Tumor ablation apparatus
US5928229A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ablation apparatus has a multiple antenna device with a primary antenna and a secondary antenna positionable in a lumen of the primary antenna. The secondary antenna is at least partially deployable from the primary antenna in a lateral direction relative to a longitudinal axis of the primary antenna with at least one radius of curvature. A distal end of the primary antenna is sufficiently sharp to pierce tissue. The primary and secondary antennas are configured to provide a selectable geometric ablation of a selected tissue mass. An insulation sleeve is positioned on an exterior of the primary antenna. One or more cables are coupled to the multiple antenna device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.