The endografts that he and his associates are currently using are made of Dacron supported by a nitinol stent skeleton, 他和他的同事目前使用的内支架是由镍钛合金的支架结构、外层的涤纶所构成，“这种结构使得这种纤维性支架可以伸缩自如，从而到达撕裂部位”这名外科医生说。