| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve for medical machinery made expansible and simply controllable the passage of a liquid through at least one flexible tube connected to the same or a separated medical instrument so as to supply the same liquid or to alternately supply different liquids. SOLUTION: The valve 11 for cutting off the flow of the liquid though at least one flexible tube 3 equipped with a valve housing 5 having a longitudinal hole 6 and at least one radial hole 13 extending from the longitudinal hole 6 and permitting a part of the flexible tube to pierce in the direction crossing the longitudinal hole 6 and the radial hole 13 at a right angle, the cam shaft 7 supported within the longitudinal hole 6 of the valve housing and having at least one control cam and the press member 10 guided through the radial hole 13 by the action of the control cam to cut off the flow of the liquid through the flexible tube 3. The control cam is formed from the cavity 16 formed to the circular surface of the cam shaft 7 and the arcuate part contacted therewith in a circumferential direction. When the radial position of the press member 10 and that of the cavity 16 coincide with each other, the press member 10 is retracted to a non-operative position and, when the press member comes into contact with the arcuate part, the press member is protruded to the non-operative position to press the corresponding part of the flexible tube. |
