Studying the Mechanical Behavior of Tissue in the Generation of Pressure Sores using Simulation and a Guinea Pig Experimental Model
محل انتشار: مجله فیزیک پزشکی ایران، دوره: 5، شماره: 2
سال انتشار: 1387
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 60
فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJMP-5-2_008
تاریخ نمایه سازی: 5 شهریور 1402
چکیده مقاله:
Introduction: Pressure sores refer to lesions that are produced while a constant pressure causes necrotic tissue to grow. The need for a better comprehension of the process has led researchers to artificial generation of pressure sores. Modeling the mechanical behavior of tissue will provide a better understanding of this process as well as a more suitable selection of system parameters. Materials and Methods: In this research, the mechanical behavior of tissue was modeled using the finite element method. A system with pressure sensors and a suitable feedback mechanism was used to generate pressure sores. The elastic parameters of tissue were obtained using uniaxial tensile strength tests. The thicknesses of skin layers were calculated by taking microscopic images of skin samples and using Motic Images ۲۰۰۰ version ۱.۲ software. Results: The results of the finite element modeling illustrate the strain and stress profiles in tissue layers. The maximum values of deviatory strain occurred under the border of the disc in the muscle layer. Deviatory and shear stresses reached their maximum values under the center of the disc in the skin layers. Discussion and Conclusion: The simulation and experimental results are in good agreement. Therefore, the introduced model may be used for better comprehension of tissue behavior. Better results may be obtained by finding a more accurate method for calculating tissue parameters.
کلیدواژه ها:
نویسندگان
Sahar Moghimi
Ph.D. Student, Biomedical Engineering Dept., Tarbiat Modares University, Tehran, Iran
Mohammad Hossein Miran Beygi
Assistant Professor, Biomedical Engineering Dept., Tarbiat Modares Univerisy, Tehran, Iran
Giti Torkaman
Associated Professor, Physiotherapy Dept., Tarbiat Modares University, Tehran, Iran
Ali Mahloojifar
Assistant Professor, Biomedical Engineering Dept., Tarbiat Modares Univerisy, Tehran, Iran