Special injector for dispensing medicine

The utility model relates to a special injector for medicine dispensing, which comprises an injector barrel 1, a piston 2 and an injection needle 3, the injection needle 3 comprises a needle tip 4, a needle stem 5 and a pintle 6, and the special injector is characterized in that an air inlet channel 7 and a liquid inlet channel 8 are arranged in the injection needle 3, and the air inlet channel 7 and the liquid inlet channel 8 are separated from each other. Liquid medicine is sucked in one step, so that repeated puncture of a bottle plug is reduced, the possibility of pollution of an injection needle is reduced, liquid medicine waste is avoided, and the risk that medical staff are exposed is reduced. 本实用新型涉及一种配药专用注射器，包括注射器筒1、活塞2、注射针3，所述注射针3包括针尖4、针梗5、针栓6，其特征在于，所述注射针3内部设置有进气通道7和进液通道8，所述进气通道7和进液通道8相互隔开，本发明的有益效果在于，在抽吸药液时做到一步到位，以减少瓶塞反复穿刺，减少注射针的污染可能性，避免药液浪费以及降低医护人员暴露的风险。