, wherein

the wall of said body is formed of a biocompatible material.

14. The stent according to claim 13, wherein

said web structure and said connection elements are formed of a nickel-titanium alloy, plastics or stainless steel.

15. The stent according to claim 1, wherein

the lengths of said connection webs are equal.

16. The stent according to claim 1, wherein

the lengths of said connection webs are different.