Retention magnet system for medical device
US10917730B2 · kind B2 · utility
8Cited by
152References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2019 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Apr 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An external portion of an auditory prosthesis includes an external magnet that interacts with an implantable magnet to hold the external portion against the skin. Magnetic force generated by the stray field of these magnets can disturb the operation of a vibrating element of the auditory prosthesis. The technologies described herein utilize additional magnets disposed within portions of the auditory prosthesis to redirect the magnetic flux, which allows the vibrating element to be disposed more closely to the magnets, reducing the overall height profile of the prosthesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.