Research of a Needle-free Injection System Powered by Voice Coil Motor

We designed a needle-free injection system powered by voice coil motor.And the injection pressure of the nozzle's exit was measured.Results show that the needle-free injection system generated enough injection pressure to piece into skin.The system has features such as simple structure,controllable driving force,and overcomes the disadvantages of the common spring-type or compressed gas-type needle-free injection system.