Abstract: Manifolds assembly having a plastic body with intersect flow passages and valve members for controlling communication between the passageways. Stops limit the movement of the valve members between predetermined positions, and the valve members can be removed from the body and reinstalled in reversed position to provide fixed communication between certain of the passageways. Externally threaded nipples are provided for connecting the assembly to external fixtures, and resilient sleeves are inserted between the valve members and the body to form fluid tight seals.

Abstract: Manifold assembly having a plastic body with intersect flow passages and valve members for controlling communication between the passageways. Stops limit the movement of the valve members between predetermined positions, and the valve members can be removed from the body and reinstalled in reversed position to provide fixed communication between certain of the passageways. Externally threaded nipples are provided for connecting the assembly to external fixtures, and resilient sleeves are inserted between the valve members and the body to form fluid tight seals.

Abstract: Removable connector for locking Luer fittings together, comprising a cylindrical sleeve having internal threads toward the ends thereof for engaging external threads on male and female Luer fittings. In one particularly preferred embodiment, the internal thread for receiving the female fitting is substantially coarser than the internal thread for receiving the male fitting, and the thread on the female fitting is an interrupted thread. The connector sleeve can be mounted on the male fitting, and the female fitting can then be quickly connected or disconnected by a small turn of the female fitting.