Stent-graft with positioning anchor
First Claim
1. - A double walled anchor for an intra-luminal stent-graft, comprising in combination:
- an inner wall surrounding and defining a primary fluid conduit extending through said anchor;
an outer wall outboard from an exterior of said inner wall;
at least one void between said inner wall and said outer wall, said void adapted to be filled with fixation media; and
at least one of said walls having a contour generally defining an arm surrounding and defining at least one lateral fluid conduit joining with said primary fluid conduit.
6 Assignments
0 Petitions
Accused Products
Abstract
A positioning anchor is provided for a stent-graft for implantation to treat a damaged body lumen. The positioning anchor is generally tubular surrounding a primary fluid conduit. Arms extend laterally from the generally tubular structure of the anchor surrounding lateral fluid conduits. The form of these arms is preferably custom configured to match a particular patient'"'"'s luminal geometry. The anchor thus fits within the luminal geometry to remain in a desired fixed position for implantation of the anchor and any stent-graft coupled to the anchor. The anchor is most preferably formed with two walls having a void therebetween which can be filled with fixation media to further secure the anchor at the desired implantation site. A lumen shaper balloon and delivery catheter are also disclosed for proper delivery, expansion and inflation of the positioning anchor and stent-graft elements according to this invention.
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Citations
97 Claims
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1. - A double walled anchor for an intra-luminal stent-graft, comprising in combination:
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an inner wall surrounding and defining a primary fluid conduit extending through said anchor;
an outer wall outboard from an exterior of said inner wall;
at least one void between said inner wall and said outer wall, said void adapted to be filled with fixation media; and
at least one of said walls having a contour generally defining an arm surrounding and defining at least one lateral fluid conduit joining with said primary fluid conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. - A custom shaped anchor for an intra-luminal stent-graft, comprising in combination:
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a first wall surrounding and defining a primary fluid conduit;
said primary fluid conduit including an inlet into said anchor and an outlet out of said anchor;
said first wall having a contour surrounding and defining at least one lateral fluid conduit joined with said primary fluid conduit within said first wall, such that fluids can pass between said primary fluid conduit and said lateral fluid conduit; and
said contour of said first wall having a particular geometry at least partially following a particular patient'"'"'s luminal anatomy into which said anchor is adapted to be implanted. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. - A method of forming a double walled anchor for an intra-luminal stent-graft, the double walled anchor having an inner wall surrounding and defining a primary fluid conduit extending through said anchor, an outer wall outboard from an exterior of said inner wall, and at least one void between said inner wall and said outer wall, said void adapted to be filled with fixation media, the steps including:
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providing a sacrificial mandrel having a shape and size similar to the void of the double walled anchor;
forming a layer of anchor wall material on surfaces of the sacrificial mandrel; and
removing at least a portion of the sacrificial mandrel to form the void. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. - A method of forming a custom shaped anchor for an intra-luminal stent-graft, the anchor having a first wall surrounding and defining a primary fluid conduit, said contour of said first wall having a particular geometry at least partially following a particular patient'"'"'s luminal anatomy into which said anchor is adapted to be implanted, the steps of the forming method including:
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providing at least one molding surface having a contour following a particular geometry of a particular patient'"'"'s luminal anatomy;
forming the first wall of the anchor against the mold surface; and
removing the mold surface from the first wall. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. - A method for deploying a double walled anchor intra-luminally, the double walled anchor including an inner wall surrounding and defining a primary fluid conduit extending through said anchor, an outer wall outboard from an exterior of said inner wall, and at least one void between said inner wall and said outer wall, said void adapted to be filled with fixation media;
- the deployment method including the steps of;
collapsing the anchor onto a catheter;
advancing the catheter from a lumen insertion point to an implantation site for the anchor;
expanding the inner wall and the outer wall of the anchor away from the catheter to a desired position for the inner wall; and
filling the void between the inner wall and the outer wall with fixation media. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
- the deployment method including the steps of;
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75. - A double walled intra-luminal stent-graft, comprising in combination:
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an inner wall surrounding and defining a primary fluid conduit extending through said stent-graft;
an outer wall outboard from an exterior of said inner wall;
at least one void between said inner wall and said outer wall, said void adapted to be filled with fixation media; and
wherein at least one interconnection is provided within said at least one void, said interconnection spanning said void between said inner wall and said outer wall. - View Dependent Claims (76, 77, 78, 79, 80, 81, 82, 83, 84)
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85. - An inflatable lumen shaper balloon for expanding, positioning and supporting an anchor for an intra-luminal stent-graft during expansion thereof, the inflatable lumen shaper balloon comprising in combination:
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an exterior wall defining a fillable bladder;
at least one arm in the exterior wall extending away from other portions of the exterior wall;
means to attach said exterior wall to an intra-luminal delivery catheter; and
means to inflate said bladder. - View Dependent Claims (86, 87, 88, 89, 90)
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91. - A catheter for delivery of a stent-graft intra-luminally, comprising in combination:
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a guide wire;
a central conduit extending along a stent-graft delivery portion of said catheter, said central conduit including a bypass inlet at a first end of said central conduit closer to said guide wire and a bypass outlet located at a side of said central conduit further from said guide wire than said bypass inlet;
a balloon inflation fluid pathway passing through an interior of said catheter to a balloon inflation fluid port in said stent-graft delivery portion of said catheter; and
a fixation media delivery pathway extending through said catheter to a media delivery port adjacent said stent-graft delivery portion of said catheter. - View Dependent Claims (92, 93, 94, 95, 96, 97)
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Specification