Magnetic field applicator for heating magnetic substances in biological tissue
US6575893B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2001 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Jun 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/95
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A magnetic field applicator to heat magnetic substances in biological tissue, having a magnetic yoke with two pole shoes across from each other and separated from each other by a distance that defines the magnetic field exposure volume produced by the applicator, and with two magnetic coils, one assigned to each of the two pole shoes, to produce a magnetic field. The magnetic yoke and the pole shoes consist of ferrite segments assembled together. Additionally, the magnetic field applicator is composed of a magnetic yoke having two parallel vertical yoke elements of identical geometry spaced apart a distance from each other, and two transverse yoke elements disposed between said vertical yoke elements. The pole shoes, surrounded by disk-shaped magnetic coils, are attached to the center of said transverse yoke elements and oppose each other over a prescribed distance. One transverse yoke element with surrounding magnetic coil is designed to be an adjustable component relative to the other transverse yoke element in order to adjust the width of the space separating the pole shoes, which defines the magnetic field exposure volume. In this manner an effective and efficient magnetic fiel…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.