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US 12,465,414 B2Granted
Tissue ablation systems and method
AssigneeHermes Innovations LLC
InventorsAkos Toth, Csaba Truckai
Life of this patent
Estimating the term…
Abstract
Tissue is treated using a radiofrequency power supply connected to an applicator having a chamber filled with an electrically non-conductive gas surrounded by a thin dielectric wall. A radiofrequency voltage is applied at a level sufficient to ionize the gas into a plasma and to capacitively couple the ionized plasma with the tissue to deliver radiofrequency current to ablate or otherwise treat the tissue.
Claims20
A method of applying energy to tissue, said method comprising:
- engaging a dielectric wall against the tissue, the dielectric wall defining a chamber therein;
- delivering an electrically non-conductive gas into the chamber;
- applying a voltage between a first electrode and a second electrode to initiate ionization of the gas into a plasma completely contained within the chamber and separated from the tissue by the dielectric wall;
- and
- capacitively coupling the plasma across the dielectric wall and into the tissue.
2 more elements
A method of applying energy to tissue, said method comprising:
- engaging a dielectric wall against the tissue, the dielectric wall defining a chamber therein;
- delivering an electrically non-conductive gas into the chamber;
- passing a radiofrequency energy between a first electrode within the chamber and a second electrode exterior of the chamber to initiate ionization of the gas into a plasma completely contained within the chamber and separated from the tissue by the dielectric wall;
- and
- ablating the tissue with the radiofrequency energy.
2 more elements
Dependencies are inferred from the claim text.