RESONATING RADIO FREQUENCY ABLATION DEVICE
First Claim
1. A method for ablating a tumor inside a bore of a magnetic resonance imager with a resonating radio frequency ablation device, the resonating radio frequency ablation device comprising a non-ferrous metallic rod adapted to wirelessly interact with radio frequency energy from a radio frequency transmitter of a magnetic resonance imager, the non-ferrous metallic rod having a distal tip, a longitudinal axis, and a resonant length for the magnetic resonance imager, the distal tip being configured to heat a tumor, the method comprising the steps of:
- (a) advancing a patient into the bore of the magnetic resonance imager;
(b) advancing the distal tip of the resonating radio frequency ablation device to an operative position at a tumor treatment site within the patient;
(c) orienting the resonating radio frequency ablation device in the magnetic resonance imager to interact with radio frequency waves from the radio frequency transmitter; and
(d) supplying radio frequency energy from the radio frequency transmitter to the resonating radio frequency ablation device sufficient to heat the distal tip of the non-ferrous metallic rod.
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Accused Products
Abstract
The invention relates to methods, systems, and devices for ablating a tumor with heat delivered from a non-ferrous metallic rod having a length adapted to support resonating radio frequency waves along the longitudinal axis of the rod. The tumor ablation may be carried out in an MRI where the radio frequency transmitter of the MRI wirelessly delivers the energy to heat the metallic rod.
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Citations
20 Claims
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1. A method for ablating a tumor inside a bore of a magnetic resonance imager with a resonating radio frequency ablation device, the resonating radio frequency ablation device comprising a non-ferrous metallic rod adapted to wirelessly interact with radio frequency energy from a radio frequency transmitter of a magnetic resonance imager, the non-ferrous metallic rod having a distal tip, a longitudinal axis, and a resonant length for the magnetic resonance imager, the distal tip being configured to heat a tumor, the method comprising the steps of:
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(a) advancing a patient into the bore of the magnetic resonance imager; (b) advancing the distal tip of the resonating radio frequency ablation device to an operative position at a tumor treatment site within the patient; (c) orienting the resonating radio frequency ablation device in the magnetic resonance imager to interact with radio frequency waves from the radio frequency transmitter; and (d) supplying radio frequency energy from the radio frequency transmitter to the resonating radio frequency ablation device sufficient to heat the distal tip of the non-ferrous metallic rod. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for ablating a tumor comprising:
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(a) a resonating radio frequency ablation device comprising a non-ferrous metallic rod adapted to wirelessly interact with radio frequency energy from a radio frequency transmitter, the non-ferrous metallic rod having a distal tip, a longitudinal axis, and a resonant length for the radio frequency transmitter, the distal tip being configured to heat a tumor; (b) a radio frequency transmitter; and (c) an imaging system. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A resonating radio frequency ablation device comprising:
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a non-ferrous metallic rod adapted to wirelessly interact with radio frequency energy from a radio frequency transmitter of a magnetic resonance imager, the non-ferrous metallic rod having a distal tip, a longitudinal axis, and a resonant length for the magnetic resonance imager, wherein the distal tip is configured to heat a tumor; and a housing, the housing having a distal end and a distal opening, where the non-ferrous metallic rod is substantially surrounded by the housing with the distal tip projecting through the distal opening of the housing, wherein the distal end of the housing is adapted to sealingly engage the non-ferrous metallic rod. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification