本文报告洋金花有改善大鼠气管微循环的作用,表现为气管微血管扩张、增多、延长;微循环明显改善的大鼠可存活30分钟以上;无明显改变者,给药后3～12分钟死亡,两者有显著差异(p<0.05),证明洋金花改善气管微循环可延长动物存活期。此外亦见到肠系膜小动、静脉略有扩张。 This article reports that Flos Daturae has the effect of improving the microcirculation of the trachea of ​​rats, which shows that the tracheal microvessels expand, increase, and prolong; the rats whose microcirculation is significantly improved can survive for more than 30 minutes; those without significant changes are 3 to 12 minutes after administration. There was a significant difference between the two deaths (p<0.05), demonstrating that Flos Daturae can improve the survival of the animals by improving microcirculation of the trachea. In addition, small mesenteric arteries and veins were also slightly expanded.