This design provides an improved structure of the feeding device,The feeding device structure comprises a needle barrel unit with a holding space,And a suction unit arranged in the holding space,The needle cylinder unit is provided with an input port on one side of the holding space,An output tube body is convex on the other side of the holding space,It is characterized in that: a blocking unit is set in the content of the holding space,The blocking unit includes an ontology,Two sides of the body parallel to its axis direction are convex with a blocking piece,And one of the blocking parts is arranged on the output pipe body,In this way,The blocking device of the blocking unit can not only prevent the air from being doped,At the same time, the blocking part prevents the air between the output tube body and the body from entering the digestive organs of the patient,And effectively prevent the patient's abdominal distension discomfort.本創作提供一種灌食器結構改良，該灌食器結構包含一設有一容置空間之針筒單元，及一滑設於該容置空間之抽吸單元，該針筒單元於該容置空間之一側設有一輸入口，於該容置空間之另一側凸設有一輸出管體，其特徵係在：該容置空間內容設一阻塞單元，該阻塞單元包含有一本體，該本體平行其軸心方向之兩側各凸設有一阻塞件，而其中之一該阻塞件係設於該輸出管體上，藉此，阻塞單元之阻塞件不僅可以防止空氣被摻雜，同時阻塞件更防止輸出管體與本體間的空氣進入病人體內的消化器官，而有效地防止病人的腹脹不適感。
