No-pain injector / needleless injector

A needleless injector,suitable for those who suffer from long-term injections or trypanophobia ,and children.Tear up the patch and put it onto the arm.15 minutes later,whole injection completes without any pain.The injector consists of medical artificial membrane,whose surface contains micro needles.These micro needles are the polymer,containing active medicinal molecules. After inserting into the epidermal cell,the polymer will dissolve in cells and release active medicinal molecules.The remaining polymer molecules do no harm.Made of dissolving micro needle and degradable artificial membrane,it is environmentally-friendly and convenient .