Stopcock valve

A medical stopcock comprising:

• a medical stopcock main body including:
• a chamber part having an inner surface defining an open space part, the inner surface being formed spherically, the chamber part defining a guide hole therein extending from the inner surface to an outside, the guide hole including a horizontal guide hole extending along a horizontal axis and a vertical guide hole extending from an approximate center of the horizontal guide hole along a vertical axis;
• and
• plural branch-tubes extending outwardly from the chamber part, the plural branch-tubes including a pair of horizontal branch-tubes extending in opposite directions along the horizontal axis and a vertical branch-tube extending along the vertical axis;
• and
• a valve main body defining an approximately spherical shape installed in the chamber part;
• and
• a rod-shaped operating part passing through the guide hole, the rod-shaped operating part being configured to move along the horizontal guide hole to selectively control fluid communication between the pair of horizontal branch-tubes, the horizontal guide hole configured to permit movement of the rod-shaped operating part therealong in a horizontal direction and to substantially prevent movement of the rod-shaped operating part therealong in a vertical direction, and the rod-shaped operating part being configured to move along the vertical guide hole to selectively control fluid communication between the vertical branch-tube and the horizontal branch-tubes, the vertical guide hole configured to permit movement of the rod-shaped operating part therealong in a vertical direction and to substantially prevent movement of the rod-shaped operating part therealong in a horizontal direction.