Implantable sensor-actuator transducer device for hearing rehabilitation in middle ear for treatment of hearing loss, has decoupling unit decoupling reactions of actuator on sensor and generating effect opposite to effect of actuator

摘要

The device (5) has a sensor i.e. airborne sound microphone, with a portion that is connected with a portion of an actuator i.e. piezoelectric transducer. The sensor is electrically connected with an electronic processing unit (10) for amplifying an electrical signal, where the processing unit is connected with the actuator for controlling the actuator. A decoupling unit decouples mechanical reactions of the actuator on the sensor, and generates an effect opposite to the effect of the actuator on the sensor, such that the effect of the actuator on the sensor is suppressed. The piezoelectric transducer is made from ceramics, crystal, foils or foams.