非肠道全营养液(Total parenteral nutrition,简称TPN)在临床上使多种复杂疾病患者的营养问题获得解决,从而使垂危病人的死亡率迅速下降。许多病人不能采用口服的方法摄取营养,则可采用非肠道营养,最常用的是静脉输液。但是一般静脉输液受到溶液浓度的限制,液体高浓度则渗透 Total parenteral nutrition (TPN) has clinically solved the nutritional problems of many complex disease patients, resulting in a rapid decline in the mortality rate of critically ill patients. Many patients can not use oral oral ingestion of nutrition, you can use parenteral nutrition, the most commonly used intravenous infusion. However, the general intravenous infusion of solution concentration limit, high concentration of liquid penetration