章良渭2006-07-262018-06-292006-07-262018-06-291999-07-31http://ntur.lib.ntu.edu.tw//handle/246246/22325本研究旨在設計踝關節機構幫助需 要踝足(或膝踝足)矯具之中風病患，經過 矯具復健之後可以儘可能和發病之前一 樣正常獨立地行走。病人中風之後，步 行時最大的障礙是無法隨意而自主地控 制肌肉進行收縮與放鬆的動作。各個關 節在肌力不足或不恰當的狀況之下，自 然無法呈現正常的步態。研究與設計的 重點在於按踝關節的力矩狀況，找出正 常步態的特徵，然後透過一些機械裝 置，提供中風病患踝關節適當的力矩 值，彌補力矩的不足或是克服不正常的 肌肉收縮，改善他們比較不理想的步 態，儘量恢復中風之前良好的步態特 徵。經過初步設計後，再從事踝關節機 構的細部力學分析、設計與實物製作。 最後，臨床上讓病患試穿，並且評估輔 具的功效。評估的工作主要是透過步態 量測，觀察病人行走時的姿態，各關節 的力矩值與各節段的能量變化。This project is concerning the development of a orthosis for the disabled. In this project, we focused on designing ankle mechanisms which were incorporated into ankle-foot orthoses to assist the stroke patients. It has been suggested that weight-bearing be helpful in normalizing tone and maintaining the joint range of motion as soon as the patient is medically stable. Our research first studied the dynamic behavior of the ankle and characterized the normal gait. The ankle mechanisms then were designed to fulfill the requirement of the ankle joint moment during the gait cycle. A prototype of the ankle mechanism was fabricated and a preliminary efficacy test was carried out. The mechanical structure design, biomechanical calculations, and ergonomic considerations were included. A clinical investigation and biomechanical evaluation were performed.application/pdf44494 bytesapplication/pdfzh-TW國立臺灣大學醫學工程學研究所reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/22325/1/882614E002002.pdf