The utility model relates to a blood dialyzer with a tenon type sealing cover,The utility model comprises a housingA plurality of hollow fiber wires and a two-seal cover,It is characterized by opening at both ends of the shell,It is hollow cylinder,A holding space is formed to hold the hollow fiber；The two ends of the shell form openings respectively,Ring ribs are formed at the end edges of both ends of the shell；The sealing cover is respectively arranged at both ends of the shell and is sleeved with the shell to close the openings,And the structure of the sealing cover is substantially the same,The utility model has a blood transfusion part and a set of joint parts；The blood transfusion department is used to transport blood into and out of the shell；The socket part is further extended to form a plurality of mortise pieces which are fixedly connected with the annular ribs by mortise joint,Fasten the sealing covers to seal the openings.It is beneficial to improve the quality and manufacturing efficiency of hemodialyzer, eliminate the problem of reuse and facilitate the automatic production.一種具有卡榫式密封蓋之血液透析器，包含一殼體、複數中空纖維絲以及二密封蓋，特徵在於：殼體兩端開放，呈中空筒狀，並形成容置空間以容置中空纖維絲；殼體兩端分別形成開口，殼體兩端之端緣處分別形成環形凸肋；密封蓋係分別設置於殼體兩端並與殼體套接以封閉各開口，且密封蓋之構形實質相同，具有一輸血部與一套接部；其中輸血部用以輸送血液進出殼體；套接部進一步延伸形成複數卡榫件與各環形凸肋以卡榫接合方式緊固連接，使各密封蓋緊固密封各開口。有利於提升血液透析器之品質、製造效能，並免除重複使用問題且利於自動化生產。
