经皮置入永久性腔静脉滤器是抗凝疗法中预防肺栓塞的传统方法,暂时性可回收的腔静脉滤器始于几年前,它避免了永久性滤器的远期副作用。作者对DM滤器进行了动物模型上的广泛研究,包括滤器置入,稳定性,血凝块收集效果及滤器回收。作者在动物模型上评价暂时性或永久性腔静脉滤器使用后的效果及安全性。DM滤器是预制成双螺旋状具有弹性的钢丝,实验动物为成年绵羊15只,共放置45个滤器,放置后8～386天行放射学及显微镜检查。结果显示,在放置的45个滤器中,29个于0 Percutaneous placement of a permanent vena cava filter is the traditional method of preventing pulmonary embolism in anticoagulant therapy. Temporary recoverable vena cava filters begin several years ago and avoid the long-term side effects of a permanent filter. The authors performed extensive studies on animal models of DM filters, including filter placement, stability, clot collection and filter recovery. The authors evaluated the effect and safety of temporary or permanent vena cava filters on animal models. DM filter prefabricated into a double helix flexible steel wire, the experimental animals were 15 adult sheep, placed a total of 45 filters placed 8 to 386 days after radiography and microscopy. The results showed that out of the 45 filters placed, 29 were at zero