Multiple antenna ablation apparatus and method
US6958062B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1997 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Nov 6, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/183
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multiple antenna ablation apparatus includes an electromagnetic energy source, a trocar including a distal end, and a hollow lumen extending along a longitudinal axis of the trocar, and a multiple antenna ablation device with three or more antennas. The antennas are initially positioned in the trocar lumen as the trocar is introduced through tissue. At a selected tissue site the antennas are deployable from the trocar lumen in a lateral direction relative to the longitudinal axis. Each of the deployed antennas has an electromagnetic energy delivery surface of sufficient size to, (i) create a volumetric ablation between the deployed antennas, and (ii) the volumetric ablation is achieved without impeding out any of the deployed antennas when 5 to 200 watts of electromagnetic energy is delivered from the electromagnetic energy source to the multiple antenna ablation device. At least one cable couples the multiple antenna ablation device to the electromagnetic energy source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.