随着近年来癌性和结核性胸腔积液发生率增加，需要将胸水排尽以利诊断和治疗的病例也越来越多，对结核性者是为了防止粘连和胸膜增厚，对癌性者是为了促进粘连形成。但要排尽胸水用常规穿刺法很困难，即使用导管法也可能引起气胸、休克。复张后肺水肿（RPE，其死亡率为20％左右 With the recent increase in the incidence of cancerous and tuberculous pleural effusion, pleural effusion needs to be discharged to facilitate the diagnosis and treatment of the cases are also more and more to tuberculous is to prevent adhesions and pleural thickening of cancer The purpose is to promote adhesion formation. However, to drain the pleural fluid using conventional puncture method is very difficult, that is, the catheter method may also cause pneumothorax, shock. Post-extension pulmonary edema (RPE, the mortality rate of about 20%