使用磁位和定向传感系统测量部整体置换中的相对组件运动和稳定性
Oliver G Vickers1, Peter R Culmer1, Graham H Isaac1
1The Faculty of Engineering and Physical Sciences, University of Leeds, Leeds LS2 9JT, UK.
Sensors (Basel, Switzerland)
|December 11, 2025
概括
这项研究开发了一种用于仪器全关节置换 (THR) 植入物的磁感应系统. 该系统准确地跟踪组件运动,有助于监测患者的康复和早期发现不良事件.
科学领域:
- 生物医学工程 生物医学工程
- 整形外科手术 整形外科手术
- 医疗器械技术 医疗器械技术
背景情况:
- 持续监测全关节置换 (THR) 植入物是可取的,以跟踪患者的康复和检测不良事件.
- 测量THR组件的相对运动,可以了解关节动力学,冲击和脱.
研究的目的:
- 开发一种用于测量THR假肢组件相对方向和转移的传感系统.
- 将磁传感技术集成到临床上可用的THR组件中,用于远程监控.
主要方法:
- 一个三轴磁力计和永久磁铁被纳入THR元件中,以创建一个磁位和方向传感系统.
- 一个机器人手臂模拟了组件关节,数据与摄像头追踪系统进行了验证.
主要成果:
- 磁传感系统准确地测量了相对组件的方向 (RMSE<4.0°在两个自由度).
- 在撞击驱动的亚位突变过程中,大腿骨头的移位被高精度测量 (RMSE为0.2毫米).
结论:
- 磁传感技术是跟踪THR组件的位置和方向的可行方法.
- 这个概念验证证明了未来仪器THR植入物具有集成传感能力的潜力.
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