肺“溢流”实验是Konzett和Roessler①设计的一种利用动物肺充气量的变化来测定支气管平滑肌的舒缩状态的实验方法,这个方法的特点,Alberty②曾作了系统的评价。其原理是用人工呼吸器通过气管插管向动物肺中压人定量的空气,使动物进行被动呼吸。利用一个特制的水活门和汞活门,使人工呼吸器在把空气压入肺中的同时,能把肺吹张后过剩的空气“溢出”送入活塞容记器进行描画记录。由于这个方法能记录肺充气量,使得支气管平滑肌的在体实验可以粗略定量 The lung “overflow” experiment was developed by Konzett and Roessler (19) as an experimental method to determine the state of bronchial smooth muscle contraction and contraction using changes in animal lung inflation. The character of this method, Alberty, was systematically evaluated. The principle is to use artificial respirator through the endotracheal tube to the human lung quantitative human air pressure, so that animals passively breathing. Using a special water valve and mercury valve, the respirator can “blow out” excess air from the lungs while it pushes the air into the lungs and send it to a piston receiver to draw and record. Because this method can record lung inflation, bronchial smooth muscle in vivo experiments can be roughly quantitative