Soft tissue modelling through autowaves for surgery simulation

被引：0
作者：
Yongmin Zhong
Bijan Shirinzadeh
Gursel Alici
Julian Smith
机构：
[1] Monash University,Robotics and Mechatronics Research Laboratory, Department of Mechanical Engineering
[2] University of Wollongong,School of Mechanical, Materials, and Mechatronics Engineering
[3] Monash University,Department of Surgery, Monash Medical Centre
来源：
Medical and Biological Engineering and Computing | 2006年 / 44卷
关键词：
Virtual reality; Surgery simulation; Soft tissue deformation; Autowaves; Haptic feedback and analogous systems;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Modelling of soft tissue deformation is of great importance to virtual reality based surgery simulation. This paper presents a new methodology for simulation of soft tissue deformation by drawing an analogy between autowaves and soft tissue deformation. The potential energy stored in a soft tissue as a result of a deformation caused by an external force is propagated among mass points of the soft tissue by non-linear autowaves. The novelty of the methodology is that (i) autowave techniques are established to describe the potential energy distribution of a deformation for extrapolating internal forces, and (ii) non-linear materials are modelled with non-linear autowaves other than geometric non-linearity. Integration with a haptic device has been achieved to simulate soft tissue deformation with force feedback. The proposed methodology not only deals with large-range deformations, but also accommodates isotropic, anisotropic and inhomogeneous materials by simply changing diffusion coefficients.
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