US6576007B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for intraluminal placement of a bifurcated intraluminal graft
Assignee: W.L. Gore and Associates Inc
•
Filing: 2001-03-27
•
Granted: 2003-06-10
•
Expires: 2021-03-27
Abstract
Abstract Methods and apparatus for placing a bifurcated aortic graft, with extensions, into a body lumen. An aortic graft is provided with a unique combination of self-expanding a balloon expandable wires. The aortic graft is bifurcated and includes ipsilateral and contralateral legs. Two extension grafts are provided for frictional engagement with the legs of the aortic graft. For placement of the bifurcated aortic graft with extensions, an introducer assembly including a dilator and a sheath assembly provides access for the introduction of a main catheter and a directional catheter. The main catheter is provided for deployment of the bifurcated aortic graft within the lumen of a vessel. A balloon is provided on the main catheter for expanding the balloon-expandable wires of the aortic graft. The directional catheter, which includes a deflecting spring portion, permits placement of a guidewire through the ipsilateral leg and into the contralateral leg of the aortic graft. In turn, a second introducer sheath and a second catheter assembly are provided contralaterally for introduction of a graft extension. Upon balloon-expansion, the graft extension is frictionally engaged with the contralateral leg of the aortic graft. A third catheter assembly including a second extension graft is provided for introduction of the extension graft and balloon-expansion thereof for frictional engagement with the ipsilateral leg of the graft.
Inventors
- 👤 Mark Dehdashtian
- 👤 Geoffrey H. White
- 👤 Weiyun Yu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:59
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/86; A61F2/89; A61F2/95; A61F2/954; A61F2/958; A61F2002/065; A61F2002/075; A61F2002/826; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2250/00; A61F2250/0014; A61F2250/0048; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
145 words
An intraluminal prosthesis comprising: a trouser graft having a trunk which is circular in cross-section and has an external surface and an internal surface, the trunk comprising a first trunk diameter at an upstream end conformable to the diameter of the vessel to which it will be attached and a second trunk diameter at a downstream end which is different from the first trunk diameter; two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a trunk leg diameter; at least one expandable wireform joined to and extending around the external surface of the trunk adjacent to the septum region; and a tubular extension overlappingly connectable to a downstream end of one of the two trunk legs, the tubular extension having a tubular extension diameter conformable to the trunk leg diameter to provide a consistent interface therewith.
Claim 2
Dependent Claim
145 words
An intraluminal prosthesis comprising: a trouser graft having a trunk which is circular in cross-section and has an external surface and an internal surface, the trunk comprising a first trunk diameter at an upstream end conformable to the diameter of the vessel to which it will be attached and a second trunk diameter at a downstream end which is different from the first trunk diameter; two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a trunk leg diameter; at least one expandable wireform joined to and extending around the external surface of the trunk adjacent to the septum region; and a tubular extension overlappingly connectable to a downstream end of one of the two trunk legs, the tubular extension having a tubular extension diameter conformable to the trunk leg diameter to provide a consistent interface therewith.
Claim 3
Dependent Claim
28 words
The intraluminal prosthesis of claim 1 wherein the first trunk diameter is greater than the second trunk diameter and the trunk tapers between the upstream and downstream ends.
Claim 4
Dependent Claim
28 words
The intraluminal prosthesis of claim 1 wherein the first trunk diameter is less than the second trunk diameter and the trunk tapers between the upstream and downstream ends.
Claim 5
Dependent Claim
17 words
The intraluminal prosthesis of claim 1 wherein the tubular extension diameter is substantially uniform throughout its length.
Claim 6
Dependent Claim
59 words
The intraluminal prosthesis of claim 1 herein the tubular extension has a first tubular extension diameter at an upstream end which is conformable to the trunk leg diameter to provide a consistent interface therewith and a second tubular extension diameter at a downstream end which is conformable to the diameter of the vessel to which it will be attached.
Claim 7
Dependent Claim
31 words
The intraluminal prosthesis of claim 5 wherein the first tubular extension diameter is greater than the second tubular extension diameter and the tubular extension tapers between the upstream and downstream ends.
