A hybrid condensed finite element model for interactive 3D soft tissue cutting.

As requested from practical operations, it is necessary in the design to provide the ability to real-time cut and suture the tissue in a surgery simulation apart from the deformation simulation. In this paper, we present a deformation model, referred as the hybrid condensed FE model, based on the volumetric finite element method. The most important advantage of this model is its ability to handle the topology change freely with interactive rate in the surgical simulation on current PC platform.