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http://dx.doi.org/10.9717/kmms.2015.18.5.652

Implementation of Implantable Bluetooth Bio-telemetry System for Transmitting Acoustic Signals in the Body with Wireless Recharging Function  

Lee, Sang-June (Dept. of Medical & Biological Eng., Graduate School, Kyungpook National University)
Kim, Myoung Nam (Dept. of Biomedical Eng., School of Medicine, Kyungpook National University)
Lee, Jyung Hyun (Dept. of Biomedical Eng., Kyungpook National University Hospital)
Lim, Hyung-Gyu (Graduate School of Electronics Eng., Kyungpook National University)
Cho, Jin-Ho (School of Electronics Eng., College of IT Eng., Kyungpook National University)
Publication Information
Journal of Korea Multimedia Society / v.18, no.5, 2015 , pp. 652-662 More about this Journal
Abstract
It is necessary to develop small, implantable bio-telemetry systems which can measure and transmit patients' bio-signals from internal body to external receiver. When measuring bio-signals, like electrical bio-signals, acoustic bio-signal measurement has also a big clinical usefulness. But, sound signal has larger frequency bandwidth than any other bio-signals. When considering these issues, a wireless telemetry system which has rapid data transmission rate proportional to wide frequency bandwidth is necessary to be developed. The bluetooth module is used to overcome the data rate limitation caused by the large frequency bandwidth. In this paper, a novel multimedia bluetooth biotelemetry system was developed which consists of transmitter module located in the body and receiver device located outside of the body. The transmitter consists of microphone, bluetooth, and wireless charging device. And the receiver consists of bluetooth and codec system. The sound inside the skin is captured by microphone and sent to receiver by bluetooth while charging. The wireless charging system constantly supplies the electric power to the system. To verify the performance of the developed system, an in vitro experiment has been performed. The results show that the proposed biotelemetry system has ability to acquire the sound signals under the skin.
Keywords
Implantable Bio-telemetry System; Bluetooth Module; Implantable Microphone;
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