一、减少滤柱滤孔阻塞的方法在制造溶液的过程中(特别是制造注射剂时),常常会应用到滤柱来过滤。滤柱在长久使用以后,滤孔常因微粒的阻塞,而影响过滤的效率,需要进行洗涤(洗涤方法群见本刊3卷1期第10页)。但由於滤柱的滤孔较细,且质地松脆,洗涤起来很感困难; First, to reduce the filter plug hole blocking method in the manufacturing process of the solution (especially when manufacturing injections), often applied to the filter to filter. After the filter column is used for a long time, the filter pores are often obstructed by the particles, which affects the efficiency of the filtration and need to be washed (see the wash method group in Volume 3, No. 1 issue, page 10). However, due to the fine filter pores and crisp texture, it is difficult to wash them.