PROBLEM TO BE SOLVED: To provide a blood vessel ablation device excellent in workability of blood vessel harvesting (blood vessel ablation).SOLUTION: A blood vessel ablation device 100I includes a guide part 200 arranged along the outer wall of a blood vessel, and a movable part 300I slidably connected to the guide part 200. The movable part 300I includes a connector 310 connected to the guide part 200 and an injection nozzle 700 provided to the connector 310 for injecting liquid L. The movable part 300I is moved while the liquid L is injected from the injection nozzle 700 so that the blood vessel is ablated in a state of being covered with tissues in the surrounding.SELECTED DRAWING: Figure 23
