摘要
微线圈阵列和匹配电容谐振可以实现植入电刺激器多路信息的并行传输。为提高微线圈阵列接收各通道信息的精确性与可靠性,并减小植入系统的体积,实验中利用印刷电路板(printedcircuit board,PCB)和柔性电路板(flexible printed circuit,FPC),工艺加工微线圈阵列,将其用于2*2阵列的多通道传输装置,并测试2种工艺线圈在理想耦合、空间失配以及不同负载下的耦合效率情况。结果表明空间失配对两种线圈都有影响,但若控制横向失配在3 mm内、角度失配在30度内,并增大负载,目前实验室阶段2种线圈均可实现植入电刺激器信号的透皮传输,各通道输出信号能满足神经电刺激的要求。在系统可靠性方面,FPC线圈更具有优势,且其柔性的特点更适于植入人体。
Micro-coil array and matching capacitors together can realize the parallel transmission of multichannel signal.In order to improve the accuracy and reliability of receiving information from each channel and to reduce the size of implant systems,two kinds of micro-coil arrays fabricated by using PCB（printed circuit board） and FPC（flexible printed circuit） technology respectively are presented.Then the two micro-coil arrays are used in multi-channel transmission device with a 2 ＊ 2 array.The coupling efficiency of two kinds of process coils under ideal coupling,spatial mismatch as well as different load conditions are tested.The results show that two kinds of coils are affected by spatial mismatch.However,if the transverse mismatch is restricted less than 3 mm and the angular mismatch is less than 30°,the two kinds of coils can be used for signal transcutaneous transmission for implantable electrical stimulation devices at the laboratory stage,and the channel output signal can meet the requirements of electrical nerve stimulation.As for the reliability of the system,FPC coil shows more advantages,and it is more adapted to implantable system.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第8期18-23,共6页
Journal of Chongqing University
基金
国家“863”计划资助项目(2007AA04Z324)
国家自然科学基金资助项目(31070882)
重庆市重点科技攻关项目(2010AB5087)
重庆大学研究生创新团队建设项目(200909A1002)
关键词
微线圈阵列
多通道
PCB线圈
FPC线圈
透皮
电磁耦合
micro-coil array
multichannel
PCB coil
FPC coil
transcutaneous
electromagnetic coupling
