《中国康复理论与实践》

《中国康复理论与实践》 ›› 2009, Vol. 15 ›› Issue (03): 283-285.

• 康复工程 • 上一篇    下一篇

大腿假肢接受腔几何建模方法和实验研究

曹学军1,2;倪先胜3;刘文勇3;王君臣3;李丰3;李同磊1,2   

  1. 1. 中国康复研究中心康复工程研究所，北京市 100068;2.首都医科大学康复医学院，北京市 100068;3. 北京航空航天大学机械工程及自动化学院，北京市 100083
  • 收稿日期:2008-07-29 出版日期:2009-03-01 发布日期:2009-03-01

Geometric Modeling of Prosthetic Socket

CAO Xue-jun, NI Xian-sheng, LIU Wen-yong, et al   

  1. Institute of Rehabilitation Engineering, Capital Medical University School of Rehabilitation Medicine, China Rehabilitation Research Centre, Beijing 100068, China
  • Received:2008-07-29 Published:2009-03-01 Online:2009-03-01

PDF (PC)

被引次数

12

摘要： 目的 探讨大腿假肢接受腔的几何建模方法。方法 通过统计分析建立接受腔参考形状并集成进计算机辅助接受腔设计CASD软件。接受腔设计时，根据残端的测量数据，利用参考形状变化得到个体化的初始接受腔形状；借助OpenGL环境下的三维交互选择和修改方法，得到最终的接受腔几何形状。在专用数控设备上进行加工试验。结果 该方法操作简便，设计和制作的接受腔阳模形状一致，满足精度要求。结论 本方法基本符合临床需求，但需要进一步优化交互修改时的模型表面变化规律。

关键词: 计算机辅助接受腔设计, 几何建模, 假肢接受腔

Abstract: Objective To investigate the geometric modeling method for trans-femoral prosthetic socket. Methods The socket reference shapes (i.e. shape templates) were constructed based on the statistic analysis and integrated into the CASD program. The initial socket shape was obtained by transformation from the corresponding reference shape based on the data from the patient's stump and the final socket shape was determined by a kind of three-dimensional interaction method under the OpenGL environment. The fabrication experiment is conducted on the specialized numerical control machine. Results The interactive modification method was easy to use. The machined socket mold is consistent with the designed model in the shape and the precision. Conclusion This method can meet the clinical requirements in the main, but need to optimize the surface shaping characters and rules during the interactive modification stage.

Key words: computer assisted socket design, geometric modeling, prosthetic socket