Fenestrated endoluminal stent system
First Claim
1. An intraluminal prosthesis for strengthening a main lumen and a branch lumen in direct fluid communication with the main lumen, the prosthesis comprising:
- a tubular graft comprising a flexible body having a wall with a fenestration; and
a flexible stent comprising a body having a radially expandable elongated member with a passage extending longitudinally therethrough, the flexible stent being expandable from an unexpanded state to an expanded state, the body having at least one interconnection member coupled between a first longitudinal segment and a second longitudinal segment, each of the longitudinal segments including a plurality of laterally interconnected cells, each cell of said longitudinal segment defining a first open space with a first area, and wherein the at least one interconnection member defines lateral edges of a second open space and the first and second longitudinal segments define longitudinal edges of the second open space, the second open space having a second area larger than the first area through the side of the flexible stent, wherein the second area of the second open space, when the flexible stent is in the expanded state, is sized to receive a sufficient amount of tissue prolapse therethrough and within the passage to anchor the flexible stent within said branch lumen,wherein the flexible stent is intraluminally coupled to the fenestration of the tubular graft, wherein the at least one interconnection member includes a first arm coupled to the first longitudinal segment and a second arm coupled to the first arm and the second longitudinal segment, where, when the flexible stent is in the unexpanded state, the first and second arms are angled relative to each other at a first angle, wherein, when the flexible stent is in the expanded state, the first and second arms are angled relative to each other at a second angle greater than the first angle, wherein the first angle increases to the second angle of 180 degrees during expansion of the flexible stent.
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Accused Products
Abstract
An intraluminal prosthesis is provided for strengthening a main lumen and a branch lumen in direct fluid communication with the main lumen. The prosthesis may comprise a tubular graft and a flexible stent. The tubular graft may include a flexible body having a wall with a fenestration. The flexible stent may include a body with at least one open space to encourage tissue prolapse. The flexible stent may be configured for intraluminal coupling to the fenestration of the tubular graft, so that the entire prosthesis may be assembled and anchored into a main lumen and a branch lumen with a minimally invasive procedure. The open space may encourage tissue prolapse, which may act to anchor the flexible stent to the branch lumen.
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Citations
16 Claims
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1. An intraluminal prosthesis for strengthening a main lumen and a branch lumen in direct fluid communication with the main lumen, the prosthesis comprising:
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a tubular graft comprising a flexible body having a wall with a fenestration; and a flexible stent comprising a body having a radially expandable elongated member with a passage extending longitudinally therethrough, the flexible stent being expandable from an unexpanded state to an expanded state, the body having at least one interconnection member coupled between a first longitudinal segment and a second longitudinal segment, each of the longitudinal segments including a plurality of laterally interconnected cells, each cell of said longitudinal segment defining a first open space with a first area, and wherein the at least one interconnection member defines lateral edges of a second open space and the first and second longitudinal segments define longitudinal edges of the second open space, the second open space having a second area larger than the first area through the side of the flexible stent, wherein the second area of the second open space, when the flexible stent is in the expanded state, is sized to receive a sufficient amount of tissue prolapse therethrough and within the passage to anchor the flexible stent within said branch lumen, wherein the flexible stent is intraluminally coupled to the fenestration of the tubular graft, wherein the at least one interconnection member includes a first arm coupled to the first longitudinal segment and a second arm coupled to the first arm and the second longitudinal segment, where, when the flexible stent is in the unexpanded state, the first and second arms are angled relative to each other at a first angle, wherein, when the flexible stent is in the expanded state, the first and second arms are angled relative to each other at a second angle greater than the first angle, wherein the first angle increases to the second angle of 180 degrees during expansion of the flexible stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification