Patent ID: 7121832

Claim:
A three-dimensional surgery simulation system for generating a three-dimensional surgery simulation result of an anatomical part undergoing a simulated surgical procedure, comprising: a display unit; a three-visual imaging units adapted to be worn by an operator for viewing three-dimensional images on said display unit; a storage unit for storing a plurality of voxelized three-dimensional model (x,y,z coordinate) image data sets, including at least one of a pre-operation anatomical data set, a surgical instrument data set, an implant data set, and a simulation result data set; an input unit adapted to be operated by the operator for controlling progress of the simulated surgical procedure; and a computing unit coupled to said display unit, said storage unit and said input unit, said computing unit computing the simulation result data in accordance with said voxelized three-dimensional model image data sets and under the control of said input unit, and controlling said display unit to permit viewing of the surgery simulation result in three-dimensional form thereon by the operator when the operator wears said visual imaging unit; wherein, when said computing unit detects the surgery simulation result to have a first boundary face with a discontinuous edge that is common to at least a second boundary face, said computing unit processes the first and second boundary faces as a common closed surface, and assigns two voxels sharing the common closed surface as seeds for seed-and-flood algorithm computations during surface voxelization in the generation of the simulation result data, and wherein the computing unit transforms a specified rotation center to a boundary voxel of one endmost column with minimax x, y coordinates by transforming an anatomical structure and then computing a new place of the boundary voxel with opposite x, y coordinates, approximating a rotation by a shear.