Abstract: An apparatus for introducing one or more branch fluid lines into IV tubing is disclosed. The apparatus including a pair of first and second fluidic blocks having a pair of contact surfaces that may be arranged to respectively engage each other in sealing contact. At least one cutting member is operatively moveable through, or connected, to the other block. In a two cutting member embodiment, a conduit extends between two cutting members and has opposite open ends in communication with an outer side of the associated cutting member. As the second block contact surface is moved towards the first block contact surface, the cutting members cut a portion of the IV tubing extending between the grooves. As cutting occurs, the cut end of the tubing sealingly engages with an associated open end of the conduit to thereby provide for uninterrupted fluid communication through the IV tubing. facilitate connection of IV extension lines by simply connecting the extension line to the conduit through the fluid port.