Resonator with adjustable capacitor for medical device

Details Resonator with adjustable capacitor for medical device Resonator with adjustable capacitor for medical device

2007-12-04

2007-12-04

Van, Quang (Department: 3742)

Electric heating

Inductive heating

Specific inductor configuration

C600S423000, C324S322000, C623S001150

Reexamination Certificate

active

11209219

ABSTRACT:
An apparatus, system and method of a resonator device with an adjustable capacitor for allowing the resonance frequency (F) of the resonator device to continue to be matched to the Larmor frequency of the MRI system. The resonator device includes an inductor coil, a conductive member, a sleeve having first and second sockets that receive at least portions of the inductor coil and the conductive member as electrodes to provide a capacitor structure. Dielectric material can be positioned between at least the first and second sockets, where changes in the cross sectional area defined by the induction coil cause changes in the capacitance value (C) as one or more of the electrodes move within the socket. Changes in the inductance and the capacitance values allow for the resonance frequency (F) of the resonator device to continue to be matched to the Larmor frequency of the MRI system.

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