The invention is related to a cartridge adaptor which comprises a first dual-barrel cartridge, a housing, an adaptor and a second dual-barrel cartridge. The first dual-barrel cartridge comprises two openings and is disposed in the housing. The housing comprises a first fastening component. The adaptor has two inlets which opposite to the two inlets. The two inlets are respectively mounted into and communicate with the two openings of the first dual-barrel cartridge. The two outlets communicate with the two inlets. The second dual-barrel cartridge comprises two openings and a second fastening component which is complementary to the first fastening component of the housing. The two openings of the second dual-barrel cartridge communicate with the two outlets of the adaptor. The invention prevents the remaining unmixed component substances from oozing out of the two inlets or the two outlets of the adaptor during the transfer process of the remaining component substances.本發明提供一種藥筒轉接器,包含一第一雙管藥筒、一殼體及一轉接器。該第一雙管藥筒設於該殼體且第一雙管藥筒具兩開口。該殼體包括一第一固定件。該轉接器包括兩注入口及兩輸出口,各注入口可分離地設於該第一雙管藥筒各開口。藥筒轉接器更包含一第二雙管藥筒,其包括兩開口及一第二固定件,該第二固定件與該殼體之第一固定件相對應並可分離地相接,且該第二雙管藥筒各開口與該轉接器各輸出口相連接通。本發明藉由該轉接器各注入口與各輸出口防止殘留之成分物質於轉移時滲出,並由兩固定件可分離地相連接以提升雙管藥筒之間的緊密度。10‧‧‧第一雙管藥筒11‧‧‧腔室20‧‧‧殼體21‧‧‧前固定座211‧‧‧凹部22‧‧‧固定部221‧‧‧側邊222‧‧‧第一固定件30‧‧‧轉接器31‧‧‧第一平面311‧‧‧前表面32‧‧‧注入口33‧‧‧輸出口331‧‧‧前端部332‧‧‧後端部40‧‧‧第二雙管藥筒41‧‧‧腔室42‧‧‧開口43‧‧‧第二固定件
