用于小型化植入式医疗设备的基于纺织品的全双工无线电力传输系统。
Full-duplex enabled wireless power transfer system via textile for miniaturized IMD.
作者信息
Lee Jaeho, Bae Beomjun, Kim Beomjin, Lee Byunghun
机构信息
Department of Electronic Engineering, Hanyang University, Seoul, 04763 South Korea.
Department of Biomedical Engineering, Hanyang University, Seoul, 04763 South Korea.
出版信息
Biomed Eng Lett. 2022 Jul 17;12(3):295-302. doi: 10.1007/s13534-022-00237-9. eCollection 2022 Aug.
Full-duplex (FD) enabled wireless power transfer (WPT) system via textile for miniaturized IMD is presented. By utilizing the battery-free near-field communication (NFC) method, the system realizes wireless power and data transmission without a bulky battery or energy harvester which can diminish the physical size of implantable medical device (IMD). Moreover, using textile as a medium of power transmission, the system overcomes the drawback and extends the limited effective range of the NFC method. In addition, as realizing simultaneous bidirectional data transmission over a single data channel, IMD has been further miniaturized. The proposed system including an external transmitter and the minimized IMD receiver supports 200 kbps and 50 kbps data rates for FSK downlink and LSK uplink telemetries at the same time with bit error rate (BER) of < and < , respectively. The measured power transfer efficiency (PTE) and DC-to-DC power delivered to load (PDL) are 5.77% and 64 mW at 0.5/60 cm of vertical/horizontal distance.
本文提出了一种通过纺织品实现全双工（FD）的无线电能传输（WPT）系统，用于小型化植入式医疗设备（IMD）。通过采用无电池近场通信（NFC）方法，该系统实现了无线电力和数据传输，无需使用可能会减小植入式医疗设备（IMD）物理尺寸的笨重电池或能量收集器。此外，该系统使用纺织品作为电力传输介质，克服了NFC方法的缺点并扩展了其有限的有效范围。此外，由于在单个数据通道上实现了同时双向数据传输，IMD得到了进一步的小型化。所提出的系统包括一个外部发射器和最小化的IMD接收器，同时支持FSK下行链路和LSK上行链路遥测的200 kbps和50 kbps数据速率，误码率（BER）分别小于 和 。在垂直/水平距离为0.5/60 cm时，测得的功率传输效率（PTE）和输送到负载的直流到直流功率（PDL）分别为5.77%和64 mW。
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