Used for the prevention of recurrent pulmonary embolism via placement in the vena cava in the following situations:
• Pulmonary thromboembolism when anticoagulant therapy is contraindicated;
• Failure of anticoagulant therapy in thromboembolic diseases;
• Emergency treatment following massive pulmonary embolism where anticipated benefits of conventional therapy are reduced; and
• Chronic, recurrent pulmonary embolism where anticoagulant therapy has failed or is contraindicated.