US Patent 11185631 Accurate flow rate adjustment for IV pump

A device and method for measuring an IV pump infusion system flow comprises a fluid source configured to store medicinal fluid and a weight sensing mechanism comprising a weight sensor and microprocessor. The weight sensing mechanism is configured to detect the weight of the fluid source as the medicinal fluid leaves the fluid source. The device in the infusion system administers medicinal fluid using a set flow rate for the IV pump input into the control unit prior to infusion, measures the change in mass of the fluid source containing medicinal fluid as fluid exits the source, calculates the flow rate based on the change in mass over time, compares the calculations with a set flow rate, and adjusts the IV pump and flow rate based on the compared deviations, for improved delivery accuracy. This configuration may also prevent patient harm and medicine waste.