Microwave ablation devices including expandable antennas and methods of use
US9949794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2009 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | May 11, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00267
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A microwave ablation device for treating tissue includes an inner conductor having a length and a distal end and configured to deliver energy, a wire extending adjacent the inner conductor and axially translatable relative thereto, the wire including a length and a distal end, a distal tip disposed in mechanical cooperation with the distal end of the inner conductor and the distal end of the wire; and an outer conductor including a distal end and defining a longitudinal axis, the outer conductor at least partially surrounding the inner conductor and the wire at least partially along their lengths. The distal tip is movable substantially along the longitudinal axis with respect to the outer conductor and relative movement of the distal tip towards the distal end of the outer conductor causes at least a portion of the inner conductor to move away from the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.