HF coil assembly
AssigneeBruker Switzerland AG
InventorsAlia Hassan, Nicolas Freytag
Life of this patent
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Abstract
An HF coil assembly for generating independent alternating magnetic fields in an examination volume of a magnetic resonance apparatus is presented, the HF coil assembly comprising a first coil pair of saddle coils and a second coil pair of saddle coils, each saddle coil having longitudinal conductor elements and curved conductor elements arranged along a common lateral surface of a circular cylinder having a cylinder axis. Each coil pair comprises curved conductor elements and longitudinal conductor elements which are interconnected at a high frequency. The saddle coils also have diagonal conductor elements and/or bridge elements that connect the longitudinal and curved conductor elements. The coil pairs are opposite to each other relative to the cylinder axis.
Claims34
A high frequency (HF) coil assembly for generating at least two independent alternating magnetic fields in an examination volume of a magnetic resonance apparatus, comprising:
- a first coil pair of saddle coils having first longitudinal conductor elements and first curved conductor elements, which are arranged along a common geometric lateral surface of a circular cylinder having a cylinder axis, and
- a second coil pair of saddle coils having second longitudinal conductor elements and second curved conductor elements, which are arranged along the lateral surface,
- wherein a first group of the first curved conductor elements and the first longitudinal conductor elements are interconnected at a high frequency to form the first coil pair of saddle coils, with the saddle coils positioned opposite each other relative to the cylinder axis,
- wherein a second group of the second curved conductor elements and the second longitudinal conductor elements are interconnected at a high frequency to form the second coil pair of saddle coils, with the saddle coils positioned opposite each other relative to the cylinder axis,
- wherein the axial position and extent relative to the cylinder axis of the first coil pair and the second coil pair are equal,
- wherein the first coil pair and the second coil pair overlap in an azimuthal direction, and
- wherein bridge elements are arranged in the saddle coils such that each of the bridge elements of the first coil pair crosses over a second conductor element of the second coil pair and/or each of the bridge elements of the second coil pair crosses over a first conductor element of the first coil pair.
Dependencies are inferred from the claim text.