Patent ID: 7998140

Claim:
An electrosurgical device to treat tissue in a presence of radio frequency power and a fluid provided simultaneously from a distal portion of the device, the device having a proximal end and a distal end and comprising: a handle; a shaft extending from the handle, the shaft supporting an electrode tip in rigid relation to the handle and having a distal end; a fluid passage being connectable to a fluid source of the fluid; the electrode tip comprising a single metal contact element providing an electrode having a distal portion and a proximal portion, the distal portion of the electrode extending distally beyond the distal end of the shaft, the proximal portion of the electrode being contained within the shaft; the distal portion of the electrode comprising an electrically conductive cone shaped portion, the cone shaped portion having a circular portion which narrows towards the distal end of the device along an electrically conductive cone shaped surface; and at least one fluid outlet opening in fluid communication with the fluid passage, wherein the at least one fluid outlet opening is located at the distal end of the shaft and is defined by the distal end of the shaft and a portion of the electrode adjacent the distal end of shaft.