Back to results
US 11,082,783 B2Granted
Bone conduction magnetic retention system
AssigneeCochlear Limited
InventorJohan Gustafsson
Life of this patent
Estimating the term…
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.
Claims19
An external component of a medical device, comprising:
- a transducer including a static magnetic flux circuit that interacts with a dynamic magnetic flux circuit;
- and
- a magnetic retention system configured to retain the external component to a recipient via interaction with a ferromagnetic component attached to the recipient, wherein
- the external component includes a skin interface surface, wherein at least one of:
- a distance between the skin interface surface to a center of mass and/or center of gravity of the external component is not more than about 10 mm;
- or
- a height as measured from the skin interface surface to a surface facing opposite the skin interface surface at a top of the external component is no more than about 15 mm.
4 more elements
An external component of a medical device, comprising:
- a functional component configured to output energy;
- and
- a magnetic retention system configured to removably retain the external component to a recipient via interaction with a ferromagnetic component implanted in the recipient, wherein
- the external component is configured such that the outputted energy is transcutaneously conducted into the recipient so as to evoke a hearing percept based on that the outputted energy, and
- the magnetic retention system including a magnetic flux circuit that at least one of:
- encircles the functional component;
- has substantial components located outside the functional component on substantially opposite sides of the functional component;
- or
- is at least partially generated by magnets that overlap with the functional component with respect to location along a direction normal to a skin interfacing surface of the external component.
6 more elements
A hearing prosthesis system, comprising:
- an external component including at least one first magnet configured to generate a first magnetic field;
- and
- an implantable component including at least one second magnet configured to generate a second magnetic field, wherein
- the implantable component includes a yoke that channels the second magnetic field.
1 more element
Dependencies are inferred from the claim text.