The present invention provides an injection device wherein cells in an injection solution are administered at a low concentration by generating vibration in the injection device and stirring the injection solution by a stirring device to prepare a diluted solution of the cells, and the generated vibration is prevented from being transmitted up to a syringe device, so as not to hurt a person to which the injection solution is administered. The injection device comprises: a container in which an injection solution is stored such that the injection solution can be administered at a constant rate or at a controlled rate an inflow port which is formed in the container and through which an injection solution can be supplied into the container a stirring means installed in the container so as to stir an injection solution in the container when vibration is generated in the container an injection unit formed in a lower portion of the container so as to inject an injection solution in the container through a guide tube and a vibration damping device installed in the injection unit so as to damp vibration generated in the container, wherein the lower portion of the container includes an inclined section for guiding the injection solution toward an outlet part.La présente invention concerne un dispositif dinjection dans lequel des cellules dans une solution dinjection sont administrées à une faible concentration en générant une vibration dans le dispositif dinjection et en agitant la solution dinjection par un dispositif dagitation pour préparer une solution diluée des cellules, et la transmission de la vibration générée est empêchée vers un dispositif de seringue, de façon à ne pas blesser une personne à laquelle est administrée la solution dinjection. Le dispositif dinjection comprend : un récipient dans lequel une solution dinjection est stockée de telle sorte que la solution dinjection puisse être administrée à une vitesse constante ou à une vitesse contrôlée un orifice d
