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近年来冷冻疗法已被广泛应用于眼、耳鼻喉、口腔、皮肤、外、妇、脑等科。液氮沸点为-196℃,利用液氮液相变为气相(气化)大量吸热的效应致冷,最低温度能达到-196℃。动物实验和临床应用,温度在-120℃以下即可造成组织细胞内外冰晶形成,细胞膜损伤、破裂、细胞脱水,致使电解质浓度骤变,并使小血管收缩,血栓形成,组织缺血,细胞死亡。临床应用这些作用治疗各种肿瘤等疾患。
Cryotherapy in recent years has been widely used in the eye, ENT, oral, skin, external, women, brain and other subjects. Liquid nitrogen boiling point of -196 ° C, the use of liquid nitrogen into the liquid phase (gasification) a large number of endothermic cooling effect, the minimum temperature can reach -196 ℃. Animal experiments and clinical applications, the temperature below -120 ℃ can cause the formation of intracellular and extracellular ice crystals, cell membrane damage, rupture, cell dehydration, resulting in sudden changes in electrolyte concentration, and to small vasoconstriction, thrombosis, tissue ischemia, cell death . These effects of clinical treatment of various diseases and other diseases.