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    • 2. 发明申请
    • BUBBLE REMOVING METHOD FOR CENTRIFUGAL PUMPS
    • 用于离心泵的泡沫去除方法
    • WO1995004558A1
    • 1995-02-16
    • PCT/JP1994001298
    • 1994-08-05
    • SENKO MEDICAL INSTRUMENT MFG. CO., LTD.NIKKISO CO., LTD.KUWANA, KatsuyukiISHII, ShuichiAIZAWA, TakeshiITO, KazuyukiMATSUURA, Motonori
    • SENKO MEDICAL INSTRUMENT MFG. CO., LTD.NIKKISO CO., LTD.
    • A61M01/10
    • A61M1/3629A61M1/1006A61M1/101A61M1/1036
    • A blood delivery port (18) is inclined upward so that a perpendicular line (X) passing the center (O &cir& _) of a centrifugal pump body (12) is positioned between two straight lines ( alpha , beta ) which connect together two circumferential joint points (A, B) in a joint portion between the blood delivery port (18) and a centrifugal chamber (15) and the centre (O &cir& _), and the centrifugal pump body (12) is supported on a driving unit (13) with a blood take-in port (17) inclined upward at an angle larger than that between an inner circumferential surface of the centrifugal chamber (15) and the axis thereof. After the centrifugal chamber has been filled with a liquid, the driving of a rotary body is done in a low-speed mode, a stopping mode and a high-speed mode in the mentioned order. According to the present invention, the stagnation of bubbles in the centrifugal chamber (15) in the centrifugal pump body (12) at the time of starting the circulation of blood to a circuit such as a pump-oxygenator can be prevented reliably.
    • 血液输送口(18)向上倾斜,使得通过离心泵体(12)的中心(O&Cir)的垂直线(X)位于两条直线(α,β)之间,两条直线(α,β) 在血液输送口(18)和离心室(15)与中心(O&Cir)之间的接合部分和离心泵体(12)中的接合点(A,B)被支撑在驱动单元 13),其具有以比离心室(15)的内周表面和其轴线之间大的角度向上倾斜的血液入口(17)。 在离心室已经充满液体之后,旋转体的驱动以上述顺序的低速模式,停止模式和高速模式进行。 根据本发明,可以可靠地防止在开始血液循环到诸如泵 - 氧合器之类的电路时离心泵体(12)中的离心室(15)中的气泡停滞。