下颌骨折病人,血液凝固性增高保持到伤后3～5周,作者在综合治疗中,选用直流电导入肝素的方法,肝素直接进入骨折部,用小剂量达到局部高浓度,药效维持时间长。材料和方法:第1组下颌骨折87人从伤后第3天开始导入肝素0.4毫升(2000单位),溶解在10～15毫升蒸馏水中浸湿60cm~2布垫,贴紧骨折部皮肤用绷带固定,用阴极导入,电流密度0.05～0.1毫安/cm~2,每次20分钟,治疗7～10次。第2组(对照组)下颌骨折60人,导入5％氯化钙或3％碘化钾溶液。第3组20人,进行1次直流电疗法,测定直流电对下颌骨折病人凝血系统的影 Patients with mandibular fracture, blood coagulation increased to 3 to 5 weeks after injury, the author in the comprehensive treatment, the choice of DC into the heparin method, heparin directly into the fracture Department, with a small dose to achieve local high concentrations, long-term maintenance of efficacy. Materials and Methods: The first group of 87 cases of mandibular fractures from the third day after injury, the introduction of heparin 0.4 ml (2000 units), dissolved in 10 ~ 15 ml of distilled water and soaked 60cm ~ 2 cloth pad, close the fracture skin with bandage Fixed, with the cathode into the current density of 0.05 ~ 0.1 mA / cm ~ 2, each 20 minutes, the treatment of 7 to 10 times. Group 2 (control group) mandibular fracture of 60 people, into 5% calcium chloride or 3% potassium iodide solution. Group 3 20 people, a direct current therapy to determine the impact of DC on the coagulation system of patients with mandibular fracture