Patent ID: 8628525

Claim:
An MR compatible interventional system comprising: an interventional catheter configured to be inserted in a human body located in a body coil of a magnetic resonance imager, the interventional catheter including: an electrically powered unit which carries out an interaction with an interior of the body, a resonant circuit which wirelessly receives RF electromagnetic energy, and converts the received RF electromagnetic energy into electric power, a remote unit remote from the interventional catheter and connected by only resistive wires with the interventional catheter, the resistive wires carrying feedback signals indicative of an amount of the electric power wirelessly delivered to the electrically powered unit by the resonant circuit, the remote unit including: an RF transmitter which generates the RF electromagnetic energy received by the resonant circuit, and a controller which controls the RF transmitter to control an amount of power in the generated RF electromagnetic energy in accordance with the feedback signals.