Systems and Components for Regulating Fluid Infusion to a Patient
AssigneePerceptive Medical Inc.
InventorsDouglas Patton, Joseph Rinehart, Morgan McKeown
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Abstract
Various fluid delivery systems are described comprising an infusion pump having a housing with a first opening and a hollow interior portion that is configured to receive a cartridge having a tubing. A pump unit can be disposed within the housing. The pump unit comprises a motor mechanically coupled with a crank shaft or eccentric cam that is configured to move a set of pistons or other objects to thereby compress one or more portions of the tubing over time as the crank shaft or eccentric cam rotates.
Claims28
A fluid delivery system, comprising:
- an infusion pump having a housing with a first opening and a hollow interior portion that is configured to receive a cartridge having a tubing;
- a pump unit disposed within the housing and comprising a motor mechanically coupled with a crank shaft having a set of sheaves disposed on or connected to the crank shaft;
- wherein the pump unit further comprises a set of pistons and a set of tie rods, and wherein each of the pistons is coupled to the crank shaft by one of the tie rods, and wherein each of the tie rods are connected to one of the sheaves;
- 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.
A cartridge for a fluid delivery system, comprising:
- a housing configured to retain a portion of a tubing through which a medication can flow from a medication source to a patient;
- 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 the actuator is pressed, 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 configured to retain a portion of a tubing through which a medication can flow from a medication source to a patient;
- 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 the actuator is pressed, 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 a set of sheaves disposed on or connected to the crank shaft;
- wherein the pump unit further comprises a set of pistons and a set of tie rods, and wherein each of the pistons is coupled to the crank shaft by one of the tie rods, and wherein each of the tie rods are connected to one of the sheaves;
- 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.
Dependencies are inferred from the claim text.