Flow distribution pad and methods for using them

Apparatus and methods are provided for delivering fluids into a patient's body that includes a tubular member including a proximal end, a distal end sized for introduction into a patient's body, and a fluid delivery lumen extending between the proximal and distal ends; and a flexible pad on the distal end including a tissue contacting surface, a passage communicating with the fluid delivery lumen, and plurality of capillary channels in the tissue contact surface communicating with the passage, the capillary channels configured to deliver fluid from the fluid delivery lumen and passage to tissue contacted by the tissue contact surface.