Screw control medical fluid flow manifolds

A fluid flow set, comprising:

• a fluid inlet tube;
• a fluid outlet tube;
• a drug delivery tube;
• and
• a fluid flow manifold assembly, the fluid flow manifold assembly comprising:
• a body having a main fluid channel and a reinforcing plate;
• an inlet connector disposed on a first end of the main fluid channel and coupled to the fluid inlet tube;
• an outlet connector disposed on a second end of the main fluid channel and coupled to the fluid outlet tube;
• a port connector coupled to the main fluid channel and coupled to the drug delivery tube;
• and
• a flow control assembly coupled to the main fluid channel opposing the port connector, the flow control assembly comprising a plunger, a seal member, a cap thread and a knob,
• wherein the flow control assembly is configured to shut off fluid flow into the main fluid channel from the drug delivery tube with the plunger disposed in a first position, to allow a maximum fluid flow into the main fluid channel from the drug delivery tube with the plunger disposed in a second position, and to allow incremental levels of fluid flow into the main fluid channel from the drug delivery tube with the plunger disposed in varying positions between the first and second positions, and
• wherein the plunger position is based on rotation of the knob in one of a clockwise and a counterclockwise direction.