Bifurcated endoluminal prosthesis
First Claim
Patent Images
1. A prosthesis comprising:
- a bifurcated base structure which defines a common flow lumen at a proximal end and at least two connector legs which define divergent flow lumens from the common flow lumen at a distal end and which define at least one female engaging portion at at least one of the distal ends of said at least two connector legs; and
a graft having a proximal end and a distal end which has a male engaging portion at said proximal end and which is adapted to be anchored within at least one of the female engaging portions of said at least two connector legs at the distal end of said bifurcated base structure, wherein engaging said male and female engaging portions provides a means for locking said graft and said bifurcated base structure together upon said graft being anchored in situ within said at least one female engaging portion to form a continuous extension of at least one of said divergent flow lumens of said bifurcated base structure.
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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.
254 Citations
15 Claims
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1. A prosthesis comprising:
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a bifurcated base structure which defines a common flow lumen at a proximal end and at least two connector legs which define divergent flow lumens from the common flow lumen at a distal end and which define at least one female engaging portion at at least one of the distal ends of said at least two connector legs; and a graft having a proximal end and a distal end which has a male engaging portion at said proximal end and which is adapted to be anchored within at least one of the female engaging portions of said at least two connector legs at the distal end of said bifurcated base structure, wherein engaging said male and female engaging portions provides a means for locking said graft and said bifurcated base structure together upon said graft being anchored in situ within said at least one female engaging portion to form a continuous extension of at least one of said divergent flow lumens of said bifurcated base structure. - View Dependent Claims (2, 3)
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4. A prosthesis comprising:
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a bifurcated base graft structure which defines a common flow lumen at a proximal end and a pair of connector legs which define divergent flow lumens from the common flow lumen at a distal end and which define at least one male or female engaging portion at at least one of the distal ends of said pair of connector legs; and a second graft structure having a proximal end and a distal end which has a reciprocal male or female engaging portion at said proximal end and which is adapted to overlap and be attached to one of said pair of connector legs at the distal end of said bifurcated base graft structure, wherein engaging said reciprocal male and female engaging portions provides a means for locking said second graft structure and said bifurcated base graft structure together upon said second graft structure being anchored in situ to form a continuous extension of at least one of said divergent flow lumens of said bifurcated base graft structure; wherein at least one of the bifurcated base graft structure and the second graft structure comprises a first end and a second end, and wherein at least one of the first and the second ends is reinforced with a wire structure which has a plurality of apices extending beyond at least a portion of the corresponding end. - View Dependent Claims (5, 6)
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7. A prosthesis comprising:
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a bifurcated base graft structure which defines a common flow lumen at a proximal end and a pair of connector legs which define divergent flow lumens from the common flow lumen at a distal end and which define at least one male engaging portion at at least one of the distal ends of said at least two connector legs; and a second graft structure having a proximal end and a distal end which has a female engaging portion at said proximal end and which is adapted to overlap and be attached to one of the male engaging portions of said pair of connector legs at the distal end of said bifurcated base graft structure, wherein engaging said male and female engaging portions provides a means for locking said second graft structure and said bifurcated base graft structure together upon said second graft structure being anchored in situ over said at least one male engaging portion to form a continuous extension of at least one of said divergent flow lumens of said bifurcated base graft structure. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A prosthesis comprising:
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a bifurcated base graft structure which defines a common flow lumen at a proximal end and a pair of connector legs which define divergent flow lumens from the common flow lumen at a distal end and which define at least one male or female engaging portion at at least one of the distal ends of said pair of connector legs; and a second graft structure having a proximal end and a distal end which has a reciprocal male or female engaging portion at said proximal end and which is adapted to overlap and be attached to one of the of said pair of connector legs at the distal end of said bifurcated base graft structure, wherein engaging said reciprocal male and female engaging portions provides a means for locking said second graft structure and said bifurcated base graft structure together upon said second graft structure being anchored in situ to form a continuous extension of at least one of said divergent flow lumens of said bifurcated base graft structure; wherein at least one of the bifurcated base graft structure and the second graft structure comprises a first end and a second end, and wherein at least one of the first and second ends is provided with a wire structure which has a plurality of apices extending beyond at least a portion of the corresponding end. - View Dependent Claims (15)
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Specification