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临床常因病员胸腹水、气胸而行穿刺抽液及胸腔闭式引流术治疗。传统的方法是穿刺针头连接胶管，为防气液倒流需每抽1次即夹闭1次胶管，费时费力，操作过程复杂且有污染性。气胸时手术更复杂。1995年12月-1996年2月笔者研制成功一种可实行自动启闭。单人连续操作的单向活瓣式抽
Patients often undergo puncture fluid drainage and closed thoracic drainage for thoracic ascites and pneumothorax. The traditional method is to connect the needle with a puncture needle to prevent the backflow of gas and liquid, which requires that the hose is clamped once per pumping, which takes time and labor, and the operation process is complicated and polluting. Pneumothorax surgery is more complicated. From December 1995 to February 1996, the author successfully developed an automatic opening and closing system. Single continuous operation with one-way flap pumping