An implantable hearing aid system for the middle ear utilizes pairs of permanent magnets to engage transducers with auditory elements in a middle ear. At least one transducer is supported within the middle ear cavity by a support. A transducer is magnetically-engaged with a malleus in one embodiment...http://www.google.es/patents/US5842967?utm_source=gb-gplus-sharePatente US5842967 - Contactless transducer stimulation and sensing of ossicular chain
Contactless transducer stimulation and sensing of ossicular chain
