Electrically tunable tissue ablation system and method
US9326819B2 · kind B2 · utility
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17References
9Claims
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Assignee
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Key dates
| Filing date | Apr 15, 2009 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | May 16, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1869
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ablation system which transmits radio frequency (RF) energy for the ablation of biological tissues has a transmission line and an RF antenna disposed at the distal portion of the transmission line. An RF signal generator supplies RF energy to the proximal end of the cable for transmission to the antenna, and an electrically tunable transformer is connected between the signal generator and the antenna. The transformer is tuned based on detection of the reflected power level from the antenna so as to reduce or minimize reflected power, thereby increasing RF energy coupling between the antenna and tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.