Animal experiment showed that in aerosol therapy after tracheotomy the drug distribution,homogeneity,depth and dosage were all better than in dropping therapy.

• 结果显示：喷雾法药物在呼吸道内的分布、分布的均匀性、部位的深浅以及用药剂量等方面，效果明显优于常规滴药法。