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US 2024/0173547 A1Published application
Magnet management mri compatibility
AssigneeCochlear Limited
InventorsCharles Roger Aaron LEIGH, Grahame Michael David WALLING, Mark Alan VON HUBEN, James VANDYKE, Nam Long TUONG
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Abstract
An implantable medical device, including a magnet and a body encompassing the magnet, wherein the implantable medical device includes structural components in the body configured to move away from one another upon initial rotation of the magnet relative to the body when the magnet is subjected to an externally generated magnetic field, thereby limiting rotation of the magnet beyond the initial rotation.
Claims20
A hearing prosthesis, comprising:
- an external device including a magnet;
- and
- an implantable device including a disk magnet, wherein
- the implantable device is configured such that the disk magnet revolves about a longitudinal axis of the disk magnet and such that the disk magnet rotates about an axis that is normal to the longitudinal axis, and
- the hearing prothesis is configured to utilize the magnet of the external device and the disk magnet to retain the external device to a recipient of the hearing prosthesis.
2 more elements
A hearing prosthesis, comprising:
- an external device including a first magnet;
- and
- an implantable device including a second magnet with a flat surface configured to face the first magnet, wherein
- the implantable device is configured such that the second magnet revolves about a longitudinal axis of the second magnet and such that the second magnet rotates about an axis that is normal to the longitudinal axis, and
- the hearing prothesis is configured to utilize the first magnet and the second magnet to retain the external device to a recipient of the hearing prosthesis.
2 more elements
Dependencies are inferred from the claim text.