Linkage multi-stage locking sterile connection device, docking device, system and connection method

Abstract

The application discloses a connecting device, a docking device, a system and a connecting method, and relates to the technical field of sterile connectors. The technical scheme points of the application include a main body, a connecting rod, a locking component, an isolation film and a sealing ring; a pipe head is arranged on the main body, and the sealing ring is in communication with the pipe head in the main body; the isolation film is arranged on the side, away from the pipe head, of the sealing ring; the connecting rod is hingedly connected to the main body; a butt wall is arranged on the main body, and the connecting rod and the butt wall are symmetrically arranged on the two sides of the pipe head axis; the locking component is connected to the connecting rod, and the locking component is used for applying different sizes of pressure to the butt wall, and part or all of the pressure is used for converting into axial extrusion force on the sealing ring. In the application, the construction of the sterile fluid passage is realized by applying different sizes of axial extrusion force on the sealing ring, the possibility of displacement of the two sealing rings when the isolation film is pulled away is effectively reduced, and the reliability of the sterile fluid passage is ensured.