The present invention provides an injection device. A vibration is generated in the injection device, and an injection liquid is agitated by an agitation device, so cells are diluted therein and fed therewith at a low concentration. At the same time, the generated vibration is blocked from being transferred to a syringe device, so one who receives the fed injection liquid may be prevented from being damaged. Also, the injection liquid may be fed at a constant speed or at an adjusted speed. To this end, the injection device comprises a filter unit installed in a guide tube, and the filter unit comprises a hollow housing in which a filter is installed, a water level adjusting port formed in a wall of the housing to be disposed in an upper side than the filter, and a water level adjusting cover coupled with the water level adjusting port to be opened and closed.COPYRIGHT KIPO 2016본 발명은 주입장치에 진동을 발생시켜 교반장치에 의해 주입액을 교반함으로써 세포를 희석해서 낮은 농도로 투여하는 동시에 발생된 진동이 주사 장치까지 전달되는 것을 차단하여 투여 받는 자가 피해를 받지 않도록 하고, 주입액을 일정한 속도 또는 속도를 조절하여 투여할 수 있도록, 가이드튜브에 필터장치가 설치되고, 필터장치는 필터가 설치되는 중공의 하우징과 하우징 벽체에 상기 필터보다 상류측에 형성되어 있는 수위조절포트와 수위조절포트와 결합하여 개폐하는 수위조절덮개를 포함하는 것을 특징으로 하는 주입장치를 제공한다.
