在药剂生产中，广泛采用过滤操作来分离悬浮液以获得澄明液体。医院药局配制注射液、眼用溶液及其它液体，由于药液种类多、星小，使用常压、减压、加压方法过滤，没有成型的过滤装置。目前过滤介质一直沿用脱脂棉、布氏漏斗、垂熔玻璃滤器等，药液质量得不到保证，危害人体健 In pharmaceutical production, filtration operations are widely used to separate suspensions to obtain clear liquids. The hospital Pharmacopoeia prepares injections, ophthalmic solutions, and other liquids. Due to the large variety of liquids and the small size of the star, it is filtered using normal pressure, decompression, and pressure. There is no molding filter. At present, the filter medium has been using absorbent cotton, Buchner funnel, vertical melting glass filter, etc., and the quality of the liquid is not guaranteed, which is harmful to human health.