The present invention relates to a laser treatment device. In the present invention, a handpiece (300) having a laser irradiator (310) for irradiating a specific area of the body skin with a laser is connected to a main body (100) of the laser treatment device (10). The handpiece (300) is provided with a refrigerant injection nozzle (400) for injecting a refrigerant gas. A refrigerant supply line (501) is provided between a refrigerant tank (200) and the refrigerant injection nozzle (400) provided in the main body (100). At least one or more of a laser generator (110), the refrigerant tank (200), the refrigerant injection nozzle (400), and the refrigerant supply line (501) provided in the main body (100) are controlled by a controller (700). The refrigerant injection nozzle (400) is detachably provided with a decompression member (600) for reducing the pressure of the refrigerant gas injected from the refrigerant injection nozzle (400) to a pressure lower than the pressure of the refrigerant supplied from the refrigerant supply line (501). The refrigerant supply line (501) is branched into first and second branch lines (510, 520), and first and second solenoid valves (530, 540) are installed on the first and second branch lines (510, 520), respectively, to operate under the control of the controller (700). According to the present invention with such a configuration, since the refrigerant gas can be continuously and smoothly supplied, the refrigerant gas can be sprayed on the treatment site in time, and the refrigerant gas can be evenly sprayed to the specific area of the skin, even around the specific area.COPYRIGHT KIPO 2019본 발명은 레이저 치료 장치에 관한 것이다. 본 발명에서 레이저 치료 장치(10)의 본체(100)에는 레이저를 신체 피부의 특정 영역에 조사하는 레이저 조사기(310)가 구비되는 핸드피스(300)가 연결된다. 상기 핸드피스(300)에는 냉매가스를 분사하는 냉매 분사노즐(400)이 구비된다. 본체(100)에 구비되는 냉매탱크(200)와 냉매 분사노즐(400) 사이에는 냉매 공급라인(501)이 구비된다. 본체(100) 내부에 구비되는 레이저 발생기(110) 및 냉매탱크(200)와, 냉매 분사노즐(400) 및 상기 냉매 공급라인(501) 중 적어도 하나 이상은 컨트롤러(700)에 의해 제어된다. 상기 냉매 분사노즐(4
