Dynamical Measurement Method of Handle Reaction Vector for FES-Assisted Paraplegic Walking

To analyze the use of upper limb support during paraplegic walking assisted by functional electrical stimulation （ FES）. a new dynamical measurement for handle reaction vector （HRV） applied by patient to walker was proposed. To avoid the discomfort of direct monitoring, the dynamometer system was designed based on 12 string-gauge bridges instrumented on a standard walker frame. The detailed positions of these bridges were determined according to the deformation distributions of the walker frame under different directional components of HRV. To adapt the system to quantitative and reliable measurement, a redundant-optimized technique was developed in calibration. The measurement accuracy, nonlinearity, and crosstalk of the designed system were investigated, which were better than 1.01%. 2.91%. and 3. 19% respectively. Clinical trials were done with 6 paraplegic subjects using the system and one case was given as the example of actual measurement. All experiment and clinical trial results show that this method is reliable and practicable.     

动物也会物理学

<正>蜘蛛的液压腿如果切开蜘蛛的腿,你就会发现里面是没有肌肉的,而只有一些液体。蜘蛛能使其中的液体压力剧增或锐减,靠液压传动。如果有什么猎物自投罗网的话,蜘蛛会通过调节腿里液体的压强,驱动8条腿快速地动作起来,立即赶到现场,美美地饱餐一顿。现在,人们模仿蜘蛛腿制造了步行机,为瘫痪病人造出了新式的车椅;如果搞清楚了蜘蛛腿的调压原理,还可帮助人们寻找到一种调节人体血压     

住院不停笔 报道创佳绩

本报讯报道：日前，济南军区某机步旅炮团榴炮营爆出一条新闻：入院一年的病号鄂瑞伟，因为新闻报道工作成绩突出荣立三等功。战士鄂瑞伟是榴炮营的报道员。一年前，因为一种叫做格林——巴利综合症的怪病使他住进了解放军驻平顶山某医院。住院后，他不但没有自暴自弃，反而更加坚强。在两腿瘫痪下不了床的情况下，他仍然履行自己一名报道员的职责，坚持采写新闻。一次为了报道战友郑大壮的新闻，他先后７次打电话到营里采访，坐病床连续加４个夜班，写出了兵说兵事《郑大壮学英语》，且很快就在军报见稿了。住院一年，他通过自己的努力奋斗…