一种基于MEMS微线圈微线圈无线微能传输的新方法
Yongdong Wang1, Cheng Yi1, Fanxiang Meng1
1School of Mechanical Engineering, Shanghai University, Shanghai 200444, China.
Micromachines
|November 25, 2023
概括
本研究介绍了使用MEMS微线圈供电植入式设备的无线微能量传输,克服了电池的局限性,以获得更好的医疗应用.
科学领域:
- 生物医学工程 生物医学工程
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
背景情况:
- 目前的植入式设备面临由于刚性,重的电池的限制,导致免疫排斥并阻碍小型化.
- 有限的电池寿命限制了长期使用和从目标组织中可靠的生物信号采集.
- 无线电力传输对于推进小型化和最少侵入性的植入式医疗系统至关重要.
研究的目的:
- 建议和评估使用MEMS微线圈充电植入式设备的无线微型能量传输方法.
- 为了研究线圈对齐和距离对输电效率的影响.
- 为了证明植入式设备无线供电的可行性.
主要方法:
- 模拟了同轴距离,水平位移和旋转角度对MEMS和传输线圈之间的功率传输的影响.
- 使用微纳米制造 (50微米线宽,厚度,间距,5转) 制造了一个MEMS微螺旋铜线圈.
- 进行无线电力传输测试以测量系统输出.
主要成果:
- 在10毫米距离和100kHz工作频率下,实现了45μW的功率传输.
- 证明产生的功率水平足以用于植入心脏起器.
- 确定了有效的无线电力传输的最佳参数.
结论:
- 拟议的MEMS微线圈技术为可植入医疗设备的无线电源提供了可行的解决方案.
- 这项技术可以克服传统电池的局限性,实现更小,更高效的设备.
- 潜在的应用包括用于心脏起器和大脑神经刺激器的无线电源.
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