Prostheses for aneurysmal and/or occlusive disease at a bifurcation in a vessel, duct, or lumen

• US 5,843,160 A
• Filed: 04/01/1996
• Issued: 12/01/1998
• Est. Priority Date: 04/01/1996
• Status: Expired due to Fees

• Current Assignee: Valentine J. Rhodes
• Original Assignee: Valentine J. Rhodes
• Inventors: Rhodes, Valentine J.
• Primary Examiner(s): SHAY, RANDY CITRIN
• Application Number:
  US08/625,121
• Time in Patent Office: 974 Days
• Field of Search: 623/1, 623/12, 606/194, 606/195, 600/36
• US Class Current: 623/1.35
• 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 2/848 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 2/954 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 2002/065 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 2002/077 having means to fill the space between stent-graft and aneurysm wall, e.g. a sleeve
• CPC Class Codes: A61F 2230/001 Figure-8-shaped, e.g. hourglass-shaped
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas

Abstract

Expandable intraluminal prostheses for the treatment of aneurysmal disease or occlusive disease at a bifurcation of a vessel, duct, or lumen, e.g, disease at the aorto-iliac bifurcation. Each prosthesis includes three expandable, sleeve sections which are arranged to be located in respective portions of the vessel, duct, or lumen contiguous with the bifurcation, and secured together in situ. The prosthesis for aorto-iliac aneurysmal disease includes a common, stent-supported sleeve section having an expandable outer balloon for engaging and trapping the thrombus in the aneurysmal space in the abdominal aorta, and a pair of stent-supported sleeve limb sections. The limb sections are connected to the common section to provide a passage for blood to flow through the prosthesis. One or more of the limb sections can also include a outer balloon for engaging the thrombus within its associated aneurysmal space. Sealing mesh is provided on the prosthesis to prevent the egress of emboli and to permanently secure it in place. The prosthesis for aorto-iliac occlusive disease is similar the prothesis for aneurysmal disease, except that the sections of the prosthesis do not include an outer balloon.

Claims

1. A prosthesis for the treatment of aneurysmal disease adjacent a bifurcation in a vessel, duct, or lumen of a living being, a portion of the vessel, duct or lumen proximal to the bifurcation having an aneurysm in the wall thereof defining an aneurysmal space, the bifurcation comprising a pair of branches of the vessel, duct, or lumen, with each of the branches having an aneurysm in the wall thereof defining an aneurysmal space, said prosthesis being arranged for introduction into the body of a living being with a common portion located in the portion of the vessel, duct, or lumen at the site of an aneurysmal space, and a pair of portions located within respective ones of the branches of the bifurcation at the sites of the aneurysmal spaces in the branches, said prosthesis comprising a common sleeve, a pair of limb sleeves, sealing means, sleeve connecting means, anchoring means, and outer balloon means;

(a) said common sleeve comprising an elongated tube having an open upper end and an open lower end defining a passageway therebetween for conveying a body fluid therethrough, said common sleeve being arranged to be fixedly secured to the interior of the vessel, duct, or lumen by said anchoring means, and with said upper and lower ends of said common sleeve being sealed to portions of the vessel, duct, or lumen on respective sides of the aneurysm therein by portions of said sealing means,

(b) said outer balloon means being coupled to and dispose about said common sleeve and arranged to be filled with a filling material to fill the aneurysmal space within the vessel, duct, or lumen, and to preclude the egress of body material from between the outer balloon means and the interior of the vessel, duct, or lumen at the situs of the aneurysm,

(c) said limb sleeves being arranged to be located within respective ones of the branches of the bifurcation, with each of said limb sleeves comprising an elongated tube having an open upper end and an open lower end defining a passageway therebetween for conveying the fluid therethrough, said upper open ends of each of said limb sleeves being arranged to be fixedly secured to said common sleeve by said sleeve securement means at a location within said open bottom end of said common sleeve, whereupon said passageway in said common sleeve is in fluid communication with said passageways in said limb sleeves, and with portions of said sealing means being interposed between said common sleeve and said limb sleeves adjacent said joint to preclude the egress of the fluid from said joint.

2. The prosthesis of claim 1 wherein said common sleeve is expandable to an expanded state when in position, and is held in said expanded state by at least one stent.

3. The prosthesis of claim 2 wherein each of said limb sleeves is expandable to an expanded state when in position, and is held in said expanded state by at least one stent.

4. The prosthesis of claim 1 wherein each of said limb sleeves is expandable to an expanded state when in position, and is held in said expanded state by at least one stent.

5. The prosthesis of claim 1 wherein said anchoring means comprises at least one expandable stent.

6. The prosthesis of claim 1 wherein said sealing means comprises mesh material located adjacent the upper and lower ends of said common sleeve to seal said upper and lower ends of said common sleeve to the portions of the vessel, duct, or lumen on respective sides of the aneurysm.

7. The prosthesis of claim 6 wherein said sealing means comprises mesh material interposed between said common sleeve and said limb sleeves adjacent said joint to preclude the egress of the fluid from said joint.

8. The prosthesis of claim 1 wherein said sealing means comprises mesh material interposed between said common sleeve and said limb sleeves adjacent said joint to preclude the egress of the fluid from said joint.

9. The prosthesis of claim 1 wherein said anchoring means comprise plural projections arranged for engagement with the interior of the wall of the vessel, duct, or lumen.

10. The prosthesis of claim 1 wherein said sleeve securement means comprises a first connector member fixedly secured to said common sleeve and a pair of connector members, one of said pair of connector members being fixedly secured to one of said limb sleeves, and the other of said pair of connector members being fixedly secured to the other of said limb sleeves, said first connector member being arranged to be connected to each of said pair of connector members.

11. The prosthesis of claim 10 wherein said first connector member is arranged to matingly engage each of said pair of connector members.

12. The prosthesis of claim 1 wherein at least one said limb sleeves additionally comprises an outer balloon means disposed thereabout and arranged to be filled with a filling material to preclude the egress of body material from between the outer balloon means and the interior of the branch of the vessel, duct, or lumen at the situs of the aneurysm therein.

13. The prosthesis of claim 1 wherein said prosthesis comprises a flexible material to enable said prosthesis to bend longitudinally for ready placement within a curved vessel, duct, or lumen.