人体动能驱动的可植入式电磁感应供电方法研究  

Implantable Electromagnetic Induction Power Generation Based on Human Kinetic Energy Method

作　　者：韦晓娟[1] 刘静[1,2] 周一欣[1] 

机构地区：[1]中国科学院理化技术研究所,北京100190 [2]清华大学医学院生物医学工程系,北京100084

出　　处：《科技导报》2009年第6期65-71,共7页Science & Technology Review

基　　金：国家自然科学基金项目(50325622);清华-裕元医学科学研究基金课题

摘　　要：当前,随着医学技术的飞速发展,满足各类治疗和诊断需求的可植入人体式医用器件日益增多,如何为其提供长期、稳定和高效的电能是一个关键问题。本研究分析了人体运动动能的量级,提出一种可植入式电磁发电装置,可适时捕捉人体动能并将其转化为电能。通过理论分析、模拟及在体实验,证实了新方案可于人体运动中收集到足够的电能来对植入式医疗器件供电,并就各种影响发电的因素,如发电装置内的动态电磁场强度、运动幅度以及不同植入部位的影响进行了全面评估,在此基础上讨论了发电器件微型化的问题。对于今后研究微型植入式医疗器械的永久性充电问题具有重要参考价值。The rapid advancement of the latest medical technology witnesses an increasing adoption of Implantable Medical Devices （IMDs） for various diagnostic or therapeutical purposes. A critical issue encountered is to find out a long term, stable and efficient way to supply electrical power for these devices. In this paper, the human kinetic energy is evaluated and an implantable electromagnetic power generation device is proposed, using the energy from the movement of human body to generate electricity for powering IMDs. Through model analysis, simulation test, and in vivo experiments, it is demonstrated that the device could produce sufficient electricity from the kinetic energy of human body. Various important factors such as the dynamic electromagnetic intensity inside the electricity generator, the movement scope and the implantation position that affect the output of electricity generation are evaluated. Problems of miniturization of the electrical generator are also discussed. This study aims to provide some guidance for developing future implantable medical micro devices with permanent recharging capability.

关 键 词：可植入式医疗器械 微电源 电磁转化 人体动能捕捉 微/纳米医学 

分 类 号：TH772[机械工程—仪器科学与技术]