A hearing aid (100) is provided for surgically implanting in the ear of a subject. A liquid filled tube (142) is positioned between an orifice of the cochlea and a subcutaneous amplifier (200). A microphone (122) converts sound waves outside the subject into electrical signals which are amplified by...http://www.google.com.au/patents/US5176620?utm_source=gb-gplus-sharePatent US5176620 - Hearing aid having a liquid transmission means communicative with the cochlea and method of use thereof
