Multiple antenna ablation apparatus and method
US5913855A · kind A · utility
100Cited by
245References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1997 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Nov 3, 2017 |
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. The multiple antenna device includes a primary antenna with a lumen and a longitudinal axis, and a secondary antenna positionable in the lumen. At a selected tissue site the secondary antenna is deployed in a lateral direction relative to the 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 through tissue. A cable couples one or both of the antennas to an energy source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.