Microwave applicator for endometrial ablation
US6635055B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Dec 13, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1861
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A microwave applicator for applying electromagnetic radiation at microwave frequency includes a coaxial input for a microwave signal input and a waveguide for receiving and propagating the microwave signal input. Dielectric material is positioned within the waveguide and extends beyond the waveguide to form an antenna for radiating microwave energy. The coaxial input has direct in-line transition to the dielectric-filled waveguide. Preferably, this direct in-line transition is achieved by the central conductor of the coaxial input extending axially centrally into the waveguide so as to excite microwaves in the waveguide. A lateral conductor extends radially from the central conductor to assist the launch of the microwaves into the waveguide. Preferably, the applicator includes a temperature sensor which is directly connected to the coaxial input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.