Haptic rendering of drilling process in orthopedic surgical simulation based on the volumetric object

Drilling process is a basic skill used in almost all kinds of orthopedic surgeries. Currently, the virtual reality based surgical simulator is still lacking the realism and fidelity to convincingly challenge the actual operation experience on patient. In this paper, to obtain the balance between the...

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Bibliographic Details
Main Authors: Wang, Qiong, Qin, Jing, Wang, Weiming, Shan, Junliang, Zhang, Jing, Liu, Xiaofang, Heng, Pheng-Ann
Format: Conference Proceeding
Language:English
Subjects:
Algorithms
Bones
Collision detection
Computation
Computational modeling
Computer simulation
Data models
Digital signal processing
Drilling
Drilling simulation
Feedback force computation
Force
Haptic interfaces
Haptics
Orthopedics
Solid modeling
Surgery
Surgical simulation
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Summary:Drilling process is a basic skill used in almost all kinds of orthopedic surgeries. Currently, the virtual reality based surgical simulator is still lacking the realism and fidelity to convincingly challenge the actual operation experience on patient. In this paper, to obtain the balance between the high refresh rate of the haptic computation and the well visual result of the virtual environment, we employ a composite data structure to represent the three dimensional bone model. Furthermore, we make some improvements on the traditional voxmap point shell collision detection algorithm to be adapted to the contact model with frequent topology changes. Finally, a force computation method that can handle inhomogeneous bone material is developed based on the mechanical model. With this method, key features of the force sensation changing in the drilling process could be represented in a smooth way.
ISSN:1546-1874
2165-3577
DOI:10.1109/ICDSP.2015.7252049