The FLOWTRON systems are non-invasive prophylactic and therapeutic systems to reduce the incidence of anomalies or vascular and venous deficiencies in the upper and lower extremities, through the technique of intermittent pneumatic compression (CNI). The application of external pneumatic compression generates an effect that simulates and / or complements the natural system of venous return that the muscles of the extremities offer. The system consists of a pump and a group of clothes that can be calf, thigh, foot, leg and arm.