Patent Document ID: 20140114430
Application ID: 13659398
Patent Flag: 0

Claim One:
1. A method for generating a lattice cell shape for a stent made of a lattice of a given material comprising: generating a unit cell model representing the lattice cell, the unit cell model comprising a plurality of geometric primitives interconnected by blending points, each of the geometric primitives defining a G 2 -continuous curve at the blending points; setting a weighting factor to a same value for each one of the plurality of blending points, the weighting factor representing a contribution of a corresponding one of the plurality of blending points to a curvature of an optimal curve; determining a curvature of the G 2 -continuous curve as a function of the weighting factors having the same value; and structurally optimizing the unit cell model by iteratively determining a variable value for the weighting factor value for each one of the plurality of blending points using stress and/or strain characteristics for the given material, determining a new curvature of the G 2 -continuous curve as a function of the variable value, and minimizing said new curvature, thereby obtaining an optimized curve corresponding to an optimized shape of the lattice cell.