Patent ID: 9162028
Filing Date: 2015-10-20
Classification: A61M

Abstract:
1. A syringe for treating facial wrinkles having a syringe cylinder, a needle body detachably mounted at the front end portion of the syringe cylinder and having a syringe needle disposed thereon, and a piston rod disposed inside the syringe cylinder for operating a piston, the syringe comprising: the syringe cylinder formed of a substantially thin tube having an inside diameter in a range of 2.0 mm to 7.0 mm and containing a predetermined quantity of liquid; and an inflow check valve disposed at one side of the front end portion of the syringe cylinder connected to a gas supply for supplying a predetermined quantity of gas to the interior of the syringe cylinder, wherein during movement of the piston through the syringe cylinder, the syringe is configured to inject the predetermined quantity of gas supplied from the gas supply through the inflow check valve into the dermis of the skin before the predetermined quantity of liquid filled into the syringe cylinder is injected into the dermis of the skin, and wherein the syringe is configured so that movement of the piston through the syringe cylinder is repeatedly carried out.