| 摘要 |
PROBLEM TO BE SOLVED: To effectively irradiate the diseased part located at a deep part with laser light while easily and surely preventing the damage of normal tissues. SOLUTION: A laser radiating device 1 is a side radiation type laser radiating device for irradiating the viable tissue with the laser light having deep living body reachable property and is composed of a long sheath 2, working lumens 23 and 22 for the sheath 2 and movably installed laser probes 3 and 4. The laser probes 3 and 4 are respectively composed of optical fibers 31 and 41 and reflectors 32 and 42 provided at the top end parts of these fibers. When an interval between the reflectors 32 and 42 is changed by moving any one of or both the laser probes 3 and 4 in the lengthwise direction of the sheath 2, the position concentrating (converging) the laser beams reflected on these reflectors, namely, a target position 5 is moved vertically to the axial line of the sheath 2. |
