目的探讨置入下腔静脉滤器预防因下肢静脉血栓脱落引起肺栓塞的效果和安全性。方法15例经造影证实为下肢静脉血栓患者置入下腕静脉滤器,滤器位于双肾静脉水平以下的腔静脉内。3~36个月摄取腹部平片随访复查,观察滤器的形态、位置。结果全部滤器均经股静脉穿刺置入,其中经右股静脉置入11例,左股静脉置入4例,无严重并发症发生。随访发现15只滤器均展开良好,无移位,无1例发生腔静脉阻塞或肺栓塞。结论置入下腕静脉滤器预防肺栓塞是安全、有效的方法。 Objective To investigate the effect and safety of inferior vena cava filter in preventing pulmonary embolism caused by the exfoliation of venous thrombus in lower extremities. Methods 15 cases confirmed by contrast-enhanced venous thrombosis were placed in the lower wrist venous filter, the filter located in the venous vein below the level of renal vein. 3 ~ 36 months of abdominal plain film follow-up review, observe the shape and location of the filter. Results All filters were punctured by femoral vein puncture. Among them, 11 cases were injected into the right femoral vein and 4 cases into the left femoral vein without serious complications. Follow-up found that all 15 filters were well developed, no shift, no case of vena cava occlusion or pulmonary embolism. Conclusion It is a safe and effective method to prevent pulmonary embolism by inserting the wrist venous filter.