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我院自1979年6月至1983年6月,用液氮冷冻疗法治疗多种皮肤病,其中随访观察1～3年者有25种皮肤病共1379例,取得较满意效果。治疗方法我们采用 BAY 小型液氮冷冻喷雾治疗器(空军军训器材厂生产),用喷射治疗法,使液氮直接喷射到病变皮肤或粘膜表面,以达到冷冻治疗目的。操作时将液氮冷冻喷雾治疗器的输液管口对准病变(喷口距皮肤0.5厘米),轻压控制阀后液氮呈白雾样线状喷出。喷射时间、次数及喷射量的多少,依性别、年龄、部位、皮损大小、厚薄而定。皮损面积小者,如雀斑、扁平疣、粟丘疹,每次喷射4～10秒钟,一般喷至皮损表面形成薄冰霜为度,间隔30秒～1分钟后再喷射
Our hospital from June 1979 to June 1983, with liquid nitrogen cryotherapy for the treatment of a variety of skin diseases, of which 1 to 3 years follow-up observation of 25 kinds of skin diseases were a total of 1379 cases, and achieved satisfactory results. Treatment We use BAY small liquid nitrogen frozen spray treatment (Air Force military equipment factory production), with jet therapy, the liquid nitrogen directly to the lesion skin or mucosal surface, in order to achieve the purpose of cryotherapy. The operation of the liquid nitrogen cryogenic spray treatment of the nozzle alignment of the lesion (spout from the skin 0.5 cm), light pressure control valve liquid nitrogen was white mist like linear discharge. Injection time, the number and the amount of injection, according to gender, age, location, lesion size, thickness may be. Small lesions, such as freckles, flat warts, milia, each injection of 4 to 10 seconds, the general spray to the surface of the lesion to form a thin frost for the degree interval of 30 seconds to 1 minute after the injection