Mixing device for cell printing composition

A mixing device of cell printing composition comprising:

• a first syringe comprising a first container for containing first liquid, a first moving element discharging the first liquid contained in the first container;
• a second syringe comprising a second container for containing second liquid, a second moving element discharging the second liquid contained in the second container;
• a mixing container comprising a rotating mixing unit, the mixing container receiving the discharged first liquid and the discharged second liquid;
• a power transmission unit for driving the first moving element, the second moving element and the mixing unit;
• a first threaded guide where the first moving element is movably connected;
• a second threaded guide where the second moving element is movably connected;
• and
• a rod for rotating the mixing unit;
• wherein the first moving element moves by the rotation of the first threaded guide;
• the second moving element moves by the rotation of the second threaded guide;
• and the first threaded guide, the second threaded guide, and the rod are rotated by the power transmission unit.