为肢体瘫痪这一重大残障疾病的康复治疗探索一种生物医学工程技术。根据首次提出的针灸结合肌电桥治疗中风偏瘫的新思路,采用小面积体表电极,选取10名健康志愿者(5男5女),通过对每位志愿者上肢216组穴位组合进行功能电刺激,确定控制五...为肢体瘫痪这一重大残障疾病的康复治疗探索一种生物医学工程技术。根据首次提出的针灸结合肌电桥治疗中风偏瘫的新思路,采用小面积体表电极,选取10名健康志愿者(5男5女),通过对每位志愿者上肢216组穴位组合进行功能电刺激,确定控制五指屈动作的最佳刺激穴位组合。实验发现,5对实现五指屈曲的最佳穴位组合,其电流阈值均小于10 m A,指屈动作完成率为100%,舒适率在90%以上,其他指屈无反应率在80%以上。相对于传统在肌肉上进行功能电刺激控制五指指屈的方法,对穴位进行功能电刺激,刺激电流小,动作纯净度更高,刺激位点定位更容易,为进一步开展偏瘫患者以自身健康五指动作带动瘫侧五指动作的临床试验打下基础。展开更多
In this paper,we propose an RLC equivalent circuit model theory which can accurately predict the spectral response and resonance characteristics of metamaterial absorption structures,extend its design,and characterize...In this paper,we propose an RLC equivalent circuit model theory which can accurately predict the spectral response and resonance characteristics of metamaterial absorption structures,extend its design,and characterize the parameters of the model in detail.By employing this model,we conducted computations to characterize the response wavelength and bandwidth of variously sized metamaterial absorbers.A comparative analysis with Finite Difference Time Domain(FDTD)simulations demonstrated a remarkable level of consistency in the results.The designed absorbers were fabricated using micro-nano fabrication processes,and were experimentally tested to demonstrate absorption rates exceeding 90%at a wavelength of 9.28μm.The predicted results are then compared with test results.The comparison reveals good consistency in two aspects of the resonance responses,thereby confirming the rationality and accuracy of this model.展开更多
文摘为肢体瘫痪这一重大残障疾病的康复治疗探索一种生物医学工程技术。根据首次提出的针灸结合肌电桥治疗中风偏瘫的新思路,采用小面积体表电极,选取10名健康志愿者(5男5女),通过对每位志愿者上肢216组穴位组合进行功能电刺激,确定控制五指屈动作的最佳刺激穴位组合。实验发现,5对实现五指屈曲的最佳穴位组合,其电流阈值均小于10 m A,指屈动作完成率为100%,舒适率在90%以上,其他指屈无反应率在80%以上。相对于传统在肌肉上进行功能电刺激控制五指指屈的方法,对穴位进行功能电刺激,刺激电流小,动作纯净度更高,刺激位点定位更容易,为进一步开展偏瘫患者以自身健康五指动作带动瘫侧五指动作的临床试验打下基础。
基金Supported by the National Natural Science Foundation of China(62174092)the Open Fund of State Key Laboratory of Infrared Physics(SITP-NLIST-ZD-2023-04)the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB0580000)。
文摘In this paper,we propose an RLC equivalent circuit model theory which can accurately predict the spectral response and resonance characteristics of metamaterial absorption structures,extend its design,and characterize the parameters of the model in detail.By employing this model,we conducted computations to characterize the response wavelength and bandwidth of variously sized metamaterial absorbers.A comparative analysis with Finite Difference Time Domain(FDTD)simulations demonstrated a remarkable level of consistency in the results.The designed absorbers were fabricated using micro-nano fabrication processes,and were experimentally tested to demonstrate absorption rates exceeding 90%at a wavelength of 9.28μm.The predicted results are then compared with test results.The comparison reveals good consistency in two aspects of the resonance responses,thereby confirming the rationality and accuracy of this model.
