https://scholars.lib.ntu.edu.tw/handle/123456789/83314
標題: | 下肢癱瘓病患交替旋進助行矯具之設計 Design of a Reciprocal Swivel Gait Orthosis for Paraplegics |
作者: | 章良渭 | 公開日期: | 31-十二月-2003 | 出版社: | 臺北市:國立臺灣大學醫學工程學研究所 | 摘要: | Swivel walkers enable paraplegic and quadriplegic patients to ambulate without use of their hands. Patients move side to side to lift one footplate and to produce a side thrust, which rolls the swivel walker. Since each footplate is instrumented with a yawing mechanism, the lifting footplate makes the body structure of the walker free to pivot about the other foot bearing axis of the yawing mechanism. Given the situation that the center of mass of the body structure lies anteriorly to the bearing axis, the pivoting moment is attributed to rolling inertial, yawing inertial and the gravitational force. The major disadvantages include slow ambulation, comparative metabolic inefficiency, awkwardness of doffing and donning, and inability to walk on uneven terrain. The purpose of this research is to design a new orthosis, Reciprocating Swivel Gait Orthosis (RSGO), which allows swivel and reciprocating walking at the same time such that the current function of the swivel walker can be ameliorated. The biomechanical analysis of the new orthosis was performed based on a mathematical model. This report contains the mathematical model and design criteria derived from the results of the biomechanical analysis. The biomechanical analysis will lay a solid foundation for the design of the RSGO system, where a rigorous, systematic design can be carried out. 擺盪式(swing through)與交替式(reciprocal)助行矯具為兩種最常提供下肢癱瘓病人助 行的復健器材。其不僅滿足治療上的需求,也提供病人更多的自主性。然而病人在體能 上的消耗卻是使用此類行走輔具最大的限制。現有的研究不斷尋求不同之機電方式做為 解決方案。旋進機制(swivel mechanism)的優點,主要為將側向擺動的機械能,轉化為前 進的動力。本研究深入探討旋進機制,希冀有效地利用機械動力降低病人行走時的能量 消耗。 本研究提出一新式的個人化交替旋進助行矯具(Reciprocating Swivel Gait Orthosis, RSGO)。此新式矯具之上層結構結合定製的膝踝足矯具(KAFO)與一迫使髖關節成為旋 轉中心之機構。其下層結構則包括踏板(shoe plate)和接地板(ground plate)構成之旋轉機 構。預期交替旋進助行矯具將同時改善旋進助行器之速度,以及交替式助行器耗能高的 問題。設計上需透過數學模型的建立、動力學分析、以及電腦模擬等步驟來達成。本報 告提出一個數學模型並由動態分析推導設計基準,為要鋪陳一個堅實的學理基礎,好為 RSGO從事嚴謹之系統化設計。 |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/22380 | 其他識別: | 912614E002004 | Rights: | 國立臺灣大學醫學工程學研究所 |
顯示於: | 醫學工程學研究所 |
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912614E002004.pdf | 80.71 kB | Adobe PDF | 檢視/開啟 |
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