| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an open and close device for medical tube that is capable of opening and shutting the passage steadily by clipping the passage from the outer face in order to control the flow of the liquid formulation for the medical tube in the passage of which the liquid formulation flows. <P>SOLUTION: Even if a force is impressed for expanding the tube channel of the shadowing agent injection tube 3000 in the upstream side closed region, the movable member 505 can move like a seesaw at the upstream side and the downstream side centered on the fulcrum axis 505a, thereby the downstream side of the movable member 505 moves in the direction of closing the tube channel. As a result, even if a large pressure is impressed on the shadowing agent injection tube 3000 from a syringe, it is possible to close the tube channel steadily in the downstream side closed region. <P>COPYRIGHT: (C)2004,JPO |
