Abstract: The device comprises modular parts with one module being an airtight casing shaped to approximate the shape of the limb needing circulation assistance. A pressure module may be attached to the end of the casing. This module includes a diaphragm which is operated by control circuitry responsive to a first sensor positioned to provide an indication of the entry of a blood pulse to the extremity. This sensor provides a timing pulse which activates a solenoid attached to the diaphragm. The timing pulse is passed through a variable time delay which time delay is controlled by a second sensor connected at a point on the extremity. The second sensor provides an indication of the amplitude of the blood pulse which passes through the extremity. The time delay period is varied to provide maximum amplitude of the pulse blood flow within the extremity. Furthermore, an exercise module may be connected to the casing in order to provide the patient with a means for actively stimulating his own blood circulation.