Claim 8
Dependent Claim
31 words
The intraluminal prosthesis of claim 5 wherein the first tubular extension diameter is less than the second tubular extension diameter and the tubular extension tapers between the upstream and downstream ends.
Claim 9
Dependent Claim
30 words
The intraluminal prosthesis of claim 1 wherein the two legs are circular in cross-section and the combined diameters of their respective leg diameters is equal to the second trunk diameter.
Claim 10
Dependent Claim
24 words
The intraluminal prosthesis of claim 8 wherein the second trunk diameter is 26 mm and the leg diameter of each leg is 13 mm.
Claim 11
Dependent Claim
17 words
The intraluminal prosthesis of claim 9 , wherein the expandable wireform is upstream from the septum region.
Claim 12
Dependent Claim
29 words
The intraluminal prosthesis of claim 9 , further comprising a second expandable wireform joined to and extending around the internal surface of the trunk adjacent to the upstream end.
Claim 13
Dependent Claim
17 words
The intraluminal prosthesis of claim 11 , wherein the expandable wireform is upstream from the septum region.
Claim 14
Dependent Claim
29 words
The intraluminal prosthesis of claim 11 , further comprising a second expandable wireform joined to and extending around the internal surface of the trunk adjacent to the upstream end.
Claim 15
Dependent Claim
144 words
An intraluminal prosthesis comprising: a trouser graft comprising a trunk which is circular in cross-section and having a trunk diameter, the trunk having an internal surface and an internal surface; two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a trunk leg diameter; at least one expandable wireform joined to and extending around the external surface of the trunk adjacent to the septum region; and a first tubular extension overlappingly connectable to a downstream end of one of the two trunk legs, the first tubular extension having a first tubular extension diameter at an upstream end which is conformable to the trunk leg diameter to ride a consistent interface therewith and a second tubular extension diameter at a downstream end which is conformable to the diameter of the vessel to which it will be attached.
Claim 16
Dependent Claim
144 words
An intraluminal prosthesis comprising: a trouser graft comprising a trunk which is circular in cross-section and having a trunk diameter, the trunk having an internal surface and an internal surface; two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a trunk leg diameter; at least one expandable wireform joined to and extending around the external surface of the trunk adjacent to the septum region; and a first tubular extension overlappingly connectable to a downstream end of one of the two trunk legs, the first tubular extension having a first tubular extension diameter at an upstream end which is conformable to the trunk leg diameter to ride a consistent interface therewith and a second tubular extension diameter at a downstream end which is conformable to the diameter of the vessel to which it will be attached.
Claim 17
Dependent Claim
31 words
The intraluminal prosthesis of claim 14 wherein the first tubular extension diameter is greater than the second tubular extension diameter and the tubular extension tapers between the upstream and downstream ends.
Claim 18
Dependent Claim
31 words
The intraluminal prosthesis of claim 14 wherein the first tubular extension diameter is less than the second tubular extension diameter and the tubular extension tapers between the upstream and downstream ends.
Claim 19
Dependent Claim
16 words
The intraluminal prosthesis of claim 14 wherein the trunk diameter is substantially uniform throughout its length.
Claim 20
Dependent Claim
50 words
The intraluminal prosthesis of claim 14 wherein the trunk has a first trunk diameter at an upstream end which is conformable to the diameter of the vessel to which it will be attached and a second trunk diameter at a downstream end which is different from the first trunk diameter.
Claim 21
Dependent Claim
28 words
The intraluminal prosthesis of claim 18 wherein the first trunk diameter is greater than the second trunk diameter and the trunk tapers between the upstream and downstream ends.
Claim 22
Dependent Claim
28 words
The intraluminal prosthesis of claim 18 wherein the first trunk diameter is less than the second trunk diameter and the trunk tapers between the upstream and downstream ends.
Claim 23
Dependent Claim
17 words
The intraluminal prosthesis of claim 14 , wherein the expandable wireform is upstream from the septum region.
