Provided is an injection device. An injection fluid injected to a person has a low concentration by diluting cells by mixing the injection fluid by generating a vibration in the injection device, and by using a mixing device. Also, the generated vibration is blocked from being delivered to the injection device, and thus the person having the injection is protected from being damaged. In addition, a filter device is installed to a guiding tube of the injection device to inject the injection fluid with a constant speed or with adjusted speed of injection. The filter device includes: a hollow housing which has a filter installed a level adjusting port formed on an upper side of the filter on the wall of the housing and a level adjusting cover which opens and closes by being combined to the level adjusting port.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.
