Surgical stent

• US 5,746,766 A
• Filed: 04/02/1997
• Issued: 05/05/1998
• Est. Priority Date: 05/09/1995
• Status: Expired due to Fees

• Current Assignee: Edrich Vascular Devices Incorporated
• Original Assignee: John K. Edoga
• Inventors: Edoga, John K.
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): RASCHE, PATRICK WILLIAM
• Application Number:
  US08/831,832
• Time in Patent Office: 398 Days
• Field of Search: 606/198, 606/200, 606/191, 606/194, 606/195, 623/12, 623/1
• US Class Current: 623/1.2
• CPC Class Codes: A61F 2/07 Stent-grafts
• 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 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable

Abstract

The present invention relates to a self-expanding stent which may be used to anchor a graft such as a abdominal aortic graft in place. The stent may also be used following procedures such as, for example, balloon angioplasty.

Claims

1. A self-actuating stent comprising

a first and second wire, said first wire zigzagging to define a generally closed cylindrical boundary having first and second open ends, said first wire extending from said first open end to said second end,

said second wire zigzagging to define same said generally closed cylindrical boundary, said second wire extending from said first open end to said second end,

said zigzagging first and second wires having apexes, said apexes being located at said first and second open ends,

said first wire joining said second wire at a plurality of points between said open ends, and

at said points, said first wire includes a loop for accepting said second wire, said loop being unitary with said first wire.

2. The stent of claim 1 wherein said loop is sized and shaped so as to accommodate and accept a suture.

3. The stent of claim 1 further wherein at said ends, said wires form an apex of a triangle having an open opposing side and said apex has a bulbed shape.

4. The stent of claim 1 wherein said generally cylindrical boundary defines a center axis and the distance of said wires from said center axis at said open ends is greater than the distance of said wires from said center axis between said open ends.

5. The stent of claim 1 wherein said wires are comprised of metal or alloys.

6. The stent of claim 5 wherein said wires are comprised of Titanium or stainless steel.

7. A stent comprising

a first and second wire, each wire comprising a closed loop generally defining a cylindrical boundary having first and second open ends,

each said wire zigzagging back and forth from said first open end to said second open end wherein each said wire includes apices, each said apex of said zigzagging wire is disposed at said open ends, and

wherein said first wire joins said second wire at a plurality of points disposed between said apexes.