Stent graft with branch leg

• US 7,314,483 B2
• Filed: 01/08/2002
• Issued: 01/01/2008
• Est. Priority Date: 11/16/2000
• Status: Expired due to Term

• Current Assignee: Cardinal Health Switzerland 515 GmbH (Cardinal Health, Inc.)
• Original Assignee: Cordis Corporation (Cardinal Health, Inc.)
• Inventors: Landau, George D., Solovay, Kenneth S., Ramer, Marc
• Primary Examiner(s): McDermott; Corrine
• Assistant Examiner(s): Miller; Cheryl
• Application Number:
  US10/041,369
• Publication Number:
  US 20020058986A1
• Time in Patent Office: 2,184 Days
• Field of Search: 623/1.35, 623/1.16, 623/1.36
• US Class Current: 623/1.35
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• 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 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/825 having longitudinal struts
• 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 2002/91558 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 2220/0066 stapled
• CPC Class Codes: A61F 2220/0075 : sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/001 : Figure-8-shaped, e.g. hourglass-shaped
• CPC Class Codes: A61F 2230/0013 : Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/005 : Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0054 : V-shaped
• CPC Class Codes: A61F 2230/0067 : conical
• CPC Class Codes: A61F 2230/0078 : hyperboloidal
• CPC Class Codes: A61F 2250/006 : modular

Abstract

The present invention is directed to a system, apparatus, and method for treating, repairing, and/or replacing an aneurysm, preferably an aortic aneurysm, and most preferably, an abdominal aortic aneurysm. The systems, devices, and methods of the present invention include a first prosthesis or stent gasket, and at least one second prosthesis for bypassing the aneurysm. In preferred embodiments, the second prosthesis includes a branch leg that may be disposed and anchored in an either a cross artery or a downstream artery to facilitate fluid flow. In other preferred embodiments, at least one third prosthesis is provided for establishing a fluid flow channel through a second diseased artery to bypass an aneurysm disposed therein. In accordance with the invention, the first artery may be the abdominal aorta and the second artery may be an iliac artery.

Claims

1. A system for bypassing multiple aneurysms comprising:

a first sealing prosthesis, including an expanding lattice defining a substantially tubular structure with an interior volume and having a proximal end, a distal end, and a plurality of spaced longitudinal legs extending from the lattice;

a gasket covering the proximal end of the sealing prosthesis and at least a portion of the substantially tubular structure;

at least two second bypass prostheses matingly engaging and communicating with the sealing prosthesis, each of the second prostheses being configured to bypass a first aneurysm in a first artery and to extend into second arteries downstream of the first aneurysm;

at least two third bypass prostheses matingly engaging and communicating with the respective at least two second bypass prostheses, the at least two third bypass prostheses being configured to provide fluid flow paths in the second arteries downstream from the first artery and to bypass at least one second aneurysm in one of the second arteries, each of the at least two third bypass prostheses defining substantially, tubular shaped sections with a longitudinal axis and having first and second ends and comprising first, second and third sections, the first section including a plurality of open diamond shaped regions and zig-zag shaped regions, the zig-zag shaped regions being positioned between the open diamond shaped regions and at an end of the first section, the second section including a plurality of open diamond shaped regions and zig-zag shaped regions, the zig-zag shaped regions being positioned between the open diamond shaped regions and at an end of the second section, the third section including a plurality of straight struts extending parallel to the longitudinal axis from one or more apexes of the zig-zag shaped regions at the ends of the first and second sections, the plurality of straight struts are attached only on a single end to one of the first and second sections and in an alternating configuration, one or more of the plurality of straight struts being deformable out of the plane of the longitudinal axis thereby forming a branch leg fitting for establishing a fluid flow channel from at least one of the at least two third bypass prostheses into a third artery, the first, second and third sections comprising a monolithic structure with the plurality of straight struts being independent structures of the plurality of open diamond shaped regions and the zig-zag shaped regions; and

an extension prosthesis connected to and in fluid communication with the branch leg fitting of the at least one third bypass prosthesis.

2. The system of claim 1 wherein each straight strut is shape set to form a substantially identical angle with respect to a longitudinal axis of the at least one third bypass prosthesis.

3. The system of claim 1 wherein the plurality of straight struts comprising the branch leg fitting are shape set substantially perpendicular to a longitudinal axis of the at least one third bypass prosthesis.

4. The system of claim 1 wherein at least some of the plurality of straight struts are shape set to a different angle than others of the plurality of straight struts.

5. The system of claim 1 further comprising a bifurcated graft having a tubular section surrounding the at least one third bypass prosthesis and an offshoot surrounding the branch leg fitting.