Needle-free liquid injection system powered by voice-coil linear actuator

被引：1
|
作者：
Chen K. [1 ]
Yang F. [1 ]
机构：
[1] School of Mechanical Engineering, Hangzhou Dianzi University
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2011年 / 47卷 / 09期
关键词：
Injection pressure; Needle-free injection; Voice-coil actuator;
D O I：
10.3901/JME.2011.09.151
中图分类号：
学科分类号：
摘要：
A needle-free injection system powered by a voice-coil linear actuator is presented in order to overcome drawbacks of the common spring or compressed gas powered injection system. The mechanics of injection process is investigated. A theoretical model is established to evaluate the injection pressure under system conditions (nozzle diameter, ampoule dimension, voice-coil discharging voltage, etc.). An experimental system is set up to measure the injection pressure dynamically. The experimental results agree well with the predicted values given by the theoretical model. In-vitro injections using the current needle-free system are carried out with needle injection as control. Results show that the current magnetic force injection technology can generate enough injection pressure to pierce into skin, and the administration is absorbed in vivo faster than that through needle. The current system features simple structure, two-way operation, and controllable driving force, thus overcoming the disadvantages of traditional needle-free injection systems, and laying the foundation for the product development of novel needle-free injection system. © 2011 Journal of Mechanical Engineering.
引用
收藏
页码：151 / 156
页数：5
相关论文
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