Directional reflector shield assembly for a microwave ablation instrument
US6245062A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1998 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Oct 23, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1437
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A directional reflective shield assembly (25) is provided for a microwave ablation instrument (20) having an antenna (23) coupled to a transmission line (21). The antenna (23) is formed to generate an electric field sufficiently strong to cause tissue ablation. The shield assembly (25) includes a cradle device (26) disposed about the antenna (23) in a manner substantially shielding a surrounding area of the antenna (23) from the electric field radially generated therefrom. The cradle device (26) further provides a window portion (27) communicating with the antenna (23) which is strategically located relative the antenna to direct a majority of the field generally in a predetermined direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.