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    • 2. 发明申请
    • DEVICE FOR WITHDRAWING BODY FLUIDS
    • 取出身体液体的装置
    • WO1991018551A1
    • 1991-12-12
    • PCT/AT1991000066
    • 1991-05-21
    • AVL MEDICAL INSTRUMENTS AGSKRABAL, FalkoKLEINHAPPL, ErichLIST, Helmut
    • AVL MEDICAL INSTRUMENTS AG
    • A61B05/14
    • A61B5/155A61B5/15003A61B5/150229G01N35/025G01N35/1079G01N2035/00445
    • A device for withdrawing body fluids with a withdrawal device (1) connected to a hollow needle (6) has a storage system (3) with a plurality of separate sample containers (4) arranged on a mobile holder. The containers are hermetically sealed with a membrane (5) which can be punctured and receive collected fractions of the body fluid at given time-intervals. A device (7) connected to a control device (2) can be positioned above each of the sample containers (4) in succession and can be introduced into the sample container through the membrane (5). The withdrawal device (1) is designed as a double-lumen cannula (18), one lumen (19) being connected through a first connecting line (25) to the hollow needle (6), which can be introduced into the sample containers (4), and the other lumen (20) being connected through a second connecting line (26) to a pump (8'; 21) which can be actuated by the control device (2). The individual unfilled sample containers (4) contain a quantity of gas or mixture of gases whose volume under atmospheric pressure is less than the volume of the body fluid to be withdrawn.
    • 一种用连接到中空针(6)的取出装置(1)取出体液的装置具有一个具有多个分开的样本容器(4)的存储系统(3),该样本容器布置在移动支架上。 容器用膜(5)气密密封,膜(5)可以以给定的时间间隔穿刺并接收体液的收集部分。 连接到控制装置(2)的装置(7)可以连续地定位在每个样本容器(4)上方,并且可以通过膜(5)被引入到样本容器中。 抽出装置(1)被设计为双腔插管(18),一个管腔(19)通过第一连接管线(25)连接到中空针头(6),其可以被引入样品容器 4),另一个管腔(20)通过第二连接管线(26)连接到可由控制装置(2)致动的泵(8'; 21)。 单个未填充的样品容器(4)含有一定量的气体或气体混合物,其体积在大气压下小于要抽出的体液的体积。