Oticon Medical A/s

Erik Holgersson

Tomas Johansson

Johannes Kocher

According to an aspect of the present disclosure, a hearing aid is disclosed. The hearing aid including a vibrator configured to apply a main vibration stimulation onto a skull of a recipient of the hearing aid. The vibrator may include a first assembly which comprises a magnet configured to provide a static magnetic flux and a coil configured to provide a dynamic magnetic flux based on a first current, and the coil may be wrapped around at least a part of the magnet. Furthermore, the vibrator includes a second assembly which includes a vibrator transfer unit and a suspension spring, and wherein the first assembly may be configured to move relative to the second assembly generating a first vibration based on the static and the dynamic magnetic flux, and the first vibration may be transferred to the vibrator transfer unit. Additionally, the vibrator includes a first piezo assembly configured to move based on a second current generating a second vibration, and wherein the first piezo assembly may be connected to the vibrator transfer unit, and when the first piezo assembly moves, a second vibration may be generated, and the second vibration may be transferred to the vibrator transfer unit. The main vibration which is transferred to a skull of the recipient via the vibrator transfer unit may include the first vibration and/or the second vibration.

Hearing aid including a piezo assembly and an electromagnetic assembly

A transcutaneous bone-anchored hearing aid device for a recipient patient is described. The transcutaneous bone-anchored hearing aid device for a recipient patient comprising; a receiver coil for transcutaneous receiving of an externally generated communication signal; a signal processor configured for converting the externally generated communication signal into an electrical stimulation signal; an electromagnetic vibrator configured for receiving the electrical stimulation signal, and wherein the electromagnetic vibrator including; a coil unit configured to generate a dynamic magnetic flux based on the electrical stimulation signal; a permanent magnet configured to generate a static magnetic flux; a mass unit connected to the permanent magnet; a bobbin unit configured to engage with the coil unit, the permanent magnet, and the mass unit; a spring unit configured for maintaining an air gap below a moving mass, wherein the moving mass includes the coil unit, the permanent magnet, the mass unit and the bobbin unit, and where the moving mass and the spring unit is configured to generate an acoustical vibration; a vibrator plate configured to receive the acoustical vibration, and where the air gap is between the vibrator plate and a part of the moving mass, and wherein the mass unit has at least one insert configured to receive at least one of a group that includes at least a part of the permanent magnet, the coil unit, the vibrator plate and/or the spring unit.

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Askim, Sweden

Erik Holgersson