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Development of Facial Wearable Robot for Supporting Eye Blink 面部可穿戴式眨眼辅助机器人的研制
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.1T6-3-5-1
Yuta Kozaki, Kenji Suzuki
{"title":"Development of Facial Wearable Robot for Supporting Eye Blink","authors":"Yuta Kozaki, Kenji Suzuki","doi":"10.11239/JSMBE.54ANNUAL.1T6-3-5-1","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.1T6-3-5-1","url":null,"abstract":"Facial paralysis is the loss of voluntary muscle movement on one or both sides of the face inhibits the movement of orbicularis oculus. People with facial paralysis cannot blink which triggers dry eye and it affects the lives of many people. We propose a novel approach for supporting blinking with facial wearable robotic technology. This robot has a novel eyelid gating support mechanism using deformation of elastomer for recreating eye blink, triggered by blink detection on healthy side. We evaluated this system with a healthy participant and indicated the feasibility of eye blink support for people with facial paralysis.","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75470722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rho-kinase inhibitor decreased pulmonary artery resistance, whereas increased compliance in a rat model of pulmonary hypertension 在肺动脉高压大鼠模型中，rho激酶抑制剂降低肺动脉阻力，而增加顺应性
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.1T6-2-2-1
Takuya Nishikawa, K. Saku, Takafumi Sakamoto, Yasuhiro Oga, T. Tohyama, T. Kishi, K. Sunagawa
{"title":"Rho-kinase inhibitor decreased pulmonary artery resistance, whereas increased compliance in a rat model of pulmonary hypertension","authors":"Takuya Nishikawa, K. Saku, Takafumi Sakamoto, Yasuhiro Oga, T. Tohyama, T. Kishi, K. Sunagawa","doi":"10.11239/JSMBE.54ANNUAL.1T6-2-2-1","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.1T6-2-2-1","url":null,"abstract":"Although the dynamic mechanical properties such as arterial compliance (C) have been shown to predict increased mortality in patients with pulmonary arterial hypertension (PAH), a simple static index, i.e., pulmonary arterial resistance (R) has been exclusively used in clinical settings. We examined how a Rho-kinase inhibitor, fasudil, that is known to suppress vasoconstriction, affects pulmonary artery input impedance (Z) in Sugen/Hypoxia (SuHx) PAH in rats. We measured Z before PAH induction (Normal), and re-measured before/after fasudil injection (10 mg/kg) (PAH/Fasudil). PAH increased R while Fasudil decreased R (Normal: 16.3±2.6, PAH: 56.5±6.9, Fasudil: 39.9±5.2 mmHg/ml/sec, p<0.01). In contrast, PAH decreased C while Fasudil increased C (Normal: 3.6±0.6, PAH: 1.8±0.4, Fasudil: 2.5±0.8 ×103 ml/mmHg, p<0.01). We conclude that the pulmonary arterial impedance may serve as a new tool in analyzing vascular mechanics to assess the severity or the drug efficacy in PAH patients.","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90581062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bit-Error-Rate Over-The-Air Testing of Weighted-Polarization BAN Antenna Using an Arm-Swinging Dynamic Phantom 基于摆臂动态模体的加权极化BAN天线空中误码率测试
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.1OS4-3-5-1
K. Honda, K. Murata, Kun Li, K. Ogawa, Y. Koyanagi, Hiroshi Sato, Ritsu Miura
{"title":"Bit-Error-Rate Over-The-Air Testing of Weighted-Polarization BAN Antenna Using an Arm-Swinging Dynamic Phantom","authors":"K. Honda, K. Murata, Kun Li, K. Ogawa, Y. Koyanagi, Hiroshi Sato, Ritsu Miura","doi":"10.11239/JSMBE.54ANNUAL.1OS4-3-5-1","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.1OS4-3-5-1","url":null,"abstract":"In healthcare data radio system, it is essential to avoid the communication disconnection when the transmission signal bit error rate (BER) exceeds a specific value. When the BAN antenna is attached at wrist, the polarization characteristics will be varied significantly according to the antenna rotation angle caused by the arm-swing motion. In this paper, the BER characteristic of a weighted-polarization BAN antenna considering human walking motion is measured while the validity of the proposed antenna is verified. At first, a method of BER Over-The-Air (OTA) Testing is proposed, where a fading emulator is utilized for realizing the actual propagation environment. Then, the BER measurement is carried out in considerations of the arm-swing motion using a human phantom. Compared with the conventional antenna, less SNR is required when the weighted-polarization BAN antenna is used to obtain the desired BER, indicating the effectiveness of proposed weighted-polarization antenna for BAN wireless applications.","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83389417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation of muscle stiffness during one cycle of pedaling exercises using system identification 用系统识别法估计一个周期内的踏板运动肌肉僵硬度
