Drip infusion container for infusion device

A drip infusion container for an infusion device comprising:

• an introduction needle which extends in a vertical direction and whose upper end is inserted into an infusion-fluid container in which infusion is stored;
• a transparent container which extends in the vertical direction and receives the infusion through the introduction needle, wherein the transparent container comprises a transparent body;
• and
• a control ball which is located inside the transparent container and provided with a specific gravity lower than that of the infusion, wherein the control ball moves in the vertical direction with a change in a height of a liquid level formed by the infusion,
• wherein the control ball comprises a lower member and an upper member coupled to an upper end of the lower member, wherein a bottom surface of the lower member is configured to come into close contact with a fitting grove on an inner bottom surface of the transparent body, the fitting grove having the same shape as the bottom surface,
• wherein the lower member has a coupling protrusion formed on its upper surface to be inserted into the upper member, and the upper member has a receiving groove formed on its bottom surface into which the coupling protrusion is inserted,
• wherein a depth of the receiving groove is formed to be longer than a height of the coupling protrusion, so that a hollow is formed inside the upper member when the upper member and the lower member are coupled.