44 / 2019-06-25 05:32:08

Polyimid mechanical and biological performance manufactured by injection moulding for bone plate and screw design

Bone plate,Polyimid,Injection mould

全体主题 > Design and fabrication of biological systems

Osteoporosis is very common nowadays. In European Union, nearly 22 million women and 5.5 million men had osteoporosis in 2010[1]. In US 2010, eight million women and more than one million men had osteoporosis [2,3]. For osteoporosis patients, losing critical skeletal interconnection and lack internal support from trabecular bone would cause comminute fractures easily [4]. Lack of sufficient mechanical strength of cortical bone and trabecular bone will lead to failure of surgery for those patients. In that case, finding a new material and design for bone screws and bone plate with stronger mechanical fixation with loose bones is very promising. Polyimide is an incredibly powerful synthetic polymer with amazing heat and chemical resistance. The mechanical properties of polyimide are very similar to those of bone which could support enough strength for fixing the bone and could also avoid stress shielding.