The MAESTRO Cochlear Implant System

The MAESTRO Cochlear Implant System is a medical device for individuals with severe to profound sensorineural hearing loss. For individuals with this type of hearing loss, hearing aids provide little or no benefit. The MAESTRO Cochlear Implant System can be used effectively by both prelingually and postlingually deafened children and adults.

MAESTRO directly stimulates the nerve fibres of the cochlea with electrical signals. These signals are transmitted via the hearing nerve to the brain where they are interpreted as sound. MAESTRO consists of both an internal and an external component.


The implant, either the CONCERTO, SONATA or PULSAR, is surgically placed under the skin just behind the ear.

It consists of a durable housing, which contains electronics, as well as a receiving antenna and a magnet.

An electrode array is gently inserted into the cochlea.



Audio processor
The audio processor is worn on the ear.

It consists of a control unit, a battery pack, and a coil that transmits information through

the skin to the receiver in the implant.

MED‑EL offers either the switch-free OPUS 2XS  featuring the FineTuner™, or the OPUS 1 alternative with conventional on-the-processor switches.

Author Info

Euthymiades Audiology Centre