One kind exempting from needle-type injection connector,Include: a top shell,One pedestal and a soft piston part,The soft piston part along one fluid channel sequentially include a piston nose portion,One piston main body,And a piston Hou end,The closely sealed what syringe running-on of essence is in the piston nose portion and has a joint-cutting,The piston Hou end system sets in one of what pedestal embedded grooves,The width in the not small what piston nose portion, the width system of the piston main body and between its outer surface and the inner wall of the accommodating space have a deformation space,When syringe running-on insertion of the syringe from the top shell,The piston main body system be squeezed and towards the deformation space for deformation,The joint-cutting opens and the fluid channel is made to be connected to one of the syringe running-on and the pedestal through-hole.一種免針式注射連接器，包含：一頂殼、一底座及一軟性活塞件，該軟性活塞件沿其一流體通道而依序包括有一活塞前端部、一活塞主體、及一活塞後端部，該活塞前端部為實質密合於該注射器套口且具有一切縫，該活塞後端部係嵌置於該底座之一嵌合溝中，該活塞主體之寬度係不小於該活塞前端部之寬度且其外表面與該容置空間的內壁面之間具有一變形空間，當一注射器自該頂殼的一注射器套口插入時，該活塞主體係受擠壓而朝著該變形空間為變形，該切縫張開而使該流體通道為連通該注射器套口與該底座之一通孔。
