从古罗马时代起外科止血带已用于肢体以阻断血流,开始时用于控制损伤或急症截肢后的严重出血,19世纪中叶已在选择性手术时应用。用压力计测定充气袖带中的压力,若有误差可产生一定影响。读数偏低可造成对肢体的压力过度,并引起局部组织损伤或神经瘫痪:读数偏高又可使血流 Since ancient Rome, surgical tourniquets have been used in limbs to block blood flow, initially to control severe bleeding after injury or emergency amputation, and have been used during selective surgery in the mid-19th century. Pressure gauge used to measure the pressure in the inflatable cuff, if any error can have a certain impact. Low readings can cause excessive pressure on the limbs and cause local tissue damage or neuropathic paralysis: high readings and blood flow