Patent ID: 7344563
Filing Date: 2008-03-18
Classification: A61F

Abstract:
1. A stent for use at an implant site in a vessel comprising a radially expandable tubular body and an active agent for treatment of the implant site, the tubular body having an interior surface and an exterior surface, the tubular body including a plurality of sinusoidal shaped annular elements and a plurality of connection elements, each annular element being connected to at least one other annular element by at least two connection elements, each connection element having a first end connected to an annular element at a zero point of the sinusoidal shape of the annular element and a second end connected to an adjacent annular element at a zero point of the sinusoidal shape of the adjacent annular element, the tubular body having a plurality of recesses, the active agent being contained within the recesses, the recesses conferring on the elements where they are positioned a hollowed sectional profile of which the recesses occupy a portion of the area of the sectional profile, the geometry of the recesses being such that bending moments of inertia of the elements containing the recesses are not substantially reduced.