Treating Deep Vein Thrombosis

If the clots in the leg were to move in the veins through inferior vena cava through heart into the lungs which leads to pulmonary embolus which is a blockage of the main artery of the lung.  A solution to fix this problem is inputting an inferior vena cava filter that is collapsible into the kind of size of catheters that can go through lumen of the catheter, which then expands and does filtration.  It can be pulled out later.