Venous valves vector.
Competent valve: closed, Competent valve: open,
Passage of micronized Daflon 500 mg through open valve, Valve at early stage of inflammation, Inflamed valve: closed, Inflamed valve: open, Inflamed incompetent valve, Varicose vein + inflamed incompetent valve, Varicose vein + inflamed incompetent valve + reflux