Abstract: The present invention relates to a method, device, and system for improved mapping and/or ablation of a tissue. The device may generally include an elongate body and a distal assembly affixed to the elongate body that includes a treatment electrode having a conductive mapping region and a selectively conductive ablation region that is conductive of high-frequency current and substantially non-conductive of low-frequency current. Alternatively, the device may generally include a treatment electrode having a conductive mapping or ablation region and a region that is coated with an electrically insulated but thermally conductive layer.
Type:
Grant
Filed:
February 11, 2021
Date of Patent:
October 1, 2024
Assignee:
Medtronic Ablation Frontiers LLC
Inventors:
Mark T. Stewart, Mark Allen Benscoter, Jon Virgil Evans, Timothy G. Laske, Gonzalo Martinez
Abstract: Various methods, systems, and devices for treating tissue ablation are disclosed. Some embodiments disclosed herein pertain to methods of treating tumors, systems used for irradiating tissue and tumors with electromagnetic radiation, components and devices of that system, and kits for providing systems used for irradiating tissue and tumors with electromagnetic radiation. In some embodiments, the system provides sub-ablative infrared radiation that is absorbed by nanoparticles. In some embodiments, the nanoparticles absorb the radiation converting it into heat energy. In some embodiments, though the infrared radiation itself may be sub-ablative, the heat energy generated by the nanoparticles is sufficient to cause thermal coagulation, hyperthermia, and/or tissue ablation.
Type:
Grant
Filed:
March 30, 2021
Date of Patent:
July 16, 2024
Assignee:
NANOSPECTRA BIOSCIENCES, INC.
Inventors:
Glenn Patrick Goodrich, Jon Alexander Schwartz, Andrew Mark Murphy