分析影响骨锉削过程的工艺参数：一项体外猪研究。
Analysis of the process parameters affecting the bone burring process: An in-vitro porcine study.
机构信息
Department of Mechanical and Materials Engineering, Western University, Ontario, N6A 5B9, London, Canada.
Department of Surgery, Western University, Ontario, N6A 4V2, London, Canada.
出版信息
Int J Med Robot. 2019 Oct;15(5):e2028. doi: 10.1002/rcs.2028. Epub 2019 Aug 23.
BACKGROUND
A stable bone burring process, which avoids thermal osteonecrosis and minimizes harmful vibrations, is important for certain orthopedic surgical procedures, and especially relevant to robot-operated bone burring systems.
METHODS
An experimental characterization of the effects of several bone burring process parameters was performed. Burring parameters were evaluated by resultant bone temperature, tool vibration, and burring force.
RESULTS
An optimal combination of bone burring parameters produced minimums in both bone temperature (<40°C) and tool vibration (<4 g-rms). A cylindrical burr, oriented normal to the specimen, resulted in significantly higher temperatures (50.8 ± 6.8°C) compared with a spherical burr (33.5 ± 4.3°C) (P = .008). Regardless of the parameters tested, burring forces were less than 10 N.
CONCLUSIONS
The recommended configuration, which minimized both bone temperature and vibrations experimentally, was a 6-mm spherical burr at 15 000 rpm with a 2 mm/s feed rate.
背景
在某些矫形外科手术中，需要一个稳定的骨锉过程，以避免热骨坏死和最小化有害振动，这对机器人操作的骨锉系统尤为重要。
方法
对几种骨锉处理参数的影响进行了实验表征。通过骨锉温度、工具振动和骨锉力来评估骨锉参数。
结果
骨锉参数的最佳组合可使骨温度（<40°C）和工具振动（<4 g-rms）均达到最小值。与球形骨锉（33.5 ± 4.3°C）相比，垂直于标本的圆柱形骨锉会导致更高的温度（50.8 ± 6.8°C）（P =.008）。无论测试何种参数，骨锉力都小于 10 N。
结论
根据实验结果，建议采用最小化骨温度和振动的配置，即 15 000 rpm 的 6 毫米球形骨锉，进给速度为 2 毫米/秒。
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