Controller for the automatic control of an injection device

摘要

The invention concerns an device for injecting a patient with a liquid product contained in a container (4), the system comprising a pressurizing unit for driving the liquid product contained in the container, the system further comprising a calculator for estimating the injection flow rate at the outlet of the container, said injection flow rate at the outlet being estimated on the basis of a law of deformation of the system under the effect of the pressure inside the container.