| Dynamical Measurement Method of Handle Reaction Vector for FES-Assisted Paraplegic Walking |
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| 作者姓名： | 明东 万柏坤 胡勇 王以忠 吴英华 梁智仁 |
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| 作者单位： | [1]School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China [2]Department of Orthopaedic Stlrgery, Hong Kong University, Hong Kong, China [3]College of Information and Automation, Tianjin Lniversit） of Science and Technology, Tianjin 300222, China [4]Department of Traumatology Orthopaedics, Tianjin Hospital, Tianjin 300211, China |
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| 基金项目： | Supported by China Postdoctoral Science Foundation（ No. 2004036135） and Tianjin Key Project Fund（ No. 2000-31 ）. |
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| 摘 要： | 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.
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| 关 键 词： | 瘫痪病人 行走帮助工具 电子刺激 扶手 康复工程 |
| 收稿时间： | 2005-04-22 |
Dynamical Measurement Method of Handle Reaction Vector for FES-Assisted Paraplegic Walking |
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| MING Dong,WAN Baikun,HU Yong,WANG Yizhong,WU Yinghua,LIANG Zhiren.Dynamical Measurement Method of Handle Reaction Vector for FES-Assisted Paraplegic Walking[J].Transactions of Tianjin University,2005,11(5):318-321. |
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| Authors: | MING Dong WAN Baikun HU Yong WANG Yizhong WU Yinghua LIANG Zhiren |
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| Abstract: | 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) ap- plied by patient to walker was proposed. To avoid the discomfort of direct monitoring, the dyna- mometer 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 distri- butions 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 calibra- tion. The measurement accuracy, nonlinearity. and crosstalk of the designed system were investi- gated, 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 mea- surement. All experiment and clinical trial results show that this method is reliable and practicable. |
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| Keywords: | paraplegic walking functional electrical stimulation handle reaction vector walker |
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