incompetent vein valve

incompetent vein valve

A valve, defective either by constitution or by stretching, that fails to support a column of blood and promotes stagnation, increased pressure on the vein wall and varicosity.
References in periodicals archive ?
VNUS Medical is a leading provider of medical devices for the minimally invasive treatment of peripheral vascular disease, including venous reflux, a progressive condition caused by incompetent vein valves in the leg.
Incompetent vein valves are the major mechanical factor in the development of varicose veins.
VNUS is a leading provider of medical devices for the minimally invasive treatment of venous reflux disease, a progressive condition caused by incompetent vein valves in the leg.