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US 2023/0156416 A1Published application
Bone conduction magnetic retention system
AssigneeCochlear Limited
InventorJohan GUSTAFSSON
Life of this patent
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Abstract
An external component of a medical device, including an actuator including a static magnetic flux path that reacts with a dynamic magnetic flux path to actuate the actuator, and a magnetic retention system configured to retain the external component to a recipient via interaction with a ferromagnetic component attached to a recipient, the magnetic retention system including a magnetic flux path that encircles the static magnetic flux path of the actuator.
Claims30
A hearing prosthesis, comprising:
- a component, including:
- a plurality of magnets, wherein
- the plurality of magnets collectively form a circular shape and are configured to establish magnetic attraction between an external component and an implantable component of the hearing prosthesis sufficient to hold the external component against the skin of the recipient, wherein the component is one of the external component or the implantable component,
- the plurality of magnets includes at least a first magnet and second magnet,
- the first magnet has a North-South pole axis, and
- the second magnet has a North-South pole axis extending in a different direction from the North-South pole axis of the first magnet.
3 more elements
A hearing prosthesis, comprising:
- an implantable component, including:
- a first magnet having a North-South alignment in a first direction;
- and
- a second magnet having a North-South alignment in a second direction different from the first direction, wherein
- the first direction is fixed relative to the second direction, and
- the implantable component is configured to retain an external component of the hearing prosthesis on a recipient of the hearing prosthesis via magnetic coupling between the first and second magnet of the implantable component and one or more permanent magnets of the external component.
3 more elements
Dependencies are inferred from the claim text.