| 摘要 |
PCT No. PCT/US95/01904 Sec. 371 Date Aug. 30, 1996 Sec. 102(e) Date Aug. 30, 1996 PCT Filed Mar. 1, 1995 PCT Pub. No. WO95/23624 PCT Pub. Date Sep. 8, 1995An integrated system providing a mechanical and chemical barrier against the spread of infected secretions into the distal trachea is disclosed. An endotracheal tube is used for patient airway management and provides a means to conveniently irrigate and drain the subglottic region below the vocal cords and above an inflated cuff. The subglottic region accumulates liquid secretions that may channel past an inflated endotracheal tube cuff, providing the necessary bacterial inoculum leading to bronchitis and nosocomial pneumonia. An irrigation channel delivers liquids such as saline or antibiotic and antifungal medications for mucosal hydration, and bactericidal action against infected subglottic secretions. An outer sleeve surrounding the endotracheal tube forms a suction lumen for removing the secretions. Electronic and mechanical controls provide regulated volume infusion and regulated suction. |
