المؤلفون: Chun Qiu Zhang, You Quan Gu, Xi Yan Tian, Li Min Dong

المصدر: Advanced Materials Research. :2535-2538

مصطلحات موضوعية: musculoskeletal diseases, Engineering drawing, Materials science, business.industry, General Engineering, Biomechanics, Structural engineering, Knee Joint, Meniscus (anatomy), musculoskeletal system, Finite element method, Stress (mechanics), medicine.anatomical_structure, Contact mechanics, Knee prosthesis, medicine, business, Joint (geology)

الوصف: The research uses the finite element software ANSYS to analyze the stress of the standard artificial knee joint, particularly the contact stress between the femoral condyle and the ultra-high molecular weight polyethylene (UHMWPE) meniscus. When analyze the stress of the standard artificial knee joint in the case that knee joint unbend (bend 0°) and bend 10°and 20°, the lower surface of the proximal tibia maintains completely constraints and we apply the corresponding constraints and surface load with the actual situation.Finally calculate the stress distribution of the artificial knee joint. The analysis results were compared with the stress of the normal knee joint to further improve the design of the artificial knee joint.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::e8bc0cda8a209548158b2aa39a35a5fd
https://doi.org/10.4028/www.scientific.net/amr.403-408.2535

المؤلفون: Li-min Dong, Rui Wang, Chun-qiu Zhang, Xian Li, Xi-yan Tian, Qing Yang

المصدر: 2010 2nd International Conference on Information Engineering and Computer Science.

مصطلحات موضوعية: musculoskeletal diseases, Reverse engineering, Measure (data warehouse), Database, Computer science, 3d model, Geometry, Solid modeling, Knee Joint, musculoskeletal system, computer.software_genre, Dimension (vector space), Statistical analysis, Tomography, human activities, computer

الوصف: According to measure relevant parameters of the 3D models of normal human knee, standard 3D knee model and geometry dimension database were established. Firstly, Comput-ed Tomography (CT for short) was carried out in 110 healthy volunteers in a hospital in Tianjin. Secondly, using the reverse engineering software MIMICS, the CT images of knee joint were processed and 3D model was reconstructed. Then, relevant parameters of the 3D knee model were measured. Finally, all the data measured was used for statistical analysis by using SPSS 12.0 and geometry dimension database of knee joint which meets the Chinese standard was established correspondingly. In this way, knee complex shape reappears completely. 3D model of human knee joint and standard geometry dimensions database have high authenticity and accuracy. It is also important to design knee prostheses which consistent with the anatomical characteristics of the Chinese.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::3cb1192adad06e6677d869fc2c601a5e
https://doi.org/10.1109/iciecs.2010.5677807

المؤلفون: Jinduo Ye, Li Min Dong, Dajiang Wu, Wei Chen, Nian Liu, Chun-Qiu Zhang

المصدر: 2009 IEEE 10th International Conference on Computer-Aided Industrial Design & Conceptual Design.

مصطلحات موضوعية: Reverse engineering, Engineering drawing, Engineering, business.industry, Biomechanics, Point cloud, Image processing, Iterative reconstruction, Solid modeling, Structural engineering, Knee Joint, computer.software_genre, Finite element method, business, computer

الوصف: A new method about reconstructing the finite element model of artificial knee joint is persented in this article after the research on reverse engineering (RE for short). Firstly, on the basis of the prosthesis prototype, IMAGEWARE and PRO/E are used to deal with point cloud of prototype and then prosthesis model is reconstructed; secondly, based on CT of human knee joint, distal femur (DF for short) and proximal tibia (PT for short) are built after processing image and regulating gray value; and finally all of the models built above are assembled in one order and exported finite element models, which forms the foundation of biomechanics analysis.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::a9fe843937ef5265a7b24fa57b0f0508
https://doi.org/10.1109/caidcd.2009.5375147