Prosthesis comprising a coiled stent and method of use thereof

• US 8,551,153 B2
• Filed: 12/20/2005
• Issued: 10/08/2013
• Est. Priority Date: 12/20/2005
• Status: Active Grant

• Current Assignee: Cardinal Health Switzerland 515 GmbH (Cardinal Health, Inc.)
• Original Assignee: Cordis Corporation (Cardinal Health, Inc.)
• Inventors: Castaneda, Alfredo, Dwyer, Clifford J., Johnson, Kirk L., DePalma, Donald Francis
• Primary Examiner(s): MCEVOY, THOMAS M
• Application Number:
  US11/312,073
• Publication Number:
  US 20070142895A1
• Time in Patent Office: 2,849 Days
• Field of Search: 623/1.13, 623/1.15, 623/1.16, 623/1.35, 623/1.44, 623/1.31, 623/1.33
• US Class Current: 623/1.13
• 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 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• 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 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 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• 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 2230/0034 D-shaped
• CPC Class Codes: A61F 2230/0058 X-shaped
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body

Abstract

The present invention is directed to a prosthesis and method for treating, repairing, and/or replacing an abdominal aortic aneurysm. The prosthesis includes a coiled stent comprised of shape memory material having first and second anchoring zones and an intermediate zone. The prosthesis also includes graft material engaging at least a portion of the stent. During delivery of the prosthesis, the stent is in a substantially straight longitudinal configuration, and after delivery of the prosthesis the stent is returned to a coiled configuration. The diameter of the prosthesis may be adjusted by controlling the degree to which the stent is coiled.

Claims

1. A prosthesis comprising:

a single smooth, spiral coiled stent having a plurality of rings formed from an elongate, straight, single member of shape memory material, the stent including first and second anchoring zones and an intermediate zone, the first and second anchoring zones having a ring to ring distance in the range from about 2 mm to about 5 mm and the intermediate zone having a ring to ring distance in the range from about 4 mm to about 10 mm, and wherein the intermediate zone is longer than the first and second anchoring zones, at least one of the first and second anchoring zones being configured for mating with an additional prosthesis;

a sealing device configured to fit over substantially all of the at least one of the first and second anchoring zones, the sealing device comprising a compressible foam; and

graft material engaging at least a portion of the stent, the single member configured to be pulled into a substantially straight longitudinal configuration prior to delivery, and returned to the coiled configuration to expand the graft material.

2. The prosthesis of claim 1, wherein the shape memory material is comprised of a metal alloy.

3. The prosthesis of claim 1, wherein the stent is attached to an interior surface or an exterior surface of the graft material.

4. The prosthesis of claim 1, wherein during delivery of the prosthesis, the graft material has a profile diameter less than about fourteen French.

5. The prosthesis of claim 1 wherein the stent is coated with heparin.

6. The prosthesis of claim 1 further comprising a secondary stent attached to the first anchoring zone.