| 摘要 |
Treatment of a pneuomothroax or other condition wherein unwanted fluid is present in a pleural cavity is achieved using a system comprising a chest device (1) and a mouth device (3). The chest device comprises a catheter having at least one opening and a one-way outlet valve arrangement. The mouth device comprises a body defining a cavity, a mouthpiece opening into the cavity, a one-way inlet valve arrangement, and a one-way outlet valve arrangement opening at a positive pressure greater than the outlet valve arrangement of the chest device. The catheter of the chest device is inserted through the chest to open into the pleural cavity (50). The mouthpiece of the mouth device is placed in the mouth. The patient inhales and exhales through the mouth device. During exhalation a positive pressure is developed in the chest against the outlet valve arrangement of the mouth device, which drives the unwanted fluid out of the pleural cavity through the chest device.
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