增强机器人脊柱分心磁性执行系统的扭矩输出
Yumei Li1,2, Zikang Li1,2,3, Ding Lu1,2
1Beijing Key Laboratory of High Dynamic Navigation Technology, Beijing Information Science Technology University, Beijing 100096, China.
Sensors (Basel, Switzerland)
|October 29, 2025
概括
优化磁控生长棒用于早期发病的脊椎结节症 (EOS) 显著增加了分心力. 这一进步通过提高扭矩和定义操作界限来提高植入物安全性和有效性,以便更好地进行体内监测.
科学领域:
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
- 整形外科手术 整形外科手术
背景情况:
- 磁控生长棒被用于早期发病的脊柱结 (EOS) 治疗.
- 目前的局限性包括缺乏足够的分心力和无法在体内监测植入物输出.
- 优化转子扭矩和定义连续旋转域对于安全性和有效性至关重要.
研究的目的:
- 为了优化磁控生长棒的最大扭矩和连续旋转域.
- 为了增强这些植入物的分心力和体内监测能力.
- 为了解决当前EOS处理设备的临床局限性.
主要方法:
- 使用ANSYS Maxwell建立了一个短暂的有限元磁场模拟模型.
- 分析了角,极对,转子直径和旋转速度对转子扭矩的影响.
- 通过实验扭矩测量和在脊柱生长杆平台上测试分心力,验证了模拟结果.
主要成果:
- 在模拟中,优化的参数 (120°片角度,1个杆对,8毫米旋转器直径) 在模拟中增加了201%的最大扭矩.
- 实验验证显示最大扭矩 (30N·mm到90N·mm) 增加了三倍.
- 优化的生长棒达到413N的峰值分心力,几乎是商业MAGEC系统 (208N) 的两倍.
结论:
- 这项研究成功地优化了磁控生长棒的性能,显著提高了分心力.
- 已建立的模拟和实验方法为体内性能预测和监测提供了一条途径.
- 这一进步解决了对EOS治疗中更安全,更有效的智能植入式技术的关键需求.
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