A kind of cavity body structure of prosthetic blood vessel injection seat,It include: an injection seat ontology,The injection seat ontology includes an injection part and a pedestal,Above the injection part fixed what pedestal,And the what injection seat body interior forms an injecting cavity,The injection part periphery sets an injection surface,A liner base is arranged in the pedestal inner circumferential,The pedestal can be prevented to be schematically shown,The pedestal inner circumferential adjacent bottom sequentially sets a joining hole and a recess,The liner base inner circumferential is equipped with one by extending the deflector hole being arranged in streamlined inside outside adjacent to the joining hole； And a connecting conduit,The connecting conduit fixed what injection seat ontology； Thereby,When injecting fluid enter injecting cavity Hou,It can be flowed into inside the connecting conduit under the mobility status of lower resistance along the deflector hole.一種人工血管注射座之腔體結構，包括：一注射座本體，該注射座本體包含一注射部及一底座，該注射部固設於該底座上方，並於該注射座本體內部形成一注射腔，該注射部外周設一注射面，該底座內周設置一內襯座，可防止該底座被針刺穿，該底座內周鄰近底部依序設一組接孔及一凹口，該內襯座內周鄰近該組接孔設有一由外往內擴展呈流線形設置的導流孔；及一連接導管，該連接導管固設於該注射座本體；藉此，當注射流體進入該注射腔後，可沿著該導流孔在低阻力之流動情況下流入該連接導管內部。
