Patent ID: 9011428
Filing Date: 2015-04-21
Classification: A61B

Abstract:
1. An electrosurgical wand for electrosurgically treating a target tissue comprising: an elongate shaft having a proximal handle end and a distal end; a first active electrode surface disposed on the distal end of the shaft and a first digester electrode surface recessed away from the first active electrode surface and electrically connected with the first active electrode surface; and an aspiration aperture disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen; and a return electrode located proximal to the active electrode comprising a crescent shaped discharge aperture, the crescent shaped aperture comprising a central axis coaxial with a first largest opening portion of the aperture and wherein the central axis is further disposed approximately in line with the first active electrode surface; and wherein the crescent aperture further comprises two narrower opening portions that extend from the central axis, in a lateral and distal direction.