| 摘要 |
<p>An esophageal drainage tube laryngeal mask airway of built-in obstruction type comprises a laryngeal mask and an esophageal drainage tube(4). The front end of the laryngeal mask is a mask sac(2) and the back end of the laryngeal mask is a breathing tube(1). The end of the breathing tube(1) opposite to the mask sac(2) is provided with an air supply joint(3). An inflation tube(5) is assembled on the air supply joint(3). A pressure indicator(6) is connected to the inflation tube(5). The laryngeal mask airway which has a single-tube multi-cavity structure made of the esophageal drainage tube(4) is set in the breathing tube(1). The esophageal drainage tube(4) is used for drainage of esophagus. An esophageal obstructive sheath sac(4-2) is mounted on the front end of the drainage tube(4). The laryngeal mask airway has function of esophagus obstruction, and also has characteristics, such as safety, simple structure, easy operation, and easy insertion.</p> |
