自扩金属支架已广泛应用于各种胃肠道恶性梗阻的治疗 ,新的技术进步使自扩金属支架能扩展至更大的直径并有更大的可弯曲度 ,从而使自扩金属支架能放置入更弯曲的狭窄部位 ,例如结肠的狭窄。自扩金属支架近来已作为治疗结肠恶性梗阻确定性方案 ,作为癌性梗阻姑息治疗和急性梗阻 Self-expanding metal stent has been widely used in the treatment of a variety of gastrointestinal malignant obstruction, the new technological advances so that self-expanding metal stent can be expanded to a larger diameter and greater flexibility so that self-expanding metal stent can Place it in a more tortuous site such as the stenosis of the colon. Self-expanding metal stents have recently been used as a definitive regimen for the treatment of malignant colon obstruction as a palliative treatment for cancer obstruction and acute obstruction