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US 4,792,759 AGranted
Multi-frequency surface probe
AssigneeElscint Ltd.
InventorsHanan Keren, Itzchak Linnenberg
Life of this patent
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Abstract
A radio frequency RF balanced coil for magnetic resonance operations. The coil is tuned to a plurality of frequencies for use in acquiring data of different elements at various frequencies without having to remove and/or return the coil. The coil has a single terminal pair and is coupled to the MR system with a single shielded cable.
Claims11
A multi-frequency tuned surface probe comprising:
- sampling coil means for transmitting and receiving RF pulses and signals,
- shield cable means for transferring said pulses and said signals to and from said sampling coil means,
- tuning capacitor means in series in said sampling coil means for tuning said probe to a first desired resonant frequency,
- at least one parallel tuned circuit in series in said sampling
- coil for tuning said probe to another desired resonant frequency,
- matching capacitor means coupled between the shielded cable and the shield, and
- said sampling coil means coupled to the shield of the said shielded cable through coupling coil means.
4 more elements
Dependencies are inferred from the claim text.