Bifurcated endoluminal prosthesis

• US 7,510,570 B1
• Filed: 08/31/1999
• Issued: 03/31/2009
• Est. Priority Date: 02/09/1994
• Status: Expired due to Fees

• Current Assignee: Lifeport Sciences LLC (Acacia Research Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Cragg, Andrew H., Hudson, John, Goicoechea, George
• Primary Examiner(s): Willse; David H
• Assistant Examiner(s): Blanco; Javier G
• Application Number:
  US09/387,696
• Time in Patent Office: 3,500 Days
• Field of Search: 623/1.16, 623/1.18, 623/1.23, 623/1.35, 623/1.36, 623/1.15
• US Class Current: 623/1.16
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/852 Two or more distinct overlapping stents
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing 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 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/828 Means for connecting a plurality of stents allowing flexibility of the whole structure
• CPC Class Codes: A61F 2002/8486 provided on at least one of the ends
• CPC Class Codes: A61F 2210/0019 operated at only one temperature whilst inside or touching the human body, e.g. constrained in a non-operative shape during surgery, another temperature only occurring before the operation
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• 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 2220/0066 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 2230/0067 conical
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61M 25/0662 : Guide tubes
• CPC Class Codes: Y10S 623/903 : Blood vessel
• CPC Class Codes: Y10T 29/49826 : Assembling or joining

Abstract

An introducer for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method of treating and angeological disease using a bifurcated stent; an endoluminal stent having perpendicular hoop members, each hoop member formed of wire in a sinuous configuration, at least some of juxtaposed apices in neighboring hoops being secured to one another, such stents also forming axially aligned segments in straight stents, and segments of bifurcated stents in particular embodiments. Certain embodiments of such stents also include barbs, fabric covering and radiopaque markers.

Claims

1. A generally tubular prosthesis for implantation in a human or animal duct to ensure a passageway in said duct, said prosthesis having a tubular surface and a tube axis and being generally axially subdivided into two or more circumferentially oriented hoop-like tubular portions, said prosthesis comprising:

a plurality of discrete structural wires or filaments joined together to form said prosthesis, said wires or filaments each having one or more corrugated portions and at least some of said wires or filaments having one or more generally straightened extension portions,

wherein at least two of said hoop-like tubular portions are axially arranged in juxtaposition to one another,

wherein said hoop-like tubular portions are formed from the corrugated portions of two or more of said wires or filaments, and

wherein said straightened extension portions extend between and connect consecutive ones of said hoop-like tubular portions.

2. The prosthesis of claim 1, wherein said prosthesis is a forked prosthesis comprising a generally tubular main branch and at least two secondary branches extending from said main branch.

3. A generally tubular prosthesis for implantation in a human or animal duct to ensure a passageway in said duct, said prosthesis having a tubular surface and a tube axis and being generally axially subdivided into two or more circumferentially oriented hoop-like tubular portions, said prosthesis comprising:

a plurality of discrete structural wires or filaments joined together to form said prosthesis, said wires or filaments each having one or more corrugated portions and at least some of said wires or filaments having one or more generally straightened extension portions,

wherein said tubular portions are arranged in juxtaposition to each other,

wherein said hoop-like tubular portions are formed from said corrugated portions of two or more of said wires or filaments, and

wherein said straightened extension portions extend between and connect consecutive ones of said hoop-like tubular portions.