tailieunhanh - Báo cáo hóa học: " Patient specific ankle-foot orthoses using rapid prototyping"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Patient specific ankle-foot orthoses using rapid prototyping | Mavroidis et al. Journal of NeuroEngineering and Rehabilitation 2011 8 1 http content 8 1 1 Hill JOURNAL OF NEUROENGINEERING NCR AND REHABILITATION RESEARCH Open Access Patient specific ankle-foot orthoses using rapid prototyping 1 1 1 2 1 1 Constantinos Mavroidis Richard G Ranky Mark L Sivak Benjamin L Patritti Joseph DiPisa Alyssa Caddie 1 11 3 4 Kara Gilhooly Lauren Govoni Seth Sivak Michael Lancia Robert Drillio Paolo Bonato Abstract Background Prefabricated orthotic devices are currently designed to fit a range of patients and therefore they do not provide individualized comfort and function. Custom-fit orthoses are superior to prefabricated orthotic devices from both of the above-mentioned standpoints. However creating a custom-fit orthosis is a laborious and timeintensive manual process performed by skilled orthotists. Besides adjustments made to both prefabricated and custom-fit orthoses are carried out in a qualitative manner. So both comfort and function can potentially suffer considerably. A computerized technique for fabricating patient-specific orthotic devices has the potential to provide excellent comfort and allow for changes in the standard design to meet the specific needs of each patient. Methods In this paper 3D laser scanning is combined with rapid prototyping to create patient-specific orthoses. A novel process was engineered to utilize patient-specific surface data of the patient anatomy as a digital input manipulate the surface data to an optimal form using Computer Aided Design CAD software and then download the digital output from the CAD software to a rapid prototyping machine for fabrication. Results Two AFOs were rapidly prototyped to demonstrate the proposed process. Gait analysis data of a subject wearing the AFOs indicated that the rapid prototyped AFOs performed comparably to the prefabricated polypropylene design. Conclusions The rapidly prototyped orthoses fabricated in this study provided good fit of .