The utility model relates to a novel-structure injection end opening with a built-in filter and with the advantages that the built-in filter is adopted, glass fragments mixed in injection liquid can be filtered away, and the safety is higher. The injection end opening with the built-in filter is characterized in that the injection end opening with the built-in filter can be connected with a medical multi-path connector with a plurality of sub branch tubes to be used, and comprises a casing 110, a filter 120 and a valve 130, a flow-in opening 102 for liquid medicine to flow in is formed in the front end part of the casing, and a discharging opening 103 communicated with the flow-in opening 102 is formed in a base end part of the casing, so that a flow path formed by the flow-in opening 102 and the discharging opening 103 is formed at the inside, and in addition, the base end part of the casing and the multi-path connector are detachably combined by screws； the filter 120 is arranged inside the casing 110 in a way capable of transversely passing through the flow path, and the valve 130 used for opening and closing the flow path is arranged inside the casing 110.본 고안은 필터가 내장되어 주사액에 혼입된 유리파편을 걸러낼 수 있어서 안전성이 우수한 새로운 구성의 필터내장형 인젝션 포트에 대한 것이다.본 고안에 따르면, 복수개의 분기관을 갖는 의료용 멀티-웨이 커넥터에 연결하여 사용하는 것으로서, 선단부에는 약액이 유입되는 유입구(102)가 형성되고 기단부에는 상기 유입구(102)와 연통되는 배출구(103)가 형성되어, 내부에는 상기 유입구(102)와 배출구(103)에 의한 유로가 구비되며, 기단부가 상기 멀티-웨이 커넥터에 착탈가능하게 나사결합되는 하우징(110)； 상기 유로를 가로지르도록 상기 하우징(110) 내부에 설치되는 필터(120)； 및 상기 하우징(110)에 내장되어 상기 유로를 개폐시키는 밸브(130)；를 포함하여 이루어진 것을 특징으로 필터내장형 인젝션 포트가 제공된다.
