摘要/Abstract

摘要： 近年来，基于力反馈的虚拟手术训练系统以安全、高效、灵活的优势，为年轻医师提高手术技能提供了全新的训练方式。其中，精确的钻骨力和逼真的操作手感是虚拟手术训练的关键，骨组织钻削过程的精确仿真依赖于建立精确的钻骨力预测模型。借助有限元技术建立力预测模型是虚拟训练系统开发中的关键部分。文章从骨模型重建、材料模型、网格模型、钻骨力预测 4个方面梳理了骨组织钻削过程有限元模拟方面的研究现状，主要对骨组织材料模型的构建进行了详细论述，对几种重要模型加以总结，为该研究领域常用的模型提供相对完整的认识，以建立更加精确的钻骨操作力预测模型。
关键词: 虚拟手术训练系统, 力预测模型, 有限元模拟, 骨组织钻削
Abstract:
In recent years, the virtual surgery training system with force feedback has provided a new way for young doctors to improve their surgical skills in a safe, efficient and flexible training method. Precise drilling force and realistic hand feeling of manipulation are the cruxes in the virtual surgery training, and the accurate simulation of bone drilling depends on the accurate establishment of drilling force prediction model. The establishment of force prediction model with finite element analysis is the key part in the development of virtual training system. In this paper, the current research status of finite element analysis of bone drilling presented in four aspects: bone model reconstruction, material model, mesh model and prediction of drilling force, especially the construction of bone tissue material model is discussed in detail and several important models are analyzed. This paper presented a relatively complete overview of the approaches commonly used in this research field to promote the establishment of more accurate force prediction models of bone drilling.
Key words: virtual surgery training system, force prediction model, finite element analysis, bone drilling


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