| 摘要 |
A tracheal tube ventilation apparatus (10) to more effectively remove expire d gases. In one embodiment, one or more leak holes (40) are created in the sid e walls of an endotracheal tube (12) so that expired gases can leak out of the endotracheal tube (12) above the larynx. Each leak hole (40) might have a diameter between 0.5 and 4.0 mm. In another embodiment, a tube (12) is attached to a proportionately larger leak hole (40) so that the expired gase s can be directed away from the leak hole to a specific location. In the case of mechanically controlled ventilation, a positive end expiratory pressure can be applied to this tube (12) to mechanically assist with the process of exhalin g. In each of these embodiments, it is preferred, but not required, that the endotracheal tube 912) be an ultra-thin walled, two-stage tube (12) so as to further assist in the reduction of resistance to the flow of oxygen/air.</SD OAB>
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