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Title of Journal: Int J CARS

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Abbravation: International Journal of Computer Assisted Radiology and Surgery

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Springer International Publishing

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DOI

10.1007/s40574-015-0039-8

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1861-6429

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A predictive bone drilling force model for haptic

Authors: Yanping Lin Huajiang Chen Dedong Yu Ying Zhang Wen Yuan
Publish Date: 2016/08/22
Volume: 12, Issue: 1, Pages: 91-98
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Abstract

Bone drilling simulators with virtual and haptic feedback provide a safe costeffective and repeatable alternative to traditional surgical training methods To develop such a simulator accurate haptic rendering based on a force model is required to feedback bone drilling forces based on user input Current predictive bone drilling force models based on bovine bones with various drilling conditions and parameters are not representative of the bone drilling process in bone surgery The objective of this study was to provide a bone drilling force model for haptic rendering based on calibration and validation experiments in fresh cadaveric bones with different bone densitiesUsing a commonly used drill bit geometry 2 mm diameter feed rates 20–60 mm/min and spindle speeds 4000–6000 rpm in orthognathic surgeries the bone drilling forces of specimens from two groups were measured and the calibration coefficients of the specific normal and frictional pressures were determined

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