Patent ID: 8579859

Claim:
A fluid delivery system comprising: a collapsible container including a bio-compatible fluid, a flow path leading from the container to a patient, a pressurizing assembly surrounding all or a portion of the container, a pressurization assembly, where the pressurization assembly pressurizes the pressurizing assembly in a controlled manner resulting in a force exerted on the container and a fluid flow rate from the container through the flow path to the patient and where the pressurization assembly depressurizes the pressurizing assembly in either a rapid manner to rapidly reduce the force on the container and the fluid flow rate from the container or to reduce the force on the container and the fluid flow rate from the container in a controlled manner, and a weighing assembly, where the weighing assembly weighs the container and the pressurizing assembly on an intermittent basis, periodic basis, semi-continuous basis, continuous basis or any combination of intermittent, periodic, semi-continuous, or continuous basis to measure and/or monitor a flow rate of fluid from the container and through the flow path to the patient.