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| Hauptseite > Publikationsdatenbank > MR COIL ASSEMBLY WITH MULTIPLE DIPOLE ANTENNAS AND CONNECTION ELEMENTS WITH BLOCKING CIRCUITS |
| Hauptseite > Publikationsdatenbank > MR COIL ASSEMBLY WITH MULTIPLE DIPOLE ANTENNAS AND CONNECTION ELEMENTS WITH BLOCKING CIRCUITS |
| Patent | FZJ-2026-01107 |
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2025
Patent No.: EP3931585B1; EP3931585A1
Abstract: MR COIL ASSEMBLY WITH MULTIPLE DIPOLE ANTENNAS AND CONNECTION ELEMENTS WITH BLOCKING CIRCUITSAbstractAbstract not available for EP3931585B1 – abstract of corresponding document: WO2020173590A1The invention relates to a coil assembly (1) for use as a transmission and/or receiving coil in an MR system which comprises a dipole antenna assembly (2) with multiple dipole antennas 2a-d which are connected together via connection elements 3a-h. The connection elements 3a-h are designed to be converted from an electrically conductive state to an electrically non-conductive state and vice versa, and the assembly is designed such that in the electrically conductive state of the connection elements 3a-h, the dipole antennas 2a-d form at least one part of a preferably cylindrical volume coil and/or a conductor loop assembly of the coil assembly (1), in particular a flat conductor loop assembly, with at least one conductor loop 20a-c, wherein the connection elements 3a-h comprise connection element blocking circuits 4a-h which automatically block when a high-frequency alternating voltage with a frequency corresponding to the blocking frequency of the connection element blocking circuits 4a-h is applied to the coil assembly (1). The invention additionally relates to an MR system comprising such a coil assembly (1) and to the use of such a coil assembly (1).
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