Bifurcated highly conformable medical device branch access
First Claim
1. A multi-lumen stent graft comprising:
- a graft having a first end and a second end and forming a primary lumen therebetween and a secondary lumen in fluid communication with the primary lumen, the graft being supported by a primary stent and composed of an outermost tube and an innermost tube having an inner surface and an outer surface continuous about a perimeter of the primary lumen at the secondary lumen;
an exterior of the primary lumen being defined by the outermost tube configured to contact a vessel wall and an interior of the primary lumen being defined by the inner surface of the innermost tube; and
an exterior of the secondary lumen being defined by a portion of the inner surface of the innermost tube and an interior of the secondary lumen being defined by a portion of the outer surface of the innermost tube, the secondary lumen disposed between the first end and the second end of the graft and contained inside of the primary lumen, and a secondary stent arranged along the portion of the outer surface of the innermost tube defining the secondary lumen.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention comprises a highly conformable stent graft with an optional portal for a side branch device. Said stent graft comprises a graft being supported by a stent, wherein said stent comprises undulations each which comprise apices in opposing first and second directions and a tape member attached to said stent and to said graft such that the tape member edge is aligned to the edge of the apices in the first direction of the each of the undulations, thus confining the apices in the first direction of the undulations to the graft and wherein the apices in the second direction of the undulation are not confined relative to the graft; wherein said graft forms unidirectional pleats where longitudinally compressed and wherein said apices in the first direction of said undulation is positioned under an adjacent pleat when compressed. The invention also discloses and claims methods of making and using said highly conformable stent graft and method of making the optional portal.
30 Citations
30 Claims
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1. A multi-lumen stent graft comprising:
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a graft having a first end and a second end and forming a primary lumen therebetween and a secondary lumen in fluid communication with the primary lumen, the graft being supported by a primary stent and composed of an outermost tube and an innermost tube having an inner surface and an outer surface continuous about a perimeter of the primary lumen at the secondary lumen; an exterior of the primary lumen being defined by the outermost tube configured to contact a vessel wall and an interior of the primary lumen being defined by the inner surface of the innermost tube; and an exterior of the secondary lumen being defined by a portion of the inner surface of the innermost tube and an interior of the secondary lumen being defined by a portion of the outer surface of the innermost tube, the secondary lumen disposed between the first end and the second end of the graft and contained inside of the primary lumen, and a secondary stent arranged along the portion of the outer surface of the innermost tube defining the secondary lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stent graft for implantation in a bifurcated body lumen having a main branch vessel and a side branch vessel, wherein the stent graft comprises:
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a graft, said graft composed of an innermost tube with an opening and an outermost tube with an opening, said graft extending along a longitudinal axis from a distal end to a proximal end and defining a main lumen extending therethrough, said graft being supported by a primary stent, the innermost tube having an inner surface and an outer surface; an exterior of the primary lumen being defined by the outermost tube configured to contact a vessel wall and an interior of the primary lumen being defined by the inner surface of the innermost tube; and a secondary lumen disposed between the innermost tube and outermost tube of said graft, an exterior of the secondary lumen being defined by a portion of the inner surface of the innermost tube and an interior of the secondary lumen being defined by a portion of the outer surface of the innermost tube, said secondary lumen portion having a first end and a second end positioned between the distal and proximal ends of said graft and extending parallel to the primary lumen, and a secondary stent arranged along the portion of the outer surface of the innermost tube defining the secondary lumen wherein said secondary lumen is in fluid communication with the primary lumen through said openings of said innermost and outermost tubes and the innermost tube is continuous about a perimeter of the primary lumen at the secondary lumen. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification