Generation of Artificial Joint Surface Mesh Structure

—Improvement of the ABF Method Using Rotational Symmetry of Geometric Shapes—

Abstract

Recently, a longer life and advanced functions of artificial joints are required. To improve the fixation of the artificial joint, we propose a generation method of a model with a porous structure based on a triangular mesh on the surface layer. The three-dimensional model is parameterized using the ABF method, and equilateral triangles spread on the plane are projected onto the surface of the three-dimensional model. For models that can not be appropriately parameterized by the ABF method, we propose a method to improve the ABF method by adding a constraint condition using rotation symmetry of regular triangle texture.