Biluminal endovascular graft system

• US 7,112,217 B1
• Filed: 08/31/2000
• Issued: 09/26/2006
• Est. Priority Date: 03/16/1998
• Status: Expired due to Fees

• Current Assignee: Cardinal Health Switzerland 515 GmbH (Cardinal Health, Inc.)
• Original Assignee: Cordis Corporation (Cardinal Health, Inc.)
• Inventors: Olson, Matthew J., Heiland, Thomas K., Kugler, Chad J., Ressemann, Thomas V., Keith, Peter T., Drontle, John R.
• Primary Examiner(s): McDermott, Corrine
• Assistant Examiner(s): Matthews, William H
• Application Number:
  US09/652,548
• Time in Patent Office: 2,217 Days
• Field of Search: 623/1.16, 623/1.21, 623/1.28, 623/1.3, 623/1.31, 623/1.35, 623/1.23, 623/1.32, 623/1.13
• US Class Current: 623/1.31
• 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 2/90 characterised by a net-like or mesh-like structure
• 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 2002/826 more than one stent being applied sequentially
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• 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 2230/0034 D-shaped
• CPC Class Codes: A61F 2250/0007 for adjusting length

Abstract

An endovascular graft system used to repair aneurysms in arteries which bifurcate such as the aorta which bifurcates at the aortoiliac junction. The graft system includes two legs, each defining a lumen. Each leg comprises an aortic stent, a graft component and an iliac stent. The graft component is affixed at one end to the aortic stent and at the other end to the iliac stent. Each leg of the graft system is preferably a mirror image of the other with the exception of the aortic stents. The graft component of each leg includes a means for allowing in situ adjustment of the length of the leg to accommodate the different sizes required for different patients.

Claims

1. A graft system for repairing an abdominal aortic aneurysm comprising a one-piece tubular graft component defining a single flow channel and having a first end portion, a second end portion, and a middle portion extending therebetween, the first end portion including an aortic stent having an O-shaped portion and a D-shaped portion, the middle portion including a plurality of independent grasping stents spaced apart from one another and configured to prevent migration of the graft component once deployed, the second end portion including an iliac stent, wherein the cross-sectional areas of the D-shaped portion of the aortic stent and the iliac stent are greater than the cross-sectional area of the middle portion and the one-piece graft component tapers from the first and second end portions to the middle portion.

2. The graft system of claim 1 wherein the tubular graft component further includes a length adjustment element.

3. The graft system of claim 2 wherein the length adjustment element comprises a bellows region within the middle portion.