Adjustable spring assembly for a vibrator of a bone anchored hearing aid
AssigneeOticon Medical A/S
InventorLars Jinton
Life of this patent
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Abstract
Spring assembly as part of a vibrator for a bone anchored hearing aid, wherein the spring assembly comprises a suspension spring having a first end immovably connected to a mass of the vibrator and a second end immovably connected to a coupling attachable to a user's skull bone and comprised by the vibrator, wherein the spring assembly comprises an adjusting means adapted to adjust a spring rate of the suspension spring between a first spring rate and a second spring rate, the first rate being higher than the second rate, so as to move a resonance peak of the vibrator.
Claims14
A spring assembly for a vibrator of a bone anchored hearing aid, the spring assembly comprising:
- a suspension spring having a first end immovably connectable to a mass of the vibrator and a second end immovably connectable to a coupling attachable to a user's skull bone and comprised by the vibrator;
- and
- an adjuster configured to adjust a spring rate of the suspension spring between a first spring rate and a second spring rate, the first rate being higher than the second rate, so as to move a resonance peak of the vibrator, wherein the suspension spring is designed as a planar spring with the first end being located in a peripheral region, the second end in a center region of a plane of the spring, and an axis of displacement is defined perpendicular to the plane and extending through the center region.
Dependencies are inferred from the claim text.