Department of Manufacturing Engineering, Guangdong University of Technology, 100 Outer Ring West Road, Panyu District, Guangzhou 510006, China.
Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 1138656, Japan.
Med Eng Phys. 2020 Apr;78:64-73. doi: 10.1016/j.medengphy.2020.01.007. Epub 2020 Feb 7.
An excessive temperature rise during bone drilling processes can result in osteonecrosis or impairment of the osteogenic potential. However, the effect of geometric parameters of the surgical drill bit, drilling process parameters, and the bone type on the temperature rise have not been fully investigated. In this study, thermocouples are introduced to measure the temperature rise, and three experimental designs are utilized separately to investigate the temperature rise with respect to each parameter, identify the effect of important drill geometric parameters and their interaction on the temperature rise, and develop a quadratic model of the temperature rise with respect to process parameters. The results show that the temperature rise can be significantly affected by geometric parameters of the surgical drill bit, drilling process parameters, and the bone type. The effects of the point angle and the interaction between the web thickness and the helix angle on the temperature rise are very significant. The quadratic regression equation obtained using response surface methodology can provide accurate predictions under a wide range of drilling process conditions, and the optimized drilling process parameters are in good agreement with the experimental results.
在骨钻削过程中，如果温度过高，可能会导致骨坏死或成骨潜能受损。然而，手术钻头的几何参数、钻孔工艺参数以及骨类型对温升的影响尚未得到充分研究。在这项研究中，使用热电偶来测量温升，并分别采用三种实验设计来分别研究每个参数的温升情况，确定重要钻头几何参数及其相互作用对温升的影响，并针对工艺参数开发温升的二次模型。结果表明，温升可受到手术钻头的几何参数、钻孔工艺参数和骨类型的显著影响。点角度和腹板厚度与螺旋角之间的相互作用对温升的影响非常显著。使用响应面法获得的二次回归方程可以在广泛的钻孔工艺条件下提供准确的预测，并且优化的钻孔工艺参数与实验结果非常吻合。
