| 摘要 |
PROBLEM TO BE SOLVED: To infuse and discharge with a single valve without requiring insertion of a straw which is a cause of a leakage while taking advantage of a check valve. SOLUTION: The infusion/discharge valve comprises an outer tube, an inner tube, and a check valve provided on the tip of the outer tube sticking into a bag. A discharge opening is provided between a mounted portion of the check valve and a mounted portion of the outer tube whereby the inside and the outside of the bag are made to communicate with an outer tube opening and an inner tube opening for discharging. Then, a handle on an upper part of the inner tube is rotated to cause the outer tube opening and the inner tube opening to shift in position for closing. |
