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US 2025/0050102 A1Published application
Cochlear implants having mri-compatible magnet apparatus and associated systems and methods
AssigneeAdvanced Bionics AG
InventorsJames George Elcoate Smith, Sung Jin Lee
Life of this patent
Estimating the term…
Abstract
A magnet system including a non-magnetic spacer, a hermetically sealed case, and at least one magnet located within the hermetically sealed case as well as associated cochlear implants and associated methods.
Claims19
A cochlear implant, comprising:
- a cochlear lead including a plurality of electrodes;
- a housing including a magnet pocket defining a magnet pocket diameter, a top wall above the magnet pocket, a bottom wall that does not include an opening below the magnet pocket, and a magnet aperture that extends through the top wall to the magnet pocket;
- an antenna within the housing and adjacent to the magnet pocket;
- a stimulation processor within the housing operably connected to the antenna and to the cochlear lead;
- and
- a magnet system, located within the magnet pocket and removable from the pocket by way of the magnet aperture, including
- a non-magnetic spacer including a receptacle and defining an outer diameter that is substantially equal to the magnet pocket diameter,
- a hermetically sealed case located within the receptacle, and
- at least one magnet located within the hermetically sealed case.
6 more elements
A cochlear implant, comprising:
- a cochlear lead including a plurality of electrodes;
- a housing including a magnet pocket defining a magnet pocket diameter, a top wall above the magnet pocket, a bottom wall that does not include an opening below the magnet pocket, and a magnet aperture that extends through the top wall to the magnet pocket;
- an antenna within the housing and adjacent to the magnet pocket;
- a stimulation processor within the housing operably connected to the antenna and to the cochlear lead;
- and
- a magnet system, located within the magnet pocket and removable from the pocket by way of the magnet aperture, including
- a hermetically sealed case defining an outer diameter that is substantially equal to the magnet pocket diameter,
- a non-magnetic spacer located within the hermetically sealed case and including a receptacle, and
- at least one magnet that is located within the receptacle.
6 more elements
10-25. (canceled)
A magnet system, comprising:
- a non-magnetic spacer including a receptacle;
- a hermetically sealed case located within the receptacle;
- and
- at least one magnet located within the hermetically sealed case;
- wherein the non-magnetic spacer is permanently secured to the hermetically sealed case.
2 more elements
(canceled)
A magnet system, comprising:
- a hermetically sealed case;
- a non-magnetic spacer located within the hermetically sealed case and including a receptacle;
- and
- an axially magnetized magnetic disk that is located within the receptacle.
1 more element
(canceled)
Dependencies are inferred from the claim text.