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热词
    • 4. 发明授权
    • Endoscope with a gas/liquid switching mechanism
    • 具有气/液切换机构的内窥镜
    • US4489712A
    • 1984-12-25
    • US440579
    • 1982-11-10
    • Yutaka Ohshima
    • Yutaka Ohshima
    • A61B1/00A61B1/12G02B23/24A61B1/06
    • A61B1/12Y10T137/86879
    • An endoscope includes a connector portion attached to a universed cord of the endoscope, a gas feed tube and a liquid feed tube each connected at one end to a liquid feed tank, and an insertion member provided at the other ends of the gas feed tube and the liquid feed tube and capable of being attached to and detached from the connector portion. A movable member is provided at the connector portion and is capable of taking a first position in which a gas feed passage and a liquid feed passage of the endoscope communicate with the gas feed tube and the liquid feed tube, respectively, when the connector portion is connected to the insertion member, and a second position in which the gas feed passage and the liquid feed passage are disconnected from the gas feed tube and the liquid feed tube, respectively, and the liquid feed passage communicates with an air pump, when the insertion member is removed from the connector portion. Accordingly the interior of the liquid feed tank is pressurized by the air pump and a liquid in the tank is fed into the liquid feed passage through the liquid feed tube when the connector portion and the insertion member are connected, and gas is fed from the air pump directly into the liquid feed passage to discharge residual liquid when the insertion member is removed from the connector portion.
    • 内窥镜包括连接到内窥镜的通用电线的连接器部分,气体供给管和液体供给管,其一端分别连接到液体供给箱,以及插入部件,其设置在气体供给管的另一端, 液体供给管并且能够连接到连接器部分并从连接器部分拆下。 可动构件设置在连接器部分处,并且能够采取第一位置,其中当连接器部分是连接器部分时,内窥镜的气体供给通道和液体供给通道分别与供气管和供液管连通 连接到插入构件,以及第二位置,其中气体供给通道和液体供给通道分别与供气管和液体供给管分离,并且液体供给通道与空气泵连通,当插入 构件从连接器部分移除。 因此,液体供给槽的内部被空气泵加压,并且当连接器部分和插入构件连接时,槽中的液体通过液体供给管被供给到液体供给通道中,并且气体从空气供给 当插入构件从连接器部分移除时,泵直接泵入液体供给通道以排出残留液体。