Systems and components for regulating fluid infusion to a patient

A cartridge for a fluid delivery system, comprising:

• a housing comprising a top and a bottom, and a first side extending between the top and bottom, wherein the housing is configured to retain a portion of a tubing through which a medication can flow from a medication source to a patient, and wherein the tubing enters the cartridge at the top, extends through the cartridge from the top to the first side to the bottom to form a C-shape, and wherein the tubing exits the cartridge at the bottom;
• a valve configured to compress the tubing and prevent fluid flow in the tubing when the valve is in a first position;
• and
• an actuator mechanically coupled to the valve, such that when a force is applied to the actuator, the valve is moved to a second position that allows fluid to flow through the tubing;
• and
• wherein the valve is biased in the first position.

A fluid delivery system, comprising:

• a cartridge comprising:
• a cartridge housing comprising a top and a bottom, and a first side extending between the top and bottom, wherein the cartridge housing is configured to retain a portion of a tubing through which a medication can flow from a medication source to a patient, and wherein the tubing enters the cartridge at the top, extends through the cartridge from the top to the first side to the bottom to form a C-shape, and wherein the tubing exits the cartridge at the bottom;
• a valve configured to compress the tubing and prevent fluid flow in the tubing when the valve is in a first position;
• and
• an actuator mechanically coupled to the valve, such that when a force is applied to the actuator, the valve is moved to a second position that allows fluid to flow through the tubing;
• and
• wherein the valve is biased in the first position;
• an infusion pump having a housing with a first opening and a hollow interior portion that is configured to receive the cartridge;
• a pump unit disposed within the housing and comprising a motor mechanically coupled with a crank shaft having an axis, wherein the crank shaft further comprises a set of sheaves disposed on or connected to the crank shaft, and wherein each of the sheaves has a projection extending from a first side, wherein a center of the projection is disposed off of the axis;
• wherein the pump unit further comprises a set of pistons and a set of tie rods, wherein each of the tie rods is coupled to one of the sheaves via the projection, such that the tie rod can move with respect to the sheave, and wherein each of the pistons is coupled to one of the tie rods, such that the tie rod can move with respect to the piston, wherein each piston is coupled to one of the sheaves via one of the tie rods;
• and
• wherein when the cartridge is disposed within the hollow interior portion, the pistons are configured to compress different portions of the tubing of the cartridge over time as the crank shaft rotates causing movement of the sheaves, the tie rods, and the pistons.