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基于脉冲的骨锉触觉模拟渲染方法。

Impulse-Based Rendering Methods for Haptic Simulation of Bone-Burring.

出版信息

IEEE Trans Haptics. 2012;5(4):344-55. doi: 10.1109/TOH.2011.69.

Abstract

Bone-burring is a common procedure in orthopedic, dental, and otologic surgeries. Virtual reality (VR)-based surgical simulations with both visual and haptic feedbacks provide novice surgeons with a feasible and safe way to practice their burring skill. However, creating realistic haptic interactions between a high-speed rotary burr and stiff bone is a challenging task. In this paper, we propose a novel interactive haptic bone-burring model based on impulse-based dynamics to simulate the contact forces, including resistant and frictional forces. In order to mimic the lateral and axial burring vibration forces, a 3D vibration model has been developed. A prototype haptic simulation system for the bone-burring procedure has been implemented to evaluate the proposed haptic rendering methods. Several experiments of force evaluations and task-oriented tests were conducted on the prototype system. The results demonstrate the validity and feasibility of the proposed methods.

摘要

骨锉削是骨科、牙科和耳科手术中的常见程序。基于虚拟现实(VR)的手术模拟具有视觉和触觉反馈,为新手外科医生提供了一种可行且安全的方法来练习他们的锉削技能。然而,在高速旋转锉刀和硬骨之间创建逼真的触觉交互是一项具有挑战性的任务。在本文中,我们提出了一种基于冲击动力学的新型交互式触觉骨锉削模型,以模拟接触力,包括阻力和摩擦力。为了模拟侧向和轴向锉削振动力,开发了一个 3D 振动模型。实现了用于骨锉削过程的原型触觉模拟系统,以评估所提出的触觉渲染方法。在原型系统上进行了几次力评估和面向任务的测试实验。结果表明了所提出方法的有效性和可行性。

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