METHODS USED FOR THE VIRTUAL HUMAN BONES AND JOINTS RECONSTRUCTION. NORMAL AND PATHOLOGICAL HUMAN JOINTS VIRTUAL SIMULATIONS

SECTION 2: APPLIED GEOMETRY AND GRAPHICS

  • POPA Laurentiu Dragos assoc. professor, PhD, University of Craiova, Faculty of Mechanics, Department of Automotive, Transportation and Industrial Engineering
  • TUTUNEA Dragos lecturer, PhD, University of Craiova, Faculty of Mechanics, Department of Automotive, Transportation and Industrial Engineering
  • GHERGHINA George professor, PhD, University of Craiova, Faculty of Mechanics, Department of Automotive, Transportation and Industrial Engineering
  • CIUNEL Stefanita lecturer, PhD, University of Craiova, Faculty of Mechanics, Department of Automotive, Transportation and Industrial Engineering
Keywords: virtual bones, human joints, simulations, virtual anatomy, skeleton.

Abstract

To understand the problems, which appear in every human joint, it is very important to know the anatomy and morphology of the human bones and the way in which the components are working together to realize a normal functionality. For this purpose was used a CAD parametric software which permits to define models with a high degree of difficulty. First, it was used a CT or MRI device to obtain the parallel sections to study each component of the bone. A 3D scanner can be used only for the outer geometry. In the second step the images were transferred to a 2D CAD software, like AutoCAD, where the outer and inner contours of the bone were approximate to polygonal lines composed by many segments. After this, the contours were transferred to a 3D CAD software, like SolidWorks, where, step by step, and section by section, was defined the virtual bone component. Additionally to the main shape can be attached other Loft, Round or Dome shapes. For some components, as vertebrae, mandible or skull bones, can be used a preliminary model obtained by parallel sections. Starting from this, the model can be defined using the main 3D curves and we can get the final virtual solid model. In some simulations, the soft components, as muscles or ligaments, were included in simulations using non-linear virtual springs. Also, sometimes were used implants or prosthetic elements. In the final of the paper, were extracted important conclusions.

Published
2015-06-13
How to Cite
Dragos, P., Dragos, T., George, G., & Stefanita, C. (2015). METHODS USED FOR THE VIRTUAL HUMAN BONES AND JOINTS RECONSTRUCTION. NORMAL AND PATHOLOGICAL HUMAN JOINTS VIRTUAL SIMULATIONS. Journal of Industrial Design and Engineering Graphics, 10(2), 49-54. Retrieved from http://sorging.ro/jideg/index.php/jid/article/view/233