采用连续流动系法对肝动脉栓塞用莪术油明胶微球的体外释放特性进行了研究，结果表明不同的流速、介质、交联剂用量及交联时间和微球的粒径均对体外释放有影响，但灭菌对微球的体外释放无影响。12 小时后，释放80%的药物。药物从微球中的释放符合一级动力学模型，释放机制为溶蚀加扩散。 The in vitro release characteristics of zedoary oil microspheres for hepatic arterial embolization were investigated using a continuous flow method. The results showed that different flow rates, media, cross-linking agents, cross-linking time, and particle size of microspheres were all released in vitro. Impact, but sterilization has no effect on the in vitro release of microspheres. After 12 hours, 80% of the drug was released. The release of the drug from the microspheres conformed to the first-order kinetic model. The release mechanism was dissolution and diffusion.