Hollow conductive coaxial cable for radio frequency based tissue ablation system
US8308722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2007 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Aug 16, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/183
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hollow coaxial cable adapted for conduction of radio frequency (RF) energy, particularly microwave energy, has a proximal end and a distal end and comprises coaxial inner and outer conductors extending substantially the entire length of the cable from the proximal end to a distal end portion of the cable with a dielectric medium disposed between the inner and outer conductors. The inner conductor comprises an elongated electrically conductive tubular member having a hollow, axially extending lumen, and the outer conductor comprises an elongated electrically conductive tubular member disposed in a substantially coaxial relationship over at least a portion of the inner conductor. An ablating member which delivers radio frequency energy, particularly microwave energy, to body tissue is disposed at a distal end portion of the cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.