Patent ID: 8795227

Claim:
A catheter for infusing drugs to a target area of a wall of a biological path comprising: a tubular catheter body having an inner lumen and more than one fluid communication structure formed on the exterior of the catheter body, each of the fluid communication structures comprising more than one conduit; means for generating a trap against the wall, wherein the means for generating a trap comprises an inflatable balloon structure attached to the catheter body, the balloon structure is configured to form a trap around the target area of the wall in an inflated state, wherein at least a portion of the more than one conduit is surrounded by the balloon structure; and means for infusing a drug into the trap, wherein the more than one conduit allows a body fluid to flow through the biological path without entering the trap, and wherein the inner lumen comprises two parallel channels and a valve that opens and closes between said channels in the inner lumen further wherein said valve is distal to the balloon structure.