Advanced endovascular graft
View Patent ↗This invention is a system for the treatment of body passageways; in particular, vessels with vascular disease. The system includes an endovascular graft with a low-profile delivery configuration and a deployed configuration in which it conforms to the morphology of the vessel or body passageway to be treated as well as various connector members and stents. The graft is made from an inflatable graft body section and may be bifurcated. One or more inflatable cuffs may be disposed at either end of the graft body section. At least one inflatable channel is disposed between and in fluid communication with the inflatable cuffs.
1. An endovascular device comprising:
an expandable stent comprising a proximal end comprising proximal apices and an opposed distal end comprising distal apices with the proximal and distal apices being interconnected by struts therein between,
the proximal apices having a proximal apical width;
the distal apices having a distal apical width;
wherein the proximal apical width of the proximal apices is smaller than the distal apical width of the distal apices; and
wherein a ratio of the distal apical width to the proximal apical width is about 10 or higher.
2. The endovascular device of claim 1 , wherein the struts are tapered by having a maximum width near the proximal and distal apices and a minimum width therein between.
3. The endovascular device of claim 2 , wherein a ratio of the maximum width of the struts to the minimum width of the struts is from above about 1 to about 10 or greater.
4. The endovascular device of claim 2 , wherein the maximum width of the struts is from about 0.016 inches to about 0.032 inches, and the minimum width of the struts is from about 0.010 inches to about 0.026 inches.
5. The endovascular device of claim 2 , wherein the maximum width of the struts is from about 0.022 inches to about 0.028 inches, and the minimum width of the struts is from about 0.012 inches to about 0.022 inches.
6. The endovascular device of claim 1 , wherein the stent is a self-expanding stent or a balloon expandable stent.
7. The endovascular device of claim 1 , wherein the stent comprises a material selected from the group consisting of nickel titanium, stainless steel, nickel-cobalt alloy and tantalum.
8. The endovascular device of claim 1 , further comprising a tubular graft, wherein the stent is securably disposed to a portion or an end of the graft.
9. The endovascular device of claim 8 , wherein the proximal end of the stent is securably disposed to a portion or an end of the graft.
10. The endovascular device of claim 8 , wherein the tubular graft comprises an inflatable channel.
11. The endovascular device of claim 8 , wherein the tubular graft comprises one or more layers of fusible material.