This creation injection needle tube structural improvement,It is to include: a syringe,Its internal accommodating space that there are a both ends to be connected to outside,The opening system of the syringe one end extends forward is apered to an interconnecting piece,The interconnecting piece system, which provides, combines a syringe needle； And a body of rod,One end is equipped with closely sealed element,A flange is extended in the top surface of the other end of the body of rod,And the side of the flange is equipped with a push rod parallel with the body of rod,The body of rod is plugged by one end of the closely sealed element in the accommodating space of the what syringe,And the outside of the push rod system position what syringe,User singlehanded can push push rod,To be injected or be extracted.本創作注射針筒結構改良，其係包括有：一針筒，其內部具有一兩端與外部連通之容置空間，該針筒一端之開口係朝前延伸漸縮成一連接部，該連接部係提供結合一針頭；以及一桿體，其一端設有密合元件，該桿體之另一端之頂面延伸出一凸緣，且該凸緣之一側設有一與該桿體平行之推桿，該桿體係由該密合元件之一端插設於該針筒之容置空間內，而該推桿係位於該針筒之外側，使用者可單手推動推桿，以進行注射或抽取。
