Hansen A, Niemala J R, Oslen G I
Anaesthesia. 1975 Jan;30(1):78-9. doi: 10.1111/j.1365-2044.1975.tb00801.x.
A thin catheter mounted on the upper surface of a tracheostomy tube enables a flow of air to reach the vocal cords and makes vocalisation possible during artificial ventilation.
安装在气管造口管上表面的细导管使空气能够流向声带,并在人工通气期间实现发声。