Variable flow control device, system and method

A flow rate device configured for connection in a flow path between a non-electric infusion pump and a patient, the flow rate control device comprising:

• an inlet handle;
• an outlet handle, wherein said inlet handle is rotatable relative to said outlet handle;
• a fluid path disposed between said inlet handle and said outlet handle, said fluid path having at least one manually adjustable dimension;
• wherein the at least one manually adjustable dimension includes a width of the fluid path;
• and
• said inlet handle and said outlet handle composed of materials that can withstand pressures of from 5 PSI-40 PSI;
• wherein said flow rate control device further comprises:
• an inlet port in said inlet handle;
• a groove in said outlet handle, wherein said groove includes a diameter that varies along a length of the groove;
• an outlet port in said outlet handle fluidly coupled to said groove;
• a seal between said inlet handle and said outlet handle, said seal being fixedly coupled to said inlet handle, wherein said inlet handle and said seal are rotatable relative to said outlet handle, wherein said seal includes at least one orifice for fluid flow therethrough, wherein said at least one orifice is selectively alignable with said groove along the length of the groove, whereby a fluid is capable of flowing in sequence through said inlet port, said at least one orifice, said groove, and then through said outlet port.