Ni-Ti形状记忆合金椎体扩张器的设计与制作

Design and Manufacture of an Innovative Vertebral Dilator of Ni-Ti Shape Memory Alloy

设计了由Ni-Ti形状记忆合金丝编织的网格型椎体扩张器,用于治疗骨质疏松性的椎体压缩性骨折。编织出不同规格的椎体扩张器并进行了力学性能测试,观察径向支撑力与弹性模量,得出较优的网格编织参数。从实用性出发改进了扩张器两端的结构,获得了可以满足临床应用要求的新型椎体扩张器。

A knitted gridding vertebral dilator of Ni-Ti shape memory alloy was designed to be used in the treatment of osteoporosis vertebral compressed fracture. The knitted gridding vertebral dilators with different parameters were knitted and their radial force and elastic modulus were tested; then the best knitted parameters were obtained. Taking into account of the practical application of the vertebral dilators, the structure of both ends of the dilator was improved and an innovative vertebral dilator was obtained which can meet the clinical application needs.