The VW5 is a peristaltic wave pump driven by a small DC gearmotor and powered by a single AA battery.The puhttps://gudid.fda.gov/gudid/resources/images/icons/icon_info_small.pngmp assembly is intended for application to the calf of the leg, though in principal, it may be used on other parts of the body. The calf, in particular, is the site where clots can form in the bloodstream, and hence the application of a pump to this site can prevent the formation of these clots by preventing pooling and stagnation of blood in this area. It also prevents accumulation of blood or lymphatic fluids that cause swelling and pain (Post Thrombotic syndrome, PTS) by pumping this area out.
A system used for the noninvasive treatment and prevention of venous disorders and sequelae such as oedema, deep vein thrombosis (DVT) and pulmonary embolism (PE). It functions by applying sequential pressure to a patient's legs to promote venous blood flow. It consists of a compression pump, control/timing mechanism, tubing and has pneumatic stockings, sleeves, or a suit with several chambers that inflate and deflate sequentially in a pattern beginning at the foot or ankle and continuing to chambers around the calf and thigh. In some systems, each chamber reaches the same pressure but at different times, while others apply greater pressure distally which gradually diminishes higher up.
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