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US 11,896,282 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 system for applying energy to tissue comprising:
- a probe having an energy-delivery surface configured for spatiotemporal switching of focal points of energy application about the surface in contact with tissue;
- a gas-filled chamber interior of the energy-delivery surface;
- and
- voltage source configured for creating transitory plasma streamers within the gas-filled chamber to thereby provide spatial and temporal switching of energy coupling to the focal points.
1 more element
A system for applying energy to tissue, comprising:
- a probe including a dielectric material defining;
- a gas-filled Chamber, the dielectric material including an inner surface configured for gas contact with gas within the gas-filled chamber and an outer surface configured for tissue contact, the dielectric material configured for spatiotemporal switching of focal points of energy application;
- an interior electrode disposed within the gas-filled chamber;
- an exterior electrode disposed outside of the gas-filled chamber;
- a voltage source configured to provide a voltage between the interior electrode and the exterior electrode, thereby creating transitory plasma streamers within the gas-filled chamber in order to provide spatial and temporal switching of energy coupling to the focal points;
- and
- a controller configured to control the voltage source.
4 more elements
A system for applying energy to tissue, comprising:
- a gas-filled chamber including an inner surface configured for contact with gas within the gas-filled chamber and an outer surface configured for tissue contact, the gas-filled chamber formed of a dielectric material configured for spatiotemporal switching of focal points of energy application;
- a first electrode disposed within the gas-filled chamber;
- a second electrode disposed outside of the gas-filled chamber;
- and
- a voltage source configured to provide a voltage between the first electrode and the second electrode, thereby creating transitory plasma streamers within the gas-filled chamber in order to provide spatial and temporal switching of energy coupling to the focal points.
2 more elements
Dependencies are inferred from the claim text.