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首页> 外文会议>International Conference on Computer Graphics Theory and Applications >Virtual Pedicle Screw Insertion Surgical Simulation with Haptic Rendering
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Virtual Pedicle Screw Insertion Surgical Simulation with Haptic Rendering

机译：虚拟椎弓根螺钉插入手术模拟与触觉渲染

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Due to the surrounding of the vital nerves and aortas, pedicle screw insertion is recognised as one of the most dangerous procedure. An instant, efficient and professional tool is in the extreme shortage for the surgeons' training. In this paper, we proposed a practical framework for the virtual pedicle screw insertion surgery that can be used in the training system. First, a fast collision detection method was developed to progressively determine the contact area at a frequent iteration. Second, a mechanistic haptic model was proposed to implement the bone drilling force, which is qualified to simulate force changes under various tool geometries, cutting conditions and moving velocities. Third, a simplified deformation method was designed to mimic the formation of the drilling hole. Visual plausibility and time performance could be simultaneously obtained with these methods to satisfy the need of the virtual surgical simulation.
机译：由于生命神经和主动脉的周围，椎弓根螺钉插入被认为是最危险的过程之一。 即时，高效，专业的工具是外科医生培训的极端短缺。 在本文中，我们提出了可用于训练系统的虚拟椎弓根螺钉插入手术的实用框架。 首先，开发了快速碰撞检测方法以逐步迭代地确定接触面积。 其次，提出了一种机械触觉模型来实现骨钻力，这有资格在各种工具几何形状，切割条件和移动速度下模拟力变化。 第三，设计了一种简化的变形方法以模仿钻孔的形成。 通过这些方法可以同时获得视觉合理性和时间性能，以满足虚拟手术模拟的需要。

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