Micro-coil array used for signal transcutaneous transmission of multichannel electrical stimulation
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    Abstract:

    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. 

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牟宗霞,侯文生,郑小林,胡宁,夏楠,吴小鹰,JIANG Ying-tao, Biswajit Das,彭承琳.多道电刺激信号透皮传输的微线圈阵列[J].重庆大学学报,2011,34(8):18~23

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  • Received:March 03,2011
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