在中药提取中，渗漉是一种常用的方法。市售的渗漉器不能在密封状态下连续自动渗漉，为此．我们研制成密闭自控渗漉器，实现了全密封连续渗漉,使用方便，提高了渗漉效果。1结构渗漉器由港媒贮存器、渗漉筒、药液收集器、自控阀四部分组成，采用医用PVC材料。外溶媒贮存器通过自 In the extraction of traditional Chinese medicines, percolation is a common method. Commercially available osmotic devices do not automatically percolate in a sealed state for this purpose. We have developed a self-contained sealed osmotic device that achieves full hermetically continuous percolation, which is easy to use and improves the seepage effect. 1 structural infiltration device consists of Hong Kong media storage, infiltration tube, liquid collection device, automatic control valve composed of four parts, using medical PVC material. External solvent reservoir through