ARTIFICIAL AURIS INTERNA

摘要

A fishbone sensor (21) includes a plurality of resonators resonating with a sound of different frequencies and converts oscillation of each resonator to a signal corresponding to the oscillation level. An amplification circuit (22) amplifies the signal converted by the fishbone sensor (21) with a predetermined amplification ratio and supplies it to an external switch circuit (23). The external switch circuit (23) switches the signal supply route and successively transmits the supplied signals via an external antenna (24). An internal switch circuit (32) switches the signal supply route and successively supplies the signal transmitted via the internal antenna (31) to a plurality of electrodes (4a) to give a stimulus to the nerve in the cochlear duct.