Syringe for dermal regeneration

A syringe for dermis regeneration, the syringe comprising:

• an injection unit having a first space therein and being open at a rear end portion thereof, the first space being filled with a liquid or a gas and communicating with the outside through the open rear end portion;
• a needle combined with a front end portion of the injection unit and having a space therein, the space of the needle communicating with the first space;
• a liquid supply unit having a first end portion removably combined with the rear end portion of the injection unit, having a second end portion through which a piston moves backward or forward, and having a space therein, the space of the liquid supply unit being filled with the liquid and communicating with the first space, and the piston being inserted into the liquid supply unit through the second end portion of the liquid supply unit;
• a gas injection port passing through a sidewall of the injection unit and communicating with the first space to allow the first space to be filled with the gas introduced through the gas injection port;
• and
• a cylinder having a double-tube structure that comprises an inner tube and an outer tube that are connected to a rear end portion of the injection unit, the inner tube having a second space therein and a third space being formed between the inner tube and the outer tube,
• wherein the liquid supply unit communicating with the first space is positioned within the second space, and the third space communicates with the first space through the gas injection port and is filled with the gas.