Multiple antenna ablation apparatus and method
US5672173A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1995 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Dec 19, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ablation treatment apparatus has a multiple antenna device with a primary antenna and a secondary antenna. The secondary antenna is positioned in a lumen of the primary antenna as the primary antenna is introduced through tissue to a selected tissue site. At the tissue site the secondary antenna is deployed from the primary antenna in a lateral direction relative to a longitudinal axis of the primary antenna. At least a portion of a distal end of the secondary antenna is structurally less rigid than the primary antenna. The primary antenna is constructed to be rigid enough to be introduced and advanced through tissue. A cable couples the energy source to one or more of the antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.