Articulated expandable intraluminal stent

• US 20030191523A1
• Filed: 03/31/2003
• Published: 10/09/2003
• Est. Priority Date: 03/10/1997
• Status: Abandoned Application

• Current Assignee: Hikmat Hojeibane
• Original Assignee: Hikmat Hojeibane
• Inventors: Hojeibane, Hikmat
• Application Number:
  US10/403,420
• Publication Number:
  US 20030191523A1
• Time in Patent Office: Days
• US Class Current: 623/1.16
• 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 2/91 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 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/30143 hexagonal
• CPC Class Codes: A61F 2002/30153 rectangular
• CPC Class Codes: A61F 2002/30154 square
• CPC Class Codes: A61F 2002/30156 triangular
• CPC Class Codes: A61F 2002/825 having longitudinal struts
• CPC Class Codes: A61F 2002/828 Means for connecting a plurality of stents allowing flexibility of the whole structure
• CPC Class Codes: A61F 2002/91525 within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
• CPC Class Codes: A61F 2002/91541 Adjacent bands are arranged out of phase
• CPC Class Codes: A61F 2002/9155 Adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/0017 Angular shapes
• CPC Class Codes: A61F 2230/0019 rectangular
• CPC Class Codes: A61F 2230/0021 : square
• CPC Class Codes: A61F 2230/0023 : triangular

Abstract

The present invention includes: an expandable, tubular shaped prosthesis having first and second ends and a wall surface disposed between the first and second ends, the wall surface being formed by a plurality of intersecting elongate members; and a catheter, having an expandable, inflatable portion associated therewith and including means or mounting and retaining the expandable tubular shaped prosthesis on the expandable, inflatable portion, whereby upon inflation of the expandable, inflatable portion of the catheter, the prosthesis is formed radially outwardly into contact with the body passageway. The articulation in the form of a rounded wire frame loop connects similar stent bodies. Also, rounded open connectors and shortened cells in the stent allow for greater flexibility.

Claims

1. A tubular stent comprising a generally slotted tube wherein a plurality of slots are spaced around the circumference of a cylindrical member, forming a mesh like configuration around said cylindrical member, and wherein said slots are variable in length.

9. The stent of claim 1 wherein at least one slot is about 1½

to 3 times the length of another slot.

2. A generally tubular stent having a longitudinal axis and containing a plurality of struts arranged circumferentially around a cylinder, and only a predetermined number but less than all of the adjacent ones of said struts connected by connecting members placed at angles generally perpendicular to the longitudinal axis of said cylindrical member to form slots therein and wherein certain slots formed by said struts are not closed.

10. The stent of claim 2 wherein at least one slot is about 1½

to 3 times the length of another slot.

3. A cylindrical stent having a plurality of elongate struts connected by a plurality of circumferentially arranged members, and said circumferentially arranged members generally forming a rectangular shaped configurations about said stent, and wherein a predetermined number certain of said rectangular shaped configurations but less than all of said configurations are completely closed so that the remainder of the rectangular shaped configurations have openings therein.

11. The stent of claim 3 wherein at least one slot is about 1½

to 3 times the length of another slot.

4. A stent containing a plurality of open cells and a plurality of closed cells, said open cells formed by adjacent elongate connectors connected at one end by a connecting member and not connected at a second end, and a closed cell formed by an elongate connecting member adjacent to second elongate connecting member and said first and second elongated connecting members connected by first and second connecting members.

5. The stent of claim 4 wherein a plurality of open connecting is concentrated, on one side of the stent to encourage bending in a predetermined direction.

12. The stent of claim 4 wherein at least one slot is about 1½

to 3 times the length of another slot.

6. A pair of stents connected by a connecting member, said connecting member forming a spiral such that said spiral can be expanded both radially and circumferentially.

7. The stent of claim 6 wherein said spiral is wave form.

8. The connector of stent of claim 7 wherein said spiral is generally linear in shape.