| 摘要 |
The present invention relates to a skin treatment device using a needle, comprising: a needle frame having a needle that penetrates the interior thereof, the front-end exit of the needle protruding towards the front side thereof, the rear-end entrance of the needle being open on the outside of the rear surface of the needle frame, and a stepped delimitation wall being provided on the outside of the rear surface of the needle frame in a closed type such that the rear-end entrance of the needle is positioned inside the delimitation wall; a needle cover having a space portion formed on the rear side thereof towards the interior thereof, a needle guide opening being formed on the front surface of the needle cover so as to communication with the space portion, the needle penetrating the needle guide opening, and a fitting opening formed on the bottom surface of the needle cover; a contact PCB, to which power is supplied from a power supply device, a contact hole being formed through the front surface of the contact PCB such that the needle can penetrate the same, the contact PCB applying a positive or negative electrode to the needle, which penetrates the contact hole, according to supply of power; and a needle hub having a fitting portion formed on the front side thereof towards the interior thereof, an injection portion being formed on the outside of the rear surface thereof so as to connect with a syringe, a passage being provided on the inside of the rear surface thereof so as to be fitted into the delimitation wall of the needle frame, which comes to be positioned inside the fitting portion, while communicating with the injection portion, and a part of the front side of the needle hub being fitted and coupled to the space portion of the needle cover while the contact PCB and the needle frame are successively contained in the fitting portion. |
