Electrosurgical instrument with impedance transformer for delivering microwave energy
US11083522B2 · kind B2 · utility
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3References
22Claims
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Assignee
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Key dates
| Filing date | Jun 17, 2016 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Jul 20, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1861
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical instrument for delivering microwave energy having a predetermined frequency into biological tissue in contact with the instrument, wherein the instrument comprises a first coaxial transmission line having a second coaxial transmission line connected to the distal end thereof, the second coaxial transmission line having a length and a characteristic impedance that are configured to match the impedance of the first coaxial transmission line to the load impedance at the distal end of the distal coaxial transmission line when the instrument is in contact with the tissue, at the operating frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.