Device and Method for Stent Graft Fenestration in Situ
First Claim
Patent Images
1. A method comprising:
- deploying a main stent graft within a main vessel over a branch vessel branching from said main vessel, said main stent graft comprising a graft material;
advancing an anchoring balloon of an anchoring balloon catheter through said branch vessel to be adjacent to said main stent graft, said anchoring balloon catheter further comprising an inner member defining an inner member lumen therein;
inflating said anchoring balloon to center said inner member parallel with an axis of said branch vessel and to anchor said anchoring balloon within said branch vessel;
advancing a needle assembly located within a dilator assembly located within said inner member lumen to pierce said graft material of said main stent graft with a needle of said needle assembly forming a needle hole in said graft material; and
advancing said dilator assembly to dilate said needle hole with a dilator of said dilator assembly.
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Accused Products
Abstract
An anchoring balloon of an anchoring balloon catheter is advanced through the branch vessel to be adjacent to the main stent graft within a main vessel. The anchoring balloon is inflated to center an inner member of the anchoring balloon catheter within the branch vessel and to anchor the anchoring balloon within the branch vessel. A needle assembly is advanced to pierce the graft material of the main stent graft with a needle forming a needle hole in the graft material. A dilator assembly is advanced to dilate the needle hole with a dilator.
101 Citations
25 Claims
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1. A method comprising:
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deploying a main stent graft within a main vessel over a branch vessel branching from said main vessel, said main stent graft comprising a graft material; advancing an anchoring balloon of an anchoring balloon catheter through said branch vessel to be adjacent to said main stent graft, said anchoring balloon catheter further comprising an inner member defining an inner member lumen therein; inflating said anchoring balloon to center said inner member parallel with an axis of said branch vessel and to anchor said anchoring balloon within said branch vessel; advancing a needle assembly located within a dilator assembly located within said inner member lumen to pierce said graft material of said main stent graft with a needle of said needle assembly forming a needle hole in said graft material; and advancing said dilator assembly to dilate said needle hole with a dilator of said dilator assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A dilator assembly comprising a dilator for dilating a needle hole in a graft material of a main stent graft, said dilator comprising:
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a bevel; a distal tapering exterior surface; a shoulder, said distal tapering exterior surface extending from said bevel to said shoulder; and a proximal tapering exterior surface extending from said shoulder. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A method comprising:
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deploying a main stent graft within a main vessel over a branch vessel branching from said main vessel, said main stent graft comprising a graft material; advancing an anchoring balloon of an anchoring balloon catheter through said branch vessel to be adjacent to said main stent graft, said anchoring balloon catheter further comprising an inner member defining an inner member lumen therein; inflating said anchoring balloon to center said inner member parallel with an axis of said branch vessel and to anchor said anchoring balloon within said branch vessel; and advancing a hybrid needle-dilator assembly located within said inner member lumen to pierce said graft material of said main stent graft with a sharp tip of a hybrid needle-dilator of said hybrid needle-dilator assembly forming a needle hole in said graft material and to dilate said needle hole with said hybrid needle-dilator.
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24. A needle dilator guiding catheter assembly comprising:
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an anchoring balloon catheter comprising; an inner member defining an inner member lumen; and an anchoring balloon mounted on said inner member, said inner member having a strength sufficient to prevent collapse of said inner member and constriction of said inner member lumen when said anchoring balloon is inflated; a dilator assembly configured to fit in said inner member lumen, said dilator assembly defining a dilator assembly lumen therein, said dilator assembly comprising; a slotted hypotube; and a dilator mounted to said slotted hypotube; a needle assembly configured to fit within said dilator assembly lumen, said needle assembly defining a guidewire lumen therein, said needle assembly comprising; a slotted hypotube; and a needle mounted to said slotted hypotube of said needle assembly; and a user interface comprising; an anchoring balloon catheter handle of said anchoring balloon catheter; a needle actuator handle coupled to said needle assembly; a dilator actuator handle coupled to said dilator assembly; and an actuator shaft comprising; a proximal stop for limiting a proximal travel of said needle actuator handle; a distal stop for limiting a distal travel of said needle actuator handle and for limiting a proximal travel of said dilator actuator handle; and an engagement cap for limiting a distal travel of said dilator actuator handle. - View Dependent Claims (25)
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Specification