Lymphangiogenesis inducing device

A method of forming a wound using a lymphangiogenesis inducing device, the method comprising:

• providing the lymphangiogenesis inducing device, which comprises:
• a puncture member comprising a distal end portion configured to puncture living tissue, and a through hole penetrating the puncture member along a central axis and extending from the distal end portion toward a proximal end, and
• a rod-shaped body inserted into the through hole and configured to be moved so as to protrude from the distal end portion, wherein:
• the rod-shaped body comprises a shaft portion, and a wound imparting structure comprising at least one protrusion located on the shaft portion and configured to impart a wound to the living tissue.
• identifying a blocked lymphatic vessel;
• identifying a regeneration route connecting the blocked lymphatic vessel and an adjacent lymphatic vessel;
• puncturing the living tissue with the lymphangiogenesis inducing device while the rod-shaped body is located in the through hole;
• passing the lymphangiogenesis inducing device through the regeneration route;
• pulling back the puncture member along the regeneration route while the rod-shaped body is left in the living tissue;
• pulling back the rod-shaped body along the regeneration route such that the at least one protrusion forms a wound in the living tissue along the regeneration route.