Patent ID: 8216225

Claim:
An irrigated ablation electrode assembly for use with an irrigated catheter device, comprising: a proximal portion and a distal portion disposed distal to the proximal portion, said proximal and distal portions having a longitudinal axis that extends from a proximal end of said proximal portion to a distal end of said distal portion, the distal portion defined by a substantially polygonal shaped body having sides forming a radial substantially polygonal cross-section; and the proximal portion having an outer body portion having an outer distal end surface, an inner cavity within the outer body portion, and a passageway for fluid that extends from the inner cavity to an orifice on the outer distal end surface of the proximal portion, the outer distal end surface being oriented toward the distal portion, the orifice being positioned in the relative center of a selected one of the sides of the polygonal body; the passageway being configured to direct fluid to flow onto the selected side substantially parallel to the longitudinal axis of the distal portion.