US Patent 7588597 Three-dimensional braided structure stent

A modular luminal endoprosthesis consisting of a framework, generally called a stent, and more particularly an endoprosthesis for blood vessels. The framework (6) of this stent comprises a plurality of interconnected layers (8, 10, 12), each of these layers (8, 10, 12) being formed by two plies of metal wires (14), which are respectively dextrogyratory and laevogyratory, and which are interlaced and form a lattice, a plurality of wires (14) of a given layer (8, 10, 12) being integrated in the lattice of at least one of the adjacent layers (8, 10, 12).