painless machwigi is initiated. Mouton machwigi machwigi body of the present invention is that the anesthetic liquid ampoules case coupled therein ; Ampoule insertion is provided inside the case to enable relative movement in the body to enable machwigi , ampoules case anesthesia to provide a biasing force to eject the liquid anesthetic during insertion into the pressurized liquid delivery portion ; A power supply unit which provides the necessary power for the relative movement of the body is connected to the anesthesia machwigi solution discharge pressure machwigi body portion ; And allow the anesthetic solution discharge pressure wealth and power connection delivers power to provide a liquid anesthetic or anesthetic solution discharge pressure discharge pressure section and turn off the power section provides anesthesia liquid discharge unit are connected by the free movement pressing portion provided on the power supply unit which includes a power connection and release unit . ; 展开▼