[Development of a novel liquid injection system].
A liquid jet injector employs compressed gas or spring to produce a high-velocity stream to deliver liquid drug into human body through skin. There are many clinical jet injection products available, none of which is domestic. A new liquid jet injector is designed based on a comprehensive analysis of the current products. The injector consists of an ejector, trigger and a re-positioning mechanism. The jets characteristics of sample injector are tested, and the results show that the maximum exit pressure is above 15 MPa, a threshold value for penetrating into the skin.
Chen
Kai
K
School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou Zhejiang, China.
Lv
Yong-Gui
YG
D004867:Equipment Design; D006801:Humans; D007271:Injections, Intradermal / Q000295:instrumentation* / Q000379:methods; D007277:Injections, Jet / Q000295:instrumentation* / Q000379:methods