Radio frequency coil for open magnetic resonance imaging system
US6437567B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1999 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Dec 6, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A quadrature coil suitable for use with an open frame MRI system provides crossing pairs of arrays of parallel conductor elements, respectively. Compact configuration is provided through use of an isolating circuit for incorporating parasitic capacitances at the resonance frequency of the coil into a blocking parallel resonance. Termination of the parallel conductor elements may be accomplished by equal impedance node connectors formed from branching pairs of conductors or a triangular least resistance connection form. RF shields are provided by pairs of conductive sheets containing eddy current reducing slots aligned with the parallel conductors elements of the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.