摘要 |
The invention relates to a transducer for partially or fully implantable hearing aids for direct mechanical excitation of the middle or inner ear. The transducer is provided with a housing fixedly mounted at the implantation site and a coupling element moveable with respect to the housing for transmitting vibration to the middle ear ossicle or directly to the inner ear. The housing accommodates a piezoelectric element with which the coupling element can be vibrated and an electromagnet arrangement including an electromagnetic component, such as an electormagnetic coil, fixedly mounted relative to the housing and a vibratory component, such as a permanent magnet, mechanically connected to the coupling element such that the vibration of the vibratory component is transferred to the coupling element.
|