假肢适配重心对线技术的研究

An Alignment Technique of Body Gravity for Fit of Prosthesis

目的提出一种基于人体重心变化的对线技术。方法利用重力传感器测取人体重力数据;根据平衡力学体系合力为0,由专用软件计算出人体重心的实时位置;通过串口通讯将重心的实时位置传输给控制单元,控制单元将实时位置的横坐标转换成电机的驱动脉冲信号,驱动与电机相连的装有激光器滑台进行重心跟随运动,从而可以根据重心的变化进行精确的对线。同时加入人体平衡功能检测,对假肢对线起辅助判断作用。结果和结论开发出通过检测人体重心位置的对线方法,可用于假肢矫形康复领域。

Objective To develop an alignment technique based on the movement of body gravity center. Methods As join forces in the system of balance is zero, the position of body gravity center can be calculated by body gravity which is taken from weight sensors, by the special software. Meanwhile, the position of body gravity will be sent to control unit, which can be transformed to driving signal of motor. The sliding table with laser, linked to motor, can make pursuit movement following with body gravity. A precise alignment can be made as the movement of body gravity. The balance function test is also used to make an assistant estimate for the alignment. Results and Conclu-sion An alignment technique has been developed for the fit of prosthesis and orthotics.