Magnetic neurostimulation with reduced acoustic emission
US10471272B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 20, 2015 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Sep 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/323
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device and a method for the stimulation of neurons and muscle cells according to the principle of magnetic stimulation, wherein the invention generates substantially less acoustic sound emission for the same activation strength compared to the state of the art. This invention reduces the acoustic sound emission, usually a clicking sound, which is a safety risk in magnetic stimulation and causes undesired uncontrollable sensory-auditory brain stimulation, by increasing the frequency of a substantial portion of the spectrum of the pulse, preferably to or above the human hearing range.Furthermore, the invention relates to a quiet coil technology that reduces the conversion of electrical energy into mechanic-acoustic oscillations, whereby the transmission of the mechanic-acoustic oscillations to the surface is suppressed by elastic decoupling and the mechanic-acoustic energy is converted into heat by viscoelastic material deformation instead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.