An energy delivery guide wire (10) including a guide wire proximal portion (12), a guide wire distal portion (14) and an energy delivery tip (16) extending from the distal portion (14)； the energy delivery tip (16) having a tip length, a proximal tip end (18) and a distal tip end (20)； at least the guide wire distal portion (14) extending in a first direction in an unbiased condition； the energy delivery tip (16) extending in a second direction different from the first direction； wherein the distal tip end (20) is offset from the proximal tip end (18) relative to the first direction by between 10 to 50 % of the tip length.
