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    • 11. 发明授权
    • Aspirator pump
    • 抽油泵
    • US5934888A
    • 1999-08-10
    • US844298
    • 1997-04-18
    • Rudolf MarkaStefan MaierMatthias PeukerHans-Joachim KuhnWalter Scheller
    • Rudolf MarkaStefan MaierMatthias PeukerHans-Joachim KuhnWalter Scheller
    • F04B23/00A61M1/00F04B45/04F04B45/02
    • A61M1/0011Y10S417/903
    • An aspirator pump, especially for medical purposes, has a receptacle with two chambers arranged alongside each other, which are connected with a suction tube, and on each of which an element is arranged which is movable approximately parallel to the other, each partially enclosing a hollow space for generating a vacuum. The two movable elements are connected to each other by means of a lever, whose two end parts are attached at the upper area of the respective movable elements, and whose middle part is movably attached in a bearing positioned between the chambers. In the upper area of each movable element a one way valve is installed which opens when the pressure in the hollow space is higher than the surrounding air pressure. An easy operation and cleaning, as well as a reliable aspiration is obtained with the aspirator pump, owing to the fact that at all times a chamber and a movable element enclose a common, variable hollow space, wherein the movable element bounds the upper area of the hollow space. The two hollow spaces are connected through a common manifold with a connection for the suction tube of a catheter, and an additional one way valve is arranged at the entrance of each hollow space into the manifold, which closes when the pressure in the hollow space is greater than the surrounding pressure.
    • 特别是用于医疗目的的抽吸泵具有一个具有彼此并排设置的两个腔室的容器,它们与一个抽吸管连接,并且每个吸气器的一个元件布置成大致平行于另一个,每个部件包围一个 用于产生真空的中空空间。 两个可移动元件通过杠杆彼此连接,该杠杆的两个端部附接在各个可移动元件的上部区域,并且其中间部分可移动地附接在位于两个室之间的轴承中。 在每个可移动元件的上部区域中,当中空空间中的压力高于周围空气压力时,单向阀被安装成打开。 由于在任何时候都有一个腔室和一个可移动的元件包围一个共同的可变的中空空间,所以可以通过吸气泵获得容易的操作和清洁以及可靠的抽吸,其中可移动元件限定了 中空空间。 两个中空空间通过一个共同的歧管与导管吸引管的连接连接,并且另外的单向阀设置在每个中空空间的入口处进入歧管,当中空空间中的压力为 大于周围压力。