Magnetic resonance imaging apparatus and RF coil device

  • US 10,175,313 B2
  • Filed: 04/07/2014
  • Issued: 01/08/2019
  • Est. Priority Date: 01/23/2013
  • Status: Active Grant
First Claim
Patent Images

1. A magnetic resonance imaging (MRI) apparatus configured to receive a nuclear magnetic resonance (NMR) signal from an RF coil that detects an NMR signal emitted from an object, the magnetic resonance imaging apparatus comprising:

  • a double resonance whole body (WB) coil configured as a birdcage coil and to wirelessly transmit an alternating current power to an magnetic resonance imaging (MRI) RF coil that detects a nuclear magnetic resonance (NMR) signal emitted from an object, the double resonance WB coil comprising;

    a circular loop conductor; and

    a linear connecting conductor,wherein the double resonance WB coil is configured to resonate at an NMR frequency and at a lower alternating current power supply frequency, wirelessly transmit electric power to a power receiving circuit of the RF coil at the power supply frequency, and to also induce the object to emit NMR signals by transmitting RF NMR excitation signals into said object, andan RF NMR signal having the NMR frequency is connected to one of the circular loop conductor and the linear connecting conductor, and an alternating current power signal having said power supply frequency is connected to the other of the circular loop conductor and the linear connecting conductor.

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