摘要
提出一种人体植入式医学装置电能传输新方法,该方法以人体组织作为耦合介质,通过体内、外耦合极板构建耦合电容,以耦合电场实现电能的无线传输。分析了人体组织的电学特性,设计了电能传输系统,并通过实验验证了该方法的可行性。实验中,通过36 cm2的耦合面积,穿越2 cm厚度的生物组织,可传输100 m W的可用电能,传输效率为35%~40%。该电能传输方式具有无电涡流致热、电磁干扰小、易于与医学仪器集成的优点,是人体植入式医学装置无线电能供给的新思路。
A novel wireless power transfer method for the biomedical devices implanted in human body is proposed in this paper. This power transfer method uses human tissue as the coupling medium; with the coupling plates arranged inside and out of the human body, a coupling ca- pacitor is constructed; then, the power can be transferred wireless]y through electronic-field coupling. The electrical characteristic of the hu- man tissue is analyzed, the circuit structure of the power transmission system is designed. Experiments are carried out to verify the feasibility of the power transmission method. Experiment results show that the system can transfer the usable power of 100mW over the biological tissue of 2cm thick through the coupling area of 36cm2, and the transfer efficiency is about 35% -40%. The proposed electronic-field coupling power transfer method has the advantages of no eddy current heating, small electromagnetic interference and easy to be integrated with medical instru- ments, which is a new conception for the wireless power supply of implantable biomedical devices.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2015年第8期1816-1821,共6页
Chinese Journal of Scientific Instrument
基金
陕西省科技计划(2015JM5186)
高等学校博士学科点专项科研基金(20116118120007)项目资助
关键词
无线电能传输
电场耦合
人体组织
介电特性
wireless power transfer
electrical-field coupling
human tissue
dielectric property