Claim 24
Dependent Claim
29 words
The intraluminal prosthesis of claim 14 , further comprising a second expandable wireform joined to and extending around the internal surface of the trunk adjacent to the upstream end.
Claim 25
Dependent Claim
181 words
An intraluminal prosthesis comprising: a trouser graft having a trunk which is circular in cross-section and has an external surface and an internal surface, the trunk comprising a first trunk diameter at an upstream end which is conformable to the diameter of the vessel to which it will be attached and a second trunk diameter at a downstream end which is different from the first trunk diameter; two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a trunk leg diameter; at least one expandable wireform joined to and extending around the external surface of the trunk adjacent to the septum region; and a first tubular extension overlappingly connectable to a downstream end of one of the two trunk legs, the first tubular extension having a first tubular extension diameter at an upstream end which is conformable to the trunk leg diameter to provide a consistent interface therewith and a second tubular extension diameter at a downstream end which is conformable to the diameter of the vessel to which it will be attached.
Claim 26
Dependent Claim
181 words
An intraluminal prosthesis comprising: a trouser graft having a trunk which is circular in cross-section and has an external surface and an internal surface, the trunk comprising a first trunk diameter at an upstream end which is conformable to the diameter of the vessel to which it will be attached and a second trunk diameter at a downstream end which is different from the first trunk diameter; two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a trunk leg diameter; at least one expandable wireform joined to and extending around the external surface of the trunk adjacent to the septum region; and a first tubular extension overlappingly connectable to a downstream end of one of the two trunk legs, the first tubular extension having a first tubular extension diameter at an upstream end which is conformable to the trunk leg diameter to provide a consistent interface therewith and a second tubular extension diameter at a downstream end which is conformable to the diameter of the vessel to which it will be attached.
Claim 27
Independent Claim
228 words
A method of implanting a modular intraluminal prosthesis while providing for a consistent interface between the modular components of the prosthesis comprising the following steps: determining a main vessel diameter and a branch vessel diameter; providing a bifurcated graft comprising a first trunk diameter at an upstream end which will conform to the main vessel diameter and a second trunk diameter at a downstream end which is different from the first trunk diameter, the bifurcated graft having an external surface and an internal surface, and further comprising two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a standardized trunk leg diameter, and at least one self-expanding wireform joined to and extending around the external surface of the graft adjacent to the septum region; and endoluminally delivering the bifurcated graft to an implantation site and expanding the bifurcated graft with a balloon catheter so that the upstream end of the graft is in contact with the main vessel; providing a tubular extension having a tubular extension diameter which will conform to the standardized trunk leg diameter; endoluminally delivering the tubular extension into position with a first end within one of the two trunk legs; and expanding the tubular extension with a balloon catheter so that it overlappingly connects to the downstream end of the one of the two trunk legs.
Claim 28
Independent Claim
228 words
A method of implanting a modular intraluminal prosthesis while providing for a consistent interface between the modular components of the prosthesis comprising the following steps: determining a main vessel diameter and a branch vessel diameter; providing a bifurcated graft comprising a first trunk diameter at an upstream end which will conform to the main vessel diameter and a second trunk diameter at a downstream end which is different from the first trunk diameter, the bifurcated graft having an external surface and an internal surface, and further comprising two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a standardized trunk leg diameter, and at least one self-expanding wireform joined to and extending around the external surface of the graft adjacent to the septum region; and endoluminally delivering the bifurcated graft to an implantation site and expanding the bifurcated graft with a balloon catheter so that the upstream end of the graft is in contact with the main vessel; providing a tubular extension having a tubular extension diameter which will conform to the standardized trunk leg diameter; endoluminally delivering the tubular extension into position with a first end within one of the two trunk legs; and expanding the tubular extension with a balloon catheter so that it overlappingly connects to the downstream end of the one of the two trunk legs.
Claim 29
Dependent Claim
33 words
The method of claim 24 wherein the bifurcated graft provided has a first trunk diameter which is greater than the second trunk diameter and the trunk tapers between the upstream and downstream ends.
