Medical cleaning valve

A method, the method comprising:

• delivering air from an air inlet in a valve cylinder to an air outlet in the valve cylinder while a valve stem in the valve cylinder is in a first position relative to the valve cylinder;
• rotating the valve stem in the valve cylinder to a second position relative to the valve cylinder in which a first opening of the valve stem is aligned with a water inlet of the valve cylinder and a second opening of the valve stem is aligned with the air outlet;
• and
• delivering water from the water inlet to the air outlet via the first opening and the second opening while the valve stem is in the second position.

A medical device, comprising:

• a valve stem having a proximal end, a distal end, and a radial outer surface, the valve stem comprising:
• a first opening;
• a second opening;
• a lumen in fluid communication with the first opening and the second opening;
• and
• one or more external threads,
• wherein the second opening faces radially outward through the radial outer surface, and
• wherein the first opening is a distal opening axially aligned with a longitudinal axis of the lumen and the valve stem further comprises a third opening facing radially outward through the radial outer surface at a location between the first opening and the second opening.