Radio frequency applicator

US12350015B2 · kind B2 · utility

Assignees

• ENDRA Life Sciences Inc. · US
• Duke University · US

Inventors

• Dima Shmidov · Durham, US
• Paolo Maccarini · Durham, US
• Idan Steinberg · Superior Charter Township, US
• Michael M. Thornton · London, CA
• Christopher Nelson Davis · Ann Arbor, US

Key dates

• Filing date: Nov 10, 2023
• Grant date: Jul 8, 2025
• Expiry date: Apr 5, 2044

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/4244
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A radio frequency applicator, including a waveguide having a first interior surface comprising a first aperture, a second interior surface opposing the first interior surface, a third interior surface adjacent to the first and second interior surfaces, a fourth interior surface opposing the third interior surface, and a fifth interior surface perpendicular to the first, second, third, and fourth interior surfaces, an aperture antenna, a solid dielectric insert within the waveguide, the solid dielectric insert having a second aperture formed therethrough that is configured for alignment with the first aperture, an RF connector, configured to receive generated RF energy pulses, at least one planar-shaped shim, having a third aperture therethrough configured to align with the first and second apertures, and a radio frequency feed pin connected to the RF connector, disposed within the first, second, and third apertures and affixed to the second interior surface of the waveguide.