MRI-safe implant magnet with angular magnetization
US9872993B2 · kind B2 · utility
10Cited by
13References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2013 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Sep 21, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3718
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A magnetic arrangement is described for an implantable system for a recipient patient. An implantable coil housing contains a signal coil for transcutaneous communication of an implant communication signal. Freely rotatable within the coil housing is a cylindrical implant magnet for transcutaneous magnetic interaction with a corresponding external attachment magnet. The implant magnet has a central cylinder axis of symmetry, and a magnetization direction along a magnetic axis angled away from the axis of symmetry at a non-zero angle less than 45 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.