The best cure for venous thrombosis is to draw the clot out of the blood vessel through a guide wire and prevent the formation of a pulmonary embolism. The current treatment for venous thrombosis is the new thrombus aspiration method, which consists of making a small incision in the surface of the blood vessel, placing a guidewire, passing the guidewire through the location of the thrombus, and then advancing the catheter that is used for aspiration in the direction of the guidewire to remove the blood vessel from which the thrombus is located. This treatment is effective and minimally invasive. In addition, in order to prevent the thrombus from dislodging and causing a serious pulmonary embolism, a filter can be placed at the upper end of the blood vessel to prevent the thrombus from dislodging. It is important to note that the treatment of minimally invasive venous thrombosis requires a comprehensive evaluation by a physician, such as the use of urokinase-based thrombolytic drugs. To prevent recurrence of the thrombus after surgery, medication such as warfarin is also needed.