Inferior vena cava filter implantation involves fixing or attaching a filter to the wall of the inferior vena cava to maximize thrombus containment, commonly made of stainless steel and titanium. The main function of the inferior vena cava filter implantation is to keep the inferior vena cava thrombus stuck on its top, which, together with the impact of the blood flow, accelerates the dissolution of the thrombus. It is often used clinically to prevent pulmonary embolism due to dislodgment of the inferior vena cava thrombus, especially in patients with pulmonary embolism who have developed complications such as gastrointestinal bleeding or intracranial hemorrhage during the use of anticoagulant drugs and who have to discontinue drug anticoagulation therapy, as well as in patients with driftable thrombus or septic thrombus found in the inferior vena cava; it is also used in patients with major surgery and trauma, as well as in patients who are bedridden and paralyzed for a long time, mainly to reduce the risk of The main purpose is to reduce the risk of pulmonary embolism in these patients.