Inferior vena cava (IVC) filter placement and removal is a medical procedure involving the insertion of a small, cone-shaped device into the inferior vena cava, a large vein that carries blood from the lower body to the heart. The filter is designed to trap blood clots and prevent them from reaching the lungs, reducing the risk of pulmonary embolism. Removal of the IVC filter is performed when it is no longer needed or if complications arise.