Patent ID: 6383182
Filing Date: 2002-05-07
Classification: A61B

Abstract:
A directional ablation instrument for ablation of a targeted tissue comprising:a transmission line having a proximal portion suitable for connection to an electromagnetic energy source; a single elongated antenna having a central axis and an end coupled to the transmission line to generate an electric field sufficiently strong to cause tissue ablation of the targeted tissue; and an elongated antenna assembly having a central axis and including an elongated ablation surface extending longitudinally along an exterior surface portion of the antenna assembly, said ablation surface being adapted to be positioned adjacent to or in contact with the targeted tissue during operable use of the antenna, said antenna being located within said antenna assembly, wherein the central axis of said antenna is off-set from the central axis of the antenna assembly, and said antenna assembly further being adapted to direct a majority of the electromagnetic field generally in a predetermined direction across the ablation surface.