The final goal of this study is to develop a total implantable biosignal monitoring device which monitors biosignals inside body for long time. For such device transcutaneous digital communication and energy transmission is indispensable. This paper describes a noncontact transcutaneous digital communication using Bluetooth and long distance energy transmission system using core coil. We have developed an implantable biosignal monitoring device equipped with an acceleration sensor, an ECG

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... ier, a temperature sensor, a flash memory, a Bluetooth module, a transcutaneous energy receiving coil and a lithium ion battery. We performed an implant test using a cow and transcutaneous digital communication at a distance of 2, 700 mm and energy transmission at a distance of 150 mm through the skin were confirmed.