关键词: 大鼠, 可视, 气管插管, 挖耳勺

Abstract: Objective To evaluate the effective method of oral trachea intubation with the isoflurane induction in rats. Method Forty rats were randomly divided into the improved group and the conventional group, a comparison of the success rate of first intubation, intubation frequency, intubation times. Result The time and frequency of intubation were significantly less in the improved group than those in the conventional group. The success rate of the first intubation in the improved group was obviously higher than that of the conventional group (95% vs 50%，P<0. 05).Conclusion The improved method of Oral Trachea Intubation under direct vision is superior to the conventional method , This technology is worthy to be widely used.

Key words: rat, direct vision, trachea intubation, light earpick