Patente

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). [...]

AbstractAbstract not available for EP4118444B1 – abstract of corresponding document: WO2021180259A1The invention relates to a double-resonant coil (1) consisting of a closed conductor loop which has an interruption at two positions, each interruption being bridged by a connection element which can be converted from an electrically conductive state to an electrically insulating state. The first interruption has a connection element, to which an inductor (3, 8) or a capacitor (4, 9) is connected in series, thereby allowing the excitation of the conductor loop in a dipole mode at one frequency and with a homogeneous power distribution at a second frequency. [...]

The invention relates to a method and a system for diagnosing an electrochemical transducer, as well as a computer program product. A method (1) for diagnosing an electrochemical transducer comprises exciting (4) the electrochemical transducer with excitation signals and detecting (5) response signals from the electrochemical transducer in response to the excitation signals. [...]