人體通訊(Human Body communication)是WBAN(Wireless Body Area Network)中的一種通訊方式，是以人體為媒介來進行訊號傳輸，與其它IEEE802.15無線標準的相比；該無線通訊技術中，對人體的安全有非常高的要求，並支持可靠的QoS、低功耗、數據速率等。微刺激器(Micro-stimulator) 是新興的治療裝置，在應用上通常是置於體內，來刺激特定的神經做為康復治療之使用，在電源上可分為用電池或用RF電源，使用RF供電有諸多優點：裝置體積小、安全性高等，為未來設計的趨勢。

本論文提出符合人體通訊技術之體內微刺激器，與體外讀取裝置的設計，其中包含溦刺激器的小型化實做、人體通訊的模擬測試與醫療應用的研究。研究成果顯示：溦刺激器的體積縮小至D=7x14mm，為膠囊狀適於植入人體，可於體內1.5cm處提供1mW的電能，來供給感測器、刺激探頭使用。人體通訊是使用電場通訊(Electric Field Communication)中的電耦合(Galvanic Coupling)技術，在通訊時可同時傳遞電力與訊號。微刺激器的硬體是以13.56MHz的感測晶片來進行設計，包含晶片內部溫度感測器以讀取體內溫度，與外部溫度感測器讀取刺激探頭的溫度，在治療同時進行溫度監控。在讀取器天線設計上，以環形天線置入鐵氧體片的方式，達到增加感應距離，改善磁場死角的目的。人體通訊模擬測試顯示，微刺激器的設計不受生理組織差異的影響，有高的訊雜比，可穩定於體內運作。最後在醫療應用上，刺激器的探頭是以光熱刺激的應用進行設計，經測試其功能可實際運用於臨床研究上。

HBC (Human Body Communication), one of WBAN (Wireless Body Area Network), transmits signals by using human body as medium. Comparing to other standards of IEEE820.15, HBC not only requires greater human safety, but also supports reliable QoS, low power consumption, data speed and so on. Micro-stimulator, an emerging therapy device, is usually installed inside human body; to excite the specific nerves for rehabilitation. Power Source could be either battery or RF power sourcing. Many advantages lie on utilizing RF power sourcing: smaller volume, higher safety and so on, those features will lead the trend of future design.

The thesis hereby brings up the followings: the inside body micro-stimulator in compliance with HBC; and the design of outside body reading apparatus. There are more included as below: miniaturizing real model of micro-stimulator, simulate measurement of human channel, and research of medical application. The results of research shows, that the volume of the micro stimulator has been cut down to the size of D=7mmx14mm, and the capsule-like micro stimulator generating electric energy of 1mW for stimulator probe, as well as sensor planted into the 1.5cm deep inside human body. Human communication utilizes the Galvanic Coupling Model of Electric Field Communication, and also adopts the existing 13.56MHz technique as the communication interface. Human communication is able to convey both electric power and signals at the same time. Communication hardware of micro-stimulator, including inside-chip temperature sensor for reading inside body temperature; and external temperature sensor for reading the temperature of stimulator probe, is designed based upon 13.56Mhz sensor chip. In designing the antenna of reader, circular loop antenna inserted into Ferrite sheet amplifies the strength of induction and also improve the integrity of magnetic field. The result of stimulate measurement of human channel, shows that, the design micro-stimulator herein will be less affected by differences of physiological organization; and the high ratio of signal to noise could stably work inside human body. As to the medical application, the probe of micro-stimulator is designed upon the application of optical heating stimulation; and the tests regarding the probe show that, the probe can actually work functionally in clinical experiment.

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