[The Esteem hearing implant by Envoy Medical]

The Esteem hearing implant by Envoy Medical is a fully implantable system that uses piezoelectric transducers. This device uses the eardrum as the microphone. The mechanical signal is detected by a piezoelectric transducer at the head of the incus (the sensor) and converted to an electrical signal that is amplified, filtered, and converted back to a vibratory signal. The processed vibratory signal is then delivered by another piezoelectric transducer (the driver) to the stapes capitulum.