Methods for deploying a positioning anchor with a stent-graft
First Claim
1. A method for deploying a double walled anchor intraluminally at an intersection of a main vessel and at least two branch vessels, the anchor inflatable with a fixation media, the deployment method including the steps of:
- providing the anchor, the anchor comprising an inner wall surrounding and defining a primary fluid conduit having an upper opening and a lower opening, an outer wall outside of an exterior of the inner wall, and a fillable void between the inner and outer wall, wherein the inner and outer walls further form at least two arms extending laterally outward from the primary fluid conduit between the upper and lower opening, the inner wall of each arm surrounding and defining at least one lateral fluid conduit in fluid communication with the primary fluid conduit, and wherein the fillable void surrounds the primary fluid conduit, extends into each arm and surrounds each lateral fluid conduit;
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 so as to facilitate blood flow of the main vessel through the primary fluid conduit after deployment;
expanding each arm of the anchor into a separate branch vessel;
expanding the inner wall of each arm to a desired position for the inner wall so as to facilitate blood flow from the primary fluid conduit through the lateral fluid conduits into the branch vessels after deployment of the anchor; and
substantially filling a space between an outside surface of the outer wall and a wall of each of the main vessel and the branch vessels at the intersection of the main and branch vessels by filling the fillable void between the inner wall and the outer wall with the fixation media to inflate the anchor thereby expanding the outer wall to contact the walls of the main vessel and branch vessels.
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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.
397 Citations
21 Claims
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1. A method for deploying a double walled anchor intraluminally at an intersection of a main vessel and at least two branch vessels, the anchor inflatable with a fixation media, the deployment method including the steps of:
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providing the anchor, the anchor comprising an inner wall surrounding and defining a primary fluid conduit having an upper opening and a lower opening, an outer wall outside of an exterior of the inner wall, and a fillable void between the inner and outer wall, wherein the inner and outer walls further form at least two arms extending laterally outward from the primary fluid conduit between the upper and lower opening, the inner wall of each arm surrounding and defining at least one lateral fluid conduit in fluid communication with the primary fluid conduit, and wherein the fillable void surrounds the primary fluid conduit, extends into each arm and surrounds each lateral fluid conduit; 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 so as to facilitate blood flow of the main vessel through the primary fluid conduit after deployment; expanding each arm of the anchor into a separate branch vessel; expanding the inner wall of each arm to a desired position for the inner wall so as to facilitate blood flow from the primary fluid conduit through the lateral fluid conduits into the branch vessels after deployment of the anchor; and substantially filling a space between an outside surface of the outer wall and a wall of each of the main vessel and the branch vessels at the intersection of the main and branch vessels by filling the fillable void between the inner wall and the outer wall with the fixation media to inflate the anchor thereby expanding the outer wall to contact the walls of the main vessel and branch vessels. - 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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Specification