vena cava filter
A device designed to remove blood clots, which placed by an interventional radiologist or vascular surgeon within the inferior vena cava–IVC in patients at high risk of developing venous thromboembolism, who are not candidates for anticoagulation, the standard treatment for thrombosis. Vena cava filters should be removed as soon as safely possible.
Complications Deep vein thrombosis, filter fracture, migration, or embolisation, and IVC perforation.
Synonyms Inferior vena cava filter, IVC filter
References http://www.theheart.org/article/ 1109059.do