A drill containing treatment part A body portion having a guide hole capable of vertical movement of the treatment section and having a first sliding engagement structure on the outer side An optical fiber receiving part formed with a second sliding coupling structure corresponding to a first sliding coupling structure of the body part and being slidably movably coupled to the body part An optical fiber formed in the optical fiber accommodating portion in the longitudinal direction of the optical fiber accommodating portion and having an end to which light can be irradiated is exposed to the outside of one side of the optical fiber accommodating portion And a steering portion that is coupled to the optical fiber receiving portion at a point where the end portion of the optical fiber is exposed to the outside and is coupled to the end portion of the optical fiber.드릴을 포함하는 처치부 처치부가 수직운동가능한 안내공이 형성되고, 외측에 제1슬라이딩 결합구조를 가지는 몸체부 몸체부의 제1슬라이딩 결합구조와 대응되는 제2슬라이딩 결합구조가 형성되어 몸체부에 상대적으로 슬라이딩 운동가능하게 결합되는 광섬유수용부 광섬유수용부 내부에 광섬유수용부의 길이방향으로 형성되고, 광조사가능한 단부가 광섬유수용부의 일측의 외부로 노출되는 광섬유 및광섬유의 단부가 외부로 노출되는 지점에 광섬유수용부와 결합되고, 광섬유의 단부와 결합되는 조향부를 포함하는 의료용 기구가 제공된다.
