TY - JOUR
T1 - Influence of design parameters on the mechanical behavior and porosity of braided fibrous stents
AU - Rebelo, Rita
AU - Vila, Nívea
AU - Fangueiro, Raul
AU - Carvalho, Sandra
AU - Rana, Sohel
PY - 2015/12/5
Y1 - 2015/12/5
N2 - In spite of all innovations in stent design, commonly used metallic stents present several problems such as corrosion, infection and restenosis, leading to health complications or even death of patients. In this context, the present paper reports a systematic investigation on designing and development of 100% fiber based stents, which can eliminate or minimize the problems with existing metallic stents. For this purpose, braided stents were produced by varying different materials, structural and process parameters such as mono-filament type and diameter, braiding angle and mandrel diameter. The influence of these design parameters on mechanical behavior as well as stent's porosity was thoroughly investigated, and suitable parameters were selected for developing a stent with mechanical characteristics and porosity matching with the commercial stents. According to the experimental results, the best performance was achieved with a polyester stent designed with 0.27. mm monofilament diameter, braiding angle of 35° and mandrel diameter of 6. mm, providing similar properties to commercial Nitinol stents.
AB - In spite of all innovations in stent design, commonly used metallic stents present several problems such as corrosion, infection and restenosis, leading to health complications or even death of patients. In this context, the present paper reports a systematic investigation on designing and development of 100% fiber based stents, which can eliminate or minimize the problems with existing metallic stents. For this purpose, braided stents were produced by varying different materials, structural and process parameters such as mono-filament type and diameter, braiding angle and mandrel diameter. The influence of these design parameters on mechanical behavior as well as stent's porosity was thoroughly investigated, and suitable parameters were selected for developing a stent with mechanical characteristics and porosity matching with the commercial stents. According to the experimental results, the best performance was achieved with a polyester stent designed with 0.27. mm monofilament diameter, braiding angle of 35° and mandrel diameter of 6. mm, providing similar properties to commercial Nitinol stents.
KW - Braiding
KW - Design parameters
KW - Fibrous stents
KW - Mechanical behavior
KW - Porosity
UR - http://www.scopus.com/inward/record.url?scp=84942257931&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2015.07.051
DO - 10.1016/j.matdes.2015.07.051
M3 - Article
VL - 86
SP - 237
EP - 247
JO - Materials and Design
JF - Materials and Design
SN - 0264-1275
ER -