Computer Aided Design and Development in Specialized Seating/Positioning Wheelchair

• Main Authors: Bi-Nian Ni, 倪百男
• Other Authors: 鍾高基
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/72448663046005658840

碩士 === 國立成功大學 === 醫學工程研究所 === 87 === Abstract Following with the melioration of medical and engineering technology, its to attach importance to welfare and living quality of deformity; The ultimately purpose of rehabilitated medicine is to improve the functional development of deformities. In Taiwan, the cerebral palsy have often developmental delay, deformity, and functional disabilities resulting from abnormal muscle tone, reflex and impaired sensory system. Early intervention for C.P. initiating from 2 to 3 years old, who have received early rehabilitation treatment, seating and body supports with assistant technology as well as long-term training and education, has demonstrated to provied promising outcomes in significantly improved abnormal muscle tone, reflex, bodys coordination and balanced control. Unfortunately, there is lack of assistive technology service program to provide systematical clinical evaluation and prescription of specialized seating / positioning support systems for the neuromuscular impairment in Taiwan. In addition, the fields of rehabilitation technology/assistive devices are very new with little R&D. This project is to design specialized seating/positioning wheelchair for the cerebral palsied. The goal is to provide clinical effective seating supports for minimizing abnormal muscle tone and reflex, and to improve balance control, movement coordination and functional activities for the cerebral palsied. This project select 93 cerebral palsied, measuring the anthropometric data of optimized seating position. Using Multivariate Cluster Analysis to divide subjects into two clusrters, according to ages 2~8 and 9~26. Then using Univariate Regression Analysis to predict the range of anthropometric data in which two clusters. In order to target the modular dimension of the wheelchair main structure, therefore to follow the example of case numbers, to select in each division and to decide the standard dimension of seating anthropometric, at the same time to transfer variance into wheelchair’s main structure and to proceed conceptual design. The project using AutoCAD to draw wheelchair dimension plane and three-D conceptual drawing. Using spacilized CAD/CAM software Pro/Engineer to simulate actual wheelchair specification and to compute the center of gravity position and inertia tensor of wheelchair structure. The results of this project indicate that the center of gravity position locate upon the center axis of cross bar, underscoring the seating system. Conforming to safety designing condition; the next, in all direction of inertial tensor respect to wheelchair are greater than tensors of plane. It means that the motion of wheelchair will be slower when it turning around. In the other hand, it will be more laborions when family members moving wheelchair. In view of obvious variabilitiy between each cerebral palsy. The design of individual seating and positioning wheelchair must to be base on biomechanics, posture controling, neuropathology, human factor engineering, to investigate objective clinical evaluation, to provide effective personal deficient device. Final destination of this research are (1) Keeping normal posture control and bring to maximum regular function. Promoting the patient independent ability. (2) Providing clinical training and collecting the data auxiliaryequipment(3) Training engineers to design and manufacture seating and positioning body support. (4) Shifting technology to medical treatment system. Developing science and technology about auxiliaryequipment.