The disclosed invention aids the treatment of vascular problems with blood circulation in the body extremities by mechanically increasing or assisting the venous blood flow and prevents or minimizes shock through the application of controlled external pressure. In an alternate use, the device can also he used to compress a limb wound to reduce loss of blood in accidents and injuries during military operations. The invention comprises of two inflatable air bladders with a switchable filling valve to enable inflation of both bladders simultaneously or separately. The invention is inflated by either air or liquids for compression, fillable by mouth or hand pump, with the level of compression controllable by the user or installer. The invention is of reduced weight, allows as of manufacture and is of low cost. The invention is highly portable arid storable for battlefield or ambulance emergency care uses, flexible, easily and quickly installed.