The Venowave VW5 series comprises compact, battery-operated non-pneumatic, non-sequential, peristaltic wave compression pumps designed to generate wave-form motion. When securely fastened below the knee on the calf, these pumps create compression, leading to an increased upward volumetric displacement of venous and lymph fluid. The device is used for Management of the symptoms of post thrombolytic syndrome (PTS), Prevention of deep vein thrombosis (DVT), Prevention of primary thrombosis, Treatment of lymphedema, Diminishing post-operative pain and swelling, Treatment of leg swelling due to vascular insufficiency, Treatment of varicose veins Treatment of chronic venous insufficiency.