Patent ID: 9649440
Date: 2017-05-16
CPC Classifications: A61M

Claim:
1. A syringe device for skin treatment, comprising: a syringe for injecting a drug into a skin through a needle at an end; a syringe seat connected with a cylinder of the syringe receiving the drug therein to allow a reciprocation of the cylinder within a limited range according to a direction of injecting the drug; an injector mounted on one side of the syringe seat to be rotated by a driving force to move in association with movement of the syringe seat to move a rod of the cylinder toward the needle; and a controller mounted on one side of the syringe seat and the injector to operate the injector when the needle is in contact with the skin and the syringe seat is moved to one end within a limited range, and stop the injector when the needle is apart from the skin and the syringe seat is moved to opposite end within the limited range, wherein the syringe seat is moved forward by a distance that the cylinder moves forward the needle, wherein the syringe seat comprises a mount on which the cylinder of the syringe is fixed, and a guide rail engaged with the mount at a front portion, the mount configured to receive a front end of the guide rail, and the guide rail comprises a guide groove of a predetermined length formed on a front portion, the guide groove being depressed from a top surface of the guide rail, and the mount is moveable forward and backward by a distance corresponding to the length of the guiding groove, wherein the injector comprises a driving force member operated or stopped according to the controller, to transmit a driving force to the rod, and the driving force member comprises a driving motor mounted inside the casing to rotate forward and backward, wherein, when the needle is distanced apart from the skin, the driving motor stops, and the mount and the cylinder fixed thereto together move forward along the guide groove, relieving an internal pressure of the cylinder.