《中国康复理论与实践》

《中国康复理论与实践》 ›› 2005, Vol. 11 ›› Issue (03): 173-174.

• 专题 • 上一篇    下一篇

新型颈椎间盘假体的双层结构优化设计

张永睿; 李涤尘; 连芩   

  1. 西安交通大学机械制造系统工程国家重点实验室 陕西西安市 710049
  • 收稿日期:2004-12-23 出版日期:2005-03-25 发布日期:2005-03-25

New double-layer structure cervical spinal disc prosthetic and its optimized design

ZHANG Yong-rui, LI Di-chen, LIAN Qin   

  1. The State Key Lab For Manufacturing Systems Engineering,Xi'an Jiaotong University, Xi'an 710049, China
  • Received:2004-12-23 Published:2005-03-25 Online:2005-03-25

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被引次数

2

摘要： 目的改进颈椎间盘假体存在的问题。方法分析自然状态下人体颈椎间盘的功能要求,应用计算机辅助设计(CAD)技术和ANSYS分析手段,优化设计制造由两种高分子材料复合成型、双层结构的新型颈椎间盘假体。结果双层圆柱结构模型(外层为圆柱状纤维环,内层为圆柱状髓核)的颈椎间盘假体具有可以保证上下锥体所受的应力都比较小;正常状态下,可使假体在外部纤维环和内层髓核的最大应力都比较小;该型结构简单,需要的模具结构简单,定位方便准确。结论新型颈椎间盘假体的双层结构为双圆柱结构。

关键词: 颈椎间盘, 假体, 双层结构, 优化设计

Abstract: Objective To solve some problem in present cervical spinal disc.MethodsAfter analyzing the function of cervical spinal disc, 2 kinds of materials were chosen to design and fabricate the double-layer cervical spinal disc prosthetic. CAD and ANSYS technologies were used to optimize 4 kinds of the new prosthetic structure.Results and ConclusionThe materials if the prosthetic is proper, and the double-layer column structure of the new prosthetic shows some excellence characteristics,including maximum stress of nucleus and annulus properly, simple structure and can be facilitated and exactly graft.

Key words: cervical spinal disc, prosthetic, double-layer structure, optimized design