The double-channel drainage tube can to the greatest extent drain away hydrops to greatly expand the thoracic tissues and to make splanchnic layer pleurae adhere firmly.

• 双腔管引流可最大限度排净胸水 ,使肺组织充分膨胀 ,脏层与壁层胸膜紧贴在一起 ,产生粘连 ,从而抑制大量渗出。