Patent ID: 7303558

Claim:
A tissue cooling apparatus for use with an electrophysiology apparatus including a shaft and at least one energy transmission device supported on the shaft, the tissue cooling apparatus comprising: a base member defining an interior lumen that is slightly larger than the electrophysiology apparatus shaft and a proximal opening connected to the interior lumen and adapted to receive the electrophysiology apparatus shaft and facilitate passage of the electrophysiology apparatus into the interior lumen, the base member including a fluid lumen port in fluid communication with the interior lumen; a tubular member, associated with the base member, defining a proximal end, a distal end, an interior lumen substantially aligned with the base member interior lumen and at least one aperture located between the proximal and distal ends; and an outer member supported on the tubular member such that a fluid transmission space is defined between the outer member and the tubular member and the at least one aperture is located within the fluid transmission space.