| 摘要 |
PROBLEM TO BE SOLVED: To easily puncture tissue to be treated by a simple operation.SOLUTION: A guide wire 10 includes: a wire 11 which is flexible and has a hollow part therein; and a light irradiation part 12 which guides light for weakening tissue to be treated from the base end side to the tip side of the wire through the hollow part and irradiates the tissue to be treated with the light. In the guide wire, the light outgoing end of the light irradiation part is disposed closer to the base end side of the wire than the tip side of the wire. Since the light outgoing end of the light irradiation part is disposed closer to the base end side of the wire than the tip side of the wire, when the wire is pressed against the tissue to be treated, a part of the tissue enters the hollow part near the tip of the wire, a site irradiated with the light is thermally degenerated and weakened, and the weakened site can be punctured. |
