【作者】 王刚；

【导师】 沈为；

【作者基本信息】 东华大学 ， 纺织工程， 2018， 硕士

【摘要】 目前,我国脑卒中患者日益增多,这些患者常常会伴随有偏瘫,产生手功能障碍。在临床的治疗中,及时准确地评定患者手功能状况有助于医生制定合理的康复训练方案,促进患者手功能的恢复。当前患者手功能评定主要是根据手运动功能评价量表等,由医生目测病人的指定动作完成情况,并进行分级,这种方法繁琐,耗时,主观。随着科技的发展,当今的纺织品逐渐趋向智能化,将柔性传感器与纺织品结合起来,可以利用传感器的监测作用和纺织品的轻柔舒适性,为患者的手功能康复提供帮助。在与医护人员与脑卒中患者沟通后,本文尝试开发出一种用于脑卒中患者手功能评定的智能手套,评定指标包括大拇指的对指功能及手指和手腕的屈伸功能。本论文主要开展了以下几方面的工作:(1)从导电性能和可织性两个方面综合考虑,选择了3种规格的镀银锦纶丝来织造柔性传感器,并测试了它们的断裂拉伸性能,含银量,导电性能,耐氧化性能。(2)以镀银锦纶丝作为衬纬纱,衬入纬平针地组织织造了衬纬组织传感器,优化了织造工艺,并利用正交实验设计了9种不同的衬纬组织试样,分析了该传感器的性能以及镀银锦纶丝线密度,衬纬区域长度,衬纬区域行数对其线性度和灵敏度的影响。实验结果表明这种衬纬型传感器不适宜植入手套作为最终的手功能评定用传感器。(3)本文改进柔性传感器组织结构,更换了地组织纱线,调整了织造工艺,将镀银锦纶丝以添纱方式制成针织柔性传感器,并利用正交实验设计了9种不同的添纱组织传感器试样,分析了传感器的性能以及镀银锦纶丝线密度,添纱区域长度,添纱区域行数对其线性度和灵敏度的影响。实验结果表明该传感器的性能优于衬纬组织传感器。(4)本文设计了一种便于脑卒中患者穿戴的开放式半掌手套。在ADF-3电脑横机上,运用针织全成形技术,将镀银锦纶丝添纱结构传感器与手套结合在一起。(5)本文通过电路设计,将指尖掌面处的镀银锦纶添纱组织与导线、灯泡、电源相连,使得病人对指时,对应的灯泡发光,以此来实现评定患者的对指功能。将集成了添纱组织传感器的手套与导线相连,用万用表采集病人手部活动时的电阻变化,可以测得病人手腕的弯曲角度,手指的弯曲程度,还可以通过电阻-时间曲线的波形频率反映病人手部的活动快慢。更多还原

【Abstract】 At present,the stroke patients in our country are increasing day by day.hemiplegia and hand dysfunction always occur in these patients.In clinical treatment,prompt and accurate assessment of the patient’s hand function status can help doctors to develop a reasonable rehabilitation training program,which can promote the recovery of patients’ hand function.Now,the assessment of the patient’s hand function is mainly based on Fugl-Meyer Index and so on.The stroke patients are requested to do the specially action.The rate are given by doctor for the patient’s action.This method is tedious,time-consuming and subjective.With the development of science and technology,textiles are becoming more and more intelligent at present.Combinating flexible sensors and textiles,the evaluation function of sensors and the comfort of textiles can be made full use of.It can provide heip for the rehabilitation of stroke patients’ hand function.After communicating with rehabilitation physicians and stroke patients,the paper attempts to develop an intelligent glove to evaluating hand function of stroke patients,including evaluation of thumb opposition and flexural function of fingers and wrist.The main contents of this paper are as follows:(1)In order to get well electrical conductivity and weaving ability,3 kinds of silverplated filament are selected to knit sensors.And then their tensile properties,silver conten t,electrical conductivity and oxidation resistance are tested.(2)Using silver-plated filament as the inlay thread and polyester high elastic filament as knitted plain,the weft inlay stitch sensor is knitted.Then the paper design 9 kinds of different the weft inlay stitch sensor to analysis what influence the sickness of silver-plated filament,length of weft inlay and number of rows in weft inlay have on the sensors’ function such as linearity,sensitivity and repeatability.By experiment the paper find that the function of this weft inlay stitch sensor is not so good and shouldn’t be knitted into the gloves as the final sensor.(3)In order to improve the performance of the sensor,the structure and yarn of the sensor are changed.The paper used silver-plated filament as plating sticth and design 9 kinds of different the plating sticth stitch sensor to analysis what influence the sickness of silver-plated filament,length of plating sticth and number of rows in plating sticth have on the sensors’ function such as linearity,sensitivity and repeatability.Experimental results show that the plating sticth sensor has better performance than the weft inlay stitch sensor.Therefore,the paper chose the plating sticth sensor to be knitted into the gloves.(4)The paper design a open half palm glove which is more beneficial for the stroke patients to wear.and use 14 pin Stoll ADF-3 computerized flat knitting machine to weave it.Using E14 Stoll ADF-3 computerized flat knitting machine,the sensor and glove are combined by whole garment method.(5)After designing circuit,the paper connect the plating sticth sensor with wires,bulbs,power supply.When the stroke patient’s thumbs touching other fingers,the corresponding bulb glows.Using glow of the blub,we can judge whether the stroke patient’s thumbs can touch other fingers.Connecting the wires and the plating sticth sensor on the glove,we can test the stroke patient’s hand winding by use the digital multimeter to collect the sensor’s resistance data.We can also test their hand’s flexing speed through the frequency of the resistance-time curve.更多还原