Integrated mesh high metal to vessel ratio stent and method

#This application claims the benefit and priority of U.S. application Ser. No. 13/430,942 filed Mar. 27, 2012, entitled “High Metal to Vessel Ratio Stent and Method” and is herein incorporated by reference for all purposes.

#The present application relates to an intra-vascular device and method. More particularly, the present application relates to a device for treatment of intra-vascular diseases.

#A conventional stent-graft typically includes a radially expandable reinforcement structure, formed from a plurality of annular stent rings, and a cylindrically shaped layer of graft material, sometimes called graft cloth, defining a lumen to which the stent rings are coupled. Main stent-grafts are well known for use in tubular shaped human vessels.

#FIG. 1 is a perspective view of an integrated mesh high metal to vessel ratio stent in its final configuration in accordance with one embodiment;

#FIG. 2 is a cross-sectional view of the integrated mesh high metal to vessel ratio stent of FIG. 1;

#FIG. 3 is an enlarged plan view of a region of the integrated mesh high metal to vessel ratio stent of FIG. 1 in its final configuration in accordance with one embodiment;

#In the following description, the same or similar elements are labeled with the same or similar reference numbers.

#As an overview and in accordance with one embodiment, referring to FIG. 16, a method includes covering ostai 1422, 1424 of branch vessels 1408, 1410 emanating from a main vessel 1404 with an integrated mesh high metal to vessel ratio stent 100. A metal to vessel ratio of integrated mesh high metal to vessel ratio stent 100 is sufficiently high to encourage tissue ingrowth around integrated mesh high metal to vessel ratio stent 100 yet is sufficiently low to ensure perfusion of branch vessels 1408, 1410 through integrated mesh high metal to vessel ratio stent 100. The ingrowth of tissue provides secure fixation and sealing of integrated mesh high metal to vessel ratio stent 100 to main vessel 1404 thus minimizing the risk of endoleaks and migration.

#Further, deployment of integrated mesh high metal to vessel ratio stent 100 is relatively simple thus minimizing the complexity and thus risk of deploying integrated mesh high metal to vessel ratio stent 100. More particularly, as the entire integrated mesh high metal to vessel ratio stent 100 is permeable, integrated mesh high metal to vessel ratio stent 100 is deployed without having to rotationally position integrated mesh high metal to vessel ratio stent 100 to be aligned with branch vessels 1408, 1410 as is currently done with deployment of branched and fenestrated devices.