Graft to repair a body passageway

• US 5,571,173 A
• Filed: 06/06/1995
• Issued: 11/05/1996
• Est. Priority Date: 06/11/1990
• Status: Expired due to Term

• Current Assignee: Juan C. Parodi
• Original Assignee: Juan C. Parodi
• Inventors: Parodi, Juan C.
• Primary Examiner(s): BRITTINGHAM, DEBRA
• Application Number:
  US08/466,354
• Time in Patent Office: 518 Days
• Field of Search: 623/1, 623/11, 623/12, 606/191, 606/194, 606/195, 606/198, 606/151-158, 600/36, 604/8
• US Class Current: 623/1.13
• CPC Class Codes: A61F 2/07 Stent-grafts
• 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 2002/065 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 2210/0004 bioabsorbable
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters

Abstract

An aortic graft for intraluminal delivery to repair an abdominal aortic aneurysm is provided with at least one wire which is woven into the distal, or lower, end of the graft, which wire permits the distal end of the graft to conform to, and sealingly engage, within the aortic bifurcation region of the aneurysm.

Claims

1. A graft for intraluminal delivery to repair a body passageway, comprising:

a tube having first and second ends and a wall surface disposed between the two ends, the tube adapted to be disposed within the body passageway; and

means for securing the tube within the body passageway, the securing means including a thin-walled tubular member having, a longitudinal axis, an interior, first and second ends and a smooth outer wall surface disposed between the first and second ends, the wall surface of the securing means having a substantially uniform thickness and a plurality of slots formed therein, the slots being disposed substantially parallel to the longitudinal axis of the tubular member, the tube being secured to the outer wall surface of the tubular member;

the tubular member having a first diameter which permits intraluminal delivery of the tubular member and tube into the body passageway and the tubular member and tube having a second, expanded and deformed diameter, upon an application from the interior of the tubular member of a radially, outwardly extending force, which second diameter is variable and dependent upon the amount of force applied to the tubular member, the tube and tubular member each having a predetermined length, the length of the tube and tubular member being substantially the same, whereby the tubular member may be expanded and deformed to secure the tube within the body passageway.

2. The graft of claim 1, wherein the slots are uniformly and circumferentially spaced from slots, which are disposed adjacent thereto, and the slots are uniformly spaced from adjacent slots along the longitudinal axis of the tubular member, whereby at least one elongate member is formed between adjacent slots.

3. The graft of claim 2, wherein each slot has first and second ends, and the first and seconds ends of at least one slot are disposed intermediate the first and second ends of at least one adjacent slot along the longitudinal axis of the tubular member.

4. The graft of claim 1, wherein the slots have a substantially rectangular configuration when the tubular member has the first diameter;

and a plurality of the slots have a substantially hexagonal configuration when the tubular member has the second, expanded diameter.

5. The graft of claim 1, wherein the tube is secured to the outer wall surface of the tubular member by a plurality of sutures.

6. The graft of claim 5, wherein at least one pair of sutures are utilized and the sutures of each pair of sutures are dispsoed on the outer wall surface of the tubular member circumferentially spaced by an angle of approximately 180 degrees.

7. The graft of claim 5, wherein the tube is folded and wrapped around the tubular member when the tubular member has its first diameter;

and the tube unfurls and has a diameter substantially equal to the diameter of the tubular member, after the tubular member has been expanded and deformed and has the second, expanded and deformed diameter.

8. The graft of claim 1, wherein the tube is crimped to form an undulating longitudinal cross-sectional configuration, whereby kinking or twisting of the tube is minimized.

9. The graft of claim 1, wherein the tube is bioerodable.

10. The graft of claim 1, wherein the tube is impervious to the flow of fluid through the wall surface of the tube.