成份输血是近年来才发展起来的一种输血方法。国外从70年代开始,大多数技术先进的国家都开展了成份输血,有些国家的成份输血已占全部用血量的50%以上。由于成份输血具有纯度高、疗效好、输血安全和付反应少,且便于保存和运输,节约 Blood transfusion is a blood transfusion method developed in recent years. Abroad Since the 1970s, most of the most technologically advanced countries have carried out transfusion of blood components. In some countries, transfusion of blood has accounted for over 50% of the total amount of blood used. Because of the high purity of transfusion of blood, good curative effect, less blood transfusion safety and less response, and convenient for preservation and transportation, saving