Patent ID: 7163533

Claim:
A catheter device for treating a vascular disease comprising: an energy delivery device having an energy delivery portion including an energy emission tip; and a catheter having an end hole at its distal end and being operable to be inserted into a blood vessel and including: at least one lumen through which the energy delivery portion and a fluid is received, the at least one lumen being coaxial with a longitudinal axis of the catheter; and a plurality of exits disposed in the sidewall of the catheter and being in communication with the at least one lumen for administration of the fluid into the blood vessel, the plurality of exits being longitudinally spaced from the energy delivery portion; wherein the energy delivery device has a protected position in which the energy emission tip is positioned within the at least one lumen and an operating position in which the energy emission tip extends outside and distally of the end hole; wherein the energy delivery portion occludes the end hole to prevent the fluid from exiting through the end hole in both the operating position and the protected position.