Claim 30
Dependent Claim
33 words
The method of claim 24 wherein the bifurcated graft provided has a first trunk diameter which is less than the second trunk diameter and the trunk tapers between the upstream and downstream ends.
Claim 31
Dependent Claim
98 words
The method of claim 24 further comprising the steps of: providing a tubular extension having a first tubular extension diameter at a first end which will conform to the standardized trunk leg diameter and a second tubular extension diameter at a second end which will conform to a branch vessel diameter; and expanding the tubular extension with a balloon catheter so that the first end of the tubular extension overlappingly connects to the downstream end of the one of the two trunk legs and the second end of the tubular extension is in contact with the branch vessel.
Claim 32
Dependent Claim
38 words
The method of claim 27 wherein the tubular extension provided has a first tubular extension diameter that is greater than the second tubular extension diameter and the tubular extension tapers between the first end and the second end.
Claim 33
Dependent Claim
38 words
The method of claim 27 wherein the tubular extension provided has a first tubular extension diameter that is less than the second tubular extension diameter and the tubular extension tapers between the first end and the second end.
Claim 34
Dependent Claim
22 words
The method of implanting a modular intraluminal prosthesis of claim 24 , wherein the expandable wireform is upstream from the septum region.
Claim 35
Dependent Claim
34 words
The method of implanting a modular intraluminal prosthesis of claim 24 , further comprising a second expandable wireform joined to and extending around the internal surface of the graft adjacent to the upstream end.
Claim 36
Independent Claim
240 words
A method of implanting a modular intraluminal prosthesis while providing for a consistent interface between the modular components of the prosthesis comprising the following steps: determining a main vessel diameter and a branch vessel diameter; providing a bifurcated graft comprising a diameter which will conform to the main vessel diameter, two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a standardized trunk leg diameter, the graft further comprising at least one expandable wireform joined to and extending around the external surface of the graft adjacent to the septum region; endoluminally delivering the bifurcated graft to an implantation site and expanding the bifurcated graft with a balloon catheter so that the upstream end of the graft is in contact with the main vessel; providing a tubular extension having a first tubular extension diameter at a first end which will conform to the standardized trunk leg diameter and second tubular extension diameter at a second end which will conform to a branch vessel diameter; endoluminally delivering the tubular extension into position with the first end of the tubular extension within one of the two trunk legs; and expanding the tubular extension with a balloon catheter so that the first end of the tubular extension overlappingly connects to the downstream end of the one of the two trunk legs and the second end of the tubular extension is in contact with the branch vessel.
Claim 37
Independent Claim
240 words
A method of implanting a modular intraluminal prosthesis while providing for a consistent interface between the modular components of the prosthesis comprising the following steps: determining a main vessel diameter and a branch vessel diameter; providing a bifurcated graft comprising a diameter which will conform to the main vessel diameter, two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a standardized trunk leg diameter, the graft further comprising at least one expandable wireform joined to and extending around the external surface of the graft adjacent to the septum region; endoluminally delivering the bifurcated graft to an implantation site and expanding the bifurcated graft with a balloon catheter so that the upstream end of the graft is in contact with the main vessel; providing a tubular extension having a first tubular extension diameter at a first end which will conform to the standardized trunk leg diameter and second tubular extension diameter at a second end which will conform to a branch vessel diameter; endoluminally delivering the tubular extension into position with the first end of the tubular extension within one of the two trunk legs; and expanding the tubular extension with a balloon catheter so that the first end of the tubular extension overlappingly connects to the downstream end of the one of the two trunk legs and the second end of the tubular extension is in contact with the branch vessel.
Claim 38
Dependent Claim
38 words
The method of claim 32 wherein the tubular extension provided has a first tubular extension diameter that is greater than the second tubular extension diameter and the tubular extension tapers between the first end and the second end.
Claim 39
Dependent Claim
38 words
The method of claim 32 wherein the tubular extension provided has a first tubular extension diameter that is less than the second tubular extension diameter and the tubular extension tapers between the first end and the second end.
