Apparatus for skin treating including drug reservoir

A medical skin treatment apparatus comprising:

• a main body including a controller controlling an operation of the medical skin treatment apparatus and a power supply for supplying power to the medical skin treatment apparatus;
• a drug reservoir storing a drug to be injected into the skin of a patient;
• a hand piece receiving power from the power supply of the main body, controlled by the controller, injecting the drug into the skin of the patient, and improving the skin;
• and
• a drug hose coupling the drug reservoir and the hand piece to each other and conveying the drug,
• wherein the drug reservoir includes a drug container storing the drug and a stopper part inserted into an opening of the drug container to prevent leakage of the drug and having a duct through which the drug hose passes formed therein,
• the stopper part includes an outer body having at least a portion coming into contact with an inner circumferential surface of the opening of the drug container and an inner body,
• the outer body includes an outer wall and a stopper part closing surface having a ring shape and integrally formed with the outer wall,
• the outer wall has a cylindrical shape that has an open upper side and vertically extends,
• the stopper part closing surface includes a lower closing surface and a catching part,
• the lower closing surface is formed in a ring shape that is perpendicular to the outer wall, and an outer circumferential surface of the lower closing surface is coupled to a lower end of the outer wall,
• the catching part extends in a radial direction of the lower closing surface and is formed to be larger than a radius of the outer wall to prevent the outer body from being completely inserted into the drug container,
• the inner body includes an inner wall, an upper closing surface that are integrally formed with the inner wall, and the duct,
• the inner wall has a cylindrical shape that is coupled to the lower closing surface while perpendicular thereto, has an open lower side, and vertically extends, and a lower end of the inner wall is coupled to an inner circumferential surface of the lower closing surface,
• the upper closing surface is formed in a ring shape that is perpendicular to the inner wall, and an outer circumferential surface of the upper closing surface is coupled to an upper end of the inner wall,
• the duct is formed to protrude downward while perpendicular to the upper closing surface and discharge the drug inside the drug container to the outside, and
• an upper end of the duct is coupled to an inner circumferential surface of the upper closing surface.