Patent ID: 7850725
Filing Date: 2010-12-14
Classification: A61F

Abstract:
1. A stent for placement in a bifurcated body lumen having a main branch and a side branch, the stent comprising: a radially expandable stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween, said body wall defining a plurality of cells and a side opening therethrough, said side opening being larger than each of the cells and configured to allow access to a side branch upon expansion of the stent body, a perimeter of the side opening being continuously concave with respect to a centerpoint of the side opening; and an expandable portion extending into said side opening, said expandable portion comprising: a first element, a second element and a third element, each of said elements having two ends, a length as measured between the ends and a width, the length being greater than the width, wherein one of said two ends is integrally formed with the stent body and wherein another of said two ends is unattached to the stent body, and wherein upon expansion the elements extend outwardly relative to the surface of the stent body so as to extend into the side branch while the stent body is within the main branch.