Claim 40
Dependent Claim
113 words
The method of claim 32 further comprising the steps of: providing a bifurcated graft comprising a trunk having a first trunk diameter at an upstream end which will conform to the main vessel diameter and a second trunk diameter at a downstream end which is different from the first trunk diameter, the bifurcated graft further comprising two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a standardized trunk leg diameter; and endoluminally delivering the bifurcated graft to an implantation site and expanding the bifurcated graft with a balloon catheter so that the upstream end of the graft is in contact with the main vessel.
Claim 41
Dependent Claim
33 words
The method of claim 35 wherein the bifurcated graft provided has a first trunk diameter which is greater than the second trunk diameter and the trunk tapers between the upstream and downstream ends.
Claim 42
Dependent Claim
33 words
The method of claim 35 wherein the bifurcated graft provided has a first trunk diameter which is less than the second trunk diameter and the trunk tapers between the upstream and downstream ends.
Claim 43
Dependent Claim
22 words
The method of implanting a modular intraluminal prosthesis of claim 31 , wherein the expandable wireform is upstream from the septum region.
Claim 44
Dependent Claim
34 words
The method of implanting a modular intraluminal prosthesis of claim 32 , further comprising a second expandable wireform joined to and extending around the internal surface of the graft adjacent to the upstream end.
Claim 45
Independent Claim
268 words
A method of implanting a modular intraluminal prosthesis while providing for a consistent interface between the modular components of the prosthesis comprising the following steps: determining a main vessel diameter and a branch vessel diameter; providing a graft comprising a trunk having a first trunk diameter at an upstream end which will conform to the main vessel diameter and a second trunk diameter at a downstream end which is different from the first trunk diameter, the bifurcated graft further comprising two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a standardized trunk leg diameter, and at least one expandable wireform joined to and extending around the external surface of the trunk adjacent to the septum region; and endoluminally delivering the bifurcated graft to an implantation site and expanding the bifurcated graft with a balloon catheter so that the upstream end of the graft is in contact with the main vessel; providing a tubular extension having a first tubular extension diameter at a first end which will conform to the standardized trunk leg diameter and a second tubular extension diameter at a second end which will conform to a branch vessel diameter; endoluminally delivering the tubular extension into position with the first end of the tubular extension within one of the two legs; and expanding the tubular extension with a balloon catheter so that the first end of the tubular extension overlappingly connects to the downstream end of the one of the two trunk legs and the second end of the tubular extension is in contact with the branch vessel.
Claim 46
Independent Claim
268 words
A method of implanting a modular intraluminal prosthesis while providing for a consistent interface between the modular components of the prosthesis comprising the following steps: determining a main vessel diameter and a branch vessel diameter; providing a graft comprising a trunk having a first trunk diameter at an upstream end which will conform to the main vessel diameter and a second trunk diameter at a downstream end which is different from the first trunk diameter, the bifurcated graft further comprising two trunk legs diverging in a downstream direction from the trunk at a septum region, each leg having a standardized trunk leg diameter, and at least one expandable wireform joined to and extending around the external surface of the trunk adjacent to the septum region; and endoluminally delivering the bifurcated graft to an implantation site and expanding the bifurcated graft with a balloon catheter so that the upstream end of the graft is in contact with the main vessel; providing a tubular extension having a first tubular extension diameter at a first end which will conform to the standardized trunk leg diameter and a second tubular extension diameter at a second end which will conform to a branch vessel diameter; endoluminally delivering the tubular extension into position with the first end of the tubular extension within one of the two legs; and expanding the tubular extension with a balloon catheter so that the first end of the tubular extension overlappingly connects to the downstream end of the one of the two trunk legs and the second end of the tubular extension is in contact with the branch vessel.
Claim 47
Dependent Claim
22 words
The method of implanting a modular intraluminal prosthesis of claim 40 , wherein the expandable wireform is upstream from the septum region.
Claim 48
Dependent Claim
34 words
The method of implanting a modular intraluminal prosthesis of claim 40 , further comprising a second expandable wireform joined to and extending around the internal surface of the graft adjacent to the upstream end.
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