| 摘要 |
<p>A multiple lumen endotracheal tube having a main lumen (12), an inflatable cuff (28) concentrically formed around the main lumen (12) near its distal end (13), a cuff inflation lumen (24) in fluid communication with the cuff (28), a dedicated suction lumen (20) having a plurality of stacked suction eyelets (22) formed near the end of the suction lumen (20) directly above the cuff (28) and suction trigger (30) in fluid communication with the suction lumen (20) for aspirating secretions pooled in the trachea above the cuff (28). The suction and cuff inflation lumens (20, 28) comprise passages extending longitudinally through the wall of the main lumen (12) and tube extensions extending outside the main lumen. A lavage port (16) is connected in fluid communication to the suction lumen (20) for selectively and intermittently irrigating the trachea above the cuff (28) prior to aspiration of pooled secretions. The multiple suction eyelets (22) are strategically placed to prevent the cuff (28) from being drawn up against the suction eyelets (22) during aspiration and to provide access to the suction lumen (20) when one or more of the suction eyelets (22) are blocked.</p> |
