Magnet arrangement for bone conduction hearing implant
AssigneeVibrant Med-El Hearing Technology GmbH
InventorsGeoffrey R. Ball, Markus Nagl
Life of this patent
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Abstract
An implantable magnet arrangement is described for a hearing implant in a recipient patient. A pair of implant magnets are fixable in a common plane beneath the skin of the patient to underlying skull bone. At least one of the magnets is adapted to transform a magnetic drive signal from an external signal drive coil into a corresponding mechanical stimulation signal for delivery by bone conduction of the skull bone as an audio signal to the cochlea. Each implant magnet includes a pair of internal magnets lying in parallel planes which meet along a common junction with repelling like magnetic polarities facing towards each other, and the magnetic polarities of each implant magnet are reversed from each other.
Claims10
An implantable magnet arrangement for a hearing implant in a recipient patient, the arrangement comprising:
- a pair of implant magnets fixable in a common plane beneath the skin of the patient to underlying skull bone, at least one of the magnets being adapted to transform a magnetic drive signal from an external signal drive coil into a corresponding mechanical stimulation signal for delivery by bone conduction of the skull bone as an audio signal to the cochlea;
- wherein each implant magnet comprises a pair of internal magnets lying in parallel planes which meet along a common junction with repelling like magnetic polarities facing towards each other;
- and
- wherein the magnetic polarities of each implant magnet are reversed from each other.
Dependencies are inferred from the claim text.