Design of a corneal suturing nail based on shape memory alloy

被引:0
|
作者
Wang L. [1 ]
Yang Y. [1 ]
Sun F. [1 ]
Wang Z. [1 ]
Deng S. [2 ]
机构
[1] School of Mechanical Engineering and Automation, Beihang University
[2] Beijing Institute of Ophthalmology
来源
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2010年 / 46卷 / 23期
关键词
Cornea; Finite element simulation; Shape memory alloy; Suturing nail;
D O I
10.3901/JME.2010.23.161
中图分类号
学科分类号
摘要
A corneal suturing nail based on shape memory alloy (SMA), which is applied to the corneal transplant operation, is designed. The characteristics of the SMA are researched, and the corneal tissue compatibility is verified according to the experiments. The size and shape of the nail are designed based on the corneal size and parameters. The finite element models of the cornea and suture nail are established to optimize the size of the nail by the finite element software ANSYS. The new idea and method for the corneal transplant operation are obtained, which simplifies the process of suturing to a large extent and avoid the operation of tying the suture knot and removing the stitches. The method is of great significance to the development of new medical technology. © 2010 Journal of Mechanical Engineering.
引用
收藏
页码:161 / 165
页数:4
相关论文
共 10 条
  • [1] Smith N., Betemps M., Jutard A., Et al., Penetrating keratoplasty: A robotised cut of cornea, The 2009 IEEE/RSJ International Conference on Intelligent Robots and Systems(IROS 2009), pp. 740-745, (1999)
  • [2] Zhao M., Zhang Z., Ma H., Et al., Experimental study on viscoelastic properties of human cornea, Journal of Biomedical Engineering, 22, 3, pp. 550-554, (2005)
  • [3] Zeng P., Finite Element Analysis and Application, (2003)
  • [4] Hua Y., Wang C., Application of NiTi shape memory alloys in medicine, Journal of Hainan Normal University, 17, 1, pp. 39-43, (2004)
  • [5] Yang Y., Liu X., Fu H., Finite element simulation of needle insertion into cornea, Chinese Journal of Mechanical Engineering, 44, 12, pp. 24-29, (2008)
  • [6] Mammone R.J., Gersten M., 3-D corneal modeling system, IEEE Transactions on Biomedical Engineering, 37, 1, pp. 66-72, (1990)
  • [7] Wei D., Design and control of cornea grafting robot, (2006)
  • [8] Liu X., Mechanical modeling and simulating during robotic suturing for cornea replanting, (2007)
  • [9] Yang Y., Liu X., The Mechanics modeling and simulation of the stitches penetrating the cornea, Progress in Natural Science, 18, 12, pp. 1451-1458, (2008)
  • [10] Pandolfi A., Manganiello F., A model for the human cornea: Constitutive formulation and numerical analysis, Biomechanics and Modeling in Mechanobiology, 5, 4, pp. 237-246, (2006)