| 摘要 |
We disclose an airway assembly and methods of use The assembly comprises an outer tube with a plurality of distal Murphy eyes or other apertures The coaxial, inner tube freely slides within the outer tube and comprises a sealing mechanism The inner tube and cooperating sealing mechanism can be advanced or retracted within the outer tube to cover or leave open the apertures, thereby controlling the flow of gases and fluids through the assembly The sealing mechanism can also be extended beyond the outer tube into an airway to selectively control the flow of air therein The outer and inner tubes may be tapered and may contain additional sealing mechanisms, used alone, in combination or in series. |
