کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5020351 1469068 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bending behaviors of fully covered biodegradable polydioxanone biliary stent for human body by finite element method
ترجمه فارسی عنوان
رفتارهای خمشی کامل پلی اتیلن دی اکسیدان دفع ادرار صفراوی برای بدن انسان توسط روش المان محدود
کلمات کلیدی
استنت های صفراوی پلییدوکسانون زیست تخریب پذیر، روش خم شدن سه نقطه، خم شدن بار، فشار پلاستیکی، روش عنصر محدود
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
چکیده انگلیسی

This paper presents a study of the bending flexibility of fully covered biodegradable polydioxanone biliary stents (FCBPBs) developed for human body. To investigate the relationship between the bending load and structure parameter (monofilament diameter and braid-pin number), biodegradable polydioxanone biliary stents derived from braiding method were covered with membrane prepared via electrospinning method, and nine FCBPBSs were then obtained for bending test to evaluate the bending flexibility. In addition, by the finite element method, nine numerical models based on actual biliary stent were established and the bending load was calculated through the finite element method. Results demonstrate that the simulation and experimental results are in good agreement with each other, indicating that the simulation results can be provided a useful reference to the investigation of biliary stents. Furthermore, the stress distribution on FCBPBSs was studied, and the plastic dissipation analysis and plastic strain of FCBPBSs were obtained via the bending simulation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanical Behavior of Biomedical Materials - Volume 77, January 2018, Pages 157-163
نویسندگان
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