US 11,752,338 B2
Cochlear implants having impact resistant MRI-compatible magnet apparatus
James George Elcoate Smith, Santa Clarita, CA (US); and Sung Jin Lee, Valencia, CA (US)
Assigned to Advanced Bionics AG, Staefa (CH)
Filed on May 22, 2022, as Appl. No. 17/750,352.
Application 17/750,352 is a continuation of application No. 16/603,868, granted, now 11,364,384, previously published as PCT/US2017/029464, filed on Apr. 25, 2017.
Prior Publication US 2022/0280793 A1, Sep. 8, 2022
Int. Cl. A61N 1/36 (2006.01); A61N 1/08 (2006.01); A61B 5/00 (2006.01); A61N 1/372 (2006.01); A61N 1/375 (2006.01)
CPC A61N 1/36038 (2017.08) [A61B 5/0031 (2013.01); A61N 1/086 (2017.08); A61N 1/375 (2013.01); A61N 1/37229 (2013.01)] 15 Claims
OG exemplary drawing
1. A cochlear implant, comprising:
a cochlear lead including a plurality of electrodes;
an antenna;
a stimulation processor operably connected to the antenna and to the cochlear lead; and
a magnet apparatus associated with the antenna and including a case that defines an inner perimeter and a magnet assembly that is located within the case and is rotatable relative to the case, the magnet assembly including:
a spine having a web and a pair of flanges with respective curved outer surfaces that are coextensive with portions of the inner perimeter of the case and are sized such that there are spine-free gaps along the inner perimeter of the case between flanges, and
first and second magnets on opposite sides of the web.