Patent ID: 11911098
Assignee: EVANESC THERAPEUTICS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of using an apparatus for treating tumors, the method comprising:
providing the apparatus comprising: an RF source generating an RF signal having a frequency of 100 kHz to 500 kHz at an output; an electrically conducting wire(s) or RF coaxial cable coupled to the output of the RF source; an open-ended coaxial waveguide antenna coupled to the electrically conducting wire or RF coaxial cable; and an electrical configuration comprising a pair of conductors at a voltage differential provided within the open-ended coaxial waveguide antenna to generate substantially a plurality of evanescent waves within a spatial volume, while reducing one or more travelling waves within the spatial volume generated by the electrical configuration; and a field distribution configured from the electrical configuration of the open-ended coaxial waveguide antenna and the field distribution characterizing the spatial volume; and
positioning the spatial volume within a vicinity of a tumor such that the spatial positioning provides a higher strength electric field comprising the plurality of evanescent waves within the vicinity of the tumor and provides a lower strength electric field outside of the vicinity of the tumor.