论文部分内容阅读
呼吸生理的传统概念认为,如果每次吸入的气体容量等于或小于解剖死腔,那么气体不能达到肺泡进行有效的气体交换,病人会因缺氧和二氧化碳积蓄而死亡。然而,所谓的高频喷射通气(HJ-JV)或高频正压通气(HFPPV),以及高频振荡(HFO),对传统的呼吸生理概念提出了挑战,引起广大医务工作者和生物医学工程工作者的重视。所谓高频通气即利用喷射气流的特性,克服死腔,缩短吸气时间,达到用较小的通气
The traditional concept of respiratory physiology holds that if the volume of gas inhaled at each inhalation is equal to or less than the anatomical dead space, the gas can not reach the alveoli for effective gas exchange and the patient dies of hypoxia and carbon dioxide savings. However, the so-called HJ-JV or HFPPV and HFO pose challenges to the traditional concept of respiratory physiology, which has caused widespread medical and biomedical engineering Worker’s attention. The so-called high-frequency ventilation that is the use of jet flow characteristics to overcome the dead space, shorten the inspiratory time, with a smaller ventilation