Electrosurgical methods and devices employing phase-controlled radiofrequency energy
AssigneeEndymion Medical Ltd.
InventorsDaniel Lischinsky, Yoram Harth
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Abstract
This disclosure relates generally to electrosurgical methods and devices. In one embodiment, an electrosurgical device is provided suitable for applying phase controlled RF energy to a treatment site. The electrosurgical device comprises a multi-electrode electrosurgical probe electrically coupled to a plurality of RF generators. Also provided are methods of use of such an electrosurgical device, as well as other electrosurgical devices. The methods and devices disclosed herein find utility, for example, in the field of medicine.
Claims55
A method for delivering energy to a target site of a patient comprising placing an electrosurgical probe into close proximity of the target site and delivering phase controlled RF energy to the electrosurgical probe.
A method for modifying living tissue, the method comprising exposing the tissue to an electric field, wherein the electric field is generated by an electrosurgical device comprising:
- (a) an electrosurgical probe comprising a plurality of electrodes electrically coupled to:
- (i) first and second RF sources;
- or (ii) an RF source comprising first and second RF outputs;
- and (b) means for controlling the phase between the RF energy supplied to the plurality of electrodes.
An electrosurgical system comprising:
- (a) a means for applying RF energy to a target site of a patient;
- and (b) a generator comprising:
- (i) first and second RF power sources or an RF power source comprising first and second RF outputs;
- and (ii) a means for controlling the phase between the first and second RF power sources.
An electrosurgical system for treating living tissue, the system being arranged to deliver phase controlled RF electrical energy to the living tissue.
A method for treating living tissue, the method comprising applying electrical energy to a surface of the tissue by means of an electrosurgical system comprising an electrosurgical probe electrically coupled to a generator, the electrical energy being sufficient to create one or more focal damage regions each having a width on the tissue surface in the range of about 1 μm to about 7000 μm, wherein tissue necrosis occurs only within the one or more focal damage regions.
A method for causing tissue necrosis comprising contacting a surface of the tissue with two or more electrodes and applying an electrical potential between the electrodes, wherein necrosis occurs in the area between the two electrodes and is confined to a region that has a diameter in the range of about 1 μm to about 4000 μm.
Dependencies are inferred from the claim text.