The in vivo embedded electronic device (10a) comprises a housing (11), a power receiving Coyle (15), and an electronic circuit.The housing (11) is formed of a biocompatible material to form a sealed internal space.The receiving power Coyle (15) is disposed in the internal space of the housing (11), interacts with the electromagnetic field consisting of an external electric field or magnetic field, performs power reception, or transmits electromagnetic waves to the outside.The electronic circuit is disposed in an internal space and is connected to a receiving power supply (15) to perform at least an electrical signal processing.The housing (11) is made of a metal based biocompatible material and comprises a box shaped first member (111) having an opening, a non-metallic biocompatible material, and a second member (112) having a shape that closes an opening An annular packing (115) disposed between the first member (111) and the second member (112) is provided.
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