Patent ID: 7785324

Claim:
A tissue coagulation device, comprising: an insulation element comprising a lumen and a fluid slot; a support structure located within the lumen of the insulation element, the support structure comprising a wire lumen, a fluid infusion lumen, a fluid ventilation lumen, an infusion aperture, and a ventilation aperture; an electrode disposed on the support structure; and an energy transmission element coupled with the insulation element; wherein a fluid transmission space is defined between the support structure and an inner surface of the lumen of the insulation element, the fluid transmission space being circumferentially disposed around at least a portion of an outer surface of the support structure, wherein the fluid slot extends from the fluid transmission space to the energy transmission element, wherein the infusion aperture of the support structure allows fluid to enter the fluid transmission space from the fluid infusion lumen, and wherein the ventilation aperture of the support structure allows fluid to enter the fluid ventilation lumen from the fluid transmission space.