VR 腹腔鏡下手術トレーニングシステムのための複数の構造梁を用いたリアルタイム臓器変形モデル

概要

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We propose a deformable model for elastic organ based on structural mechanics under the consideration of multi-point-contact for medical training systems using Virtual Reality (VR) technology. In a previous paper, we proposed an organ deformation model which approximates a liver deformation by a single-beam deformation based on the structural mechanics. The calculation cost of the single-beam model is much less than that of the 3D Finite element method (FEM) since the beam consists of one-dimensional elements. In this paper, we propose a multi-beam model under the consideration of multi-point-contact by extending the single-beam model. A real-time deformation can be realized and the proposed model was implemented in the laparoscopic surgery training system.
Japanese Society for Medical Virtual Realityの論文