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.P2-C06-1
Kaito Saito, T. Uchiyama
{"title":"Estimation of muscle stiffness during one cycle of pedaling exercises using system identification","authors":"Kaito Saito, T. Uchiyama","doi":"10.11239/JSMBE.54ANNUAL.P2-C06-1","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.P2-C06-1","url":null,"abstract":"The aim of this study was to evaluate muscle stiffness during one cycle of pedaling exercises. Electrical stimulation was applied to the vastus lateralis muscle at various clank angles in a resting state and during pedaling exercises. The angles were -30°, +30°, and +90°. The angle of 0° corresponds to top center of the pedal, and the clockwise direction is positive. A mechanomyogram (MMG) was measured with a capacitor microphone. The MMG system was identified using a singular value decomposition method and the poles of the transfer function were calculated. The poles and mass of the vastus lateralis muscle were used to estimate the muscle stiffness. The muscle stiffness increased as the muscle activity increased. In conclusion, it was suggested that muscle stiffness during pedaling exercises changes depending on muscle activity.","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78707189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Relation between the thigh-calf contact force and the posture of an upper body at squatting 深蹲时大腿-小腿接触力与上半身姿势的关系
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.1T6-3-4-1
Michihiko Fukunaga, Fumiya Ayaka, K. Morimoto
{"title":"Relation between the thigh-calf contact force and the posture of an upper body at squatting","authors":"Michihiko Fukunaga, Fumiya Ayaka, K. Morimoto","doi":"10.11239/JSMBE.54ANNUAL.1T6-3-4-1","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.1T6-3-4-1","url":null,"abstract":"It is important to consider the thigh-calf contact force to analyze the kinetics of a lower limb during deep knee flexion, however, the measured forces have varied very much and difficult to understand systematically. In this study, we considered that the thigh-calf contact force might be estimated by considering not only the individual difference but also the joint angles or the posture of an upper body, and measured the forces and introduced the estimating equation. The test subjects were 6 healthy male, and measured the joint angles and thigh-calf contact force, and performed a multiple regression analysis. As a result, equations to estimate thigh-calf contact force using joint angles and the individual parameter were introduced. The average error of estimation was 0.11BW and the maximum was 0.33BW. It was clearly indicated that the postures of the upper body effected to the thigh-calf contact force.","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84408183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of intra-operative ultrasound navigation system for laparoscopic liver surgery 腹腔镜肝脏手术术中超声导航系统的研制
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.3T4-3-1-1
S. Onogi, T. Ikeda, J. Arata, Susumu Oguri, R. Nakadate, T. Akahoshi, M. Mitsuishi, M. Hashizume
{"title":"Development of intra-operative ultrasound navigation system for laparoscopic liver surgery","authors":"S. Onogi, T. Ikeda, J. Arata, Susumu Oguri, R. Nakadate, T. Akahoshi, M. Mitsuishi, M. Hashizume","doi":"10.11239/JSMBE.54ANNUAL.3T4-3-1-1","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.3T4-3-1-1","url":null,"abstract":"","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86513114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of an EMG measuring system aiming to control upper limb orthosis with reduced discriminant error rate 用于控制上肢矫形器的肌电测量系统的研制
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54.145
Haruki Ishii, A. Hanafusa, Tomohiko Shimizu, K. Ohnishi
{"title":"Development of an EMG measuring system aiming to control upper limb orthosis with reduced discriminant error rate","authors":"Haruki Ishii, A. Hanafusa, Tomohiko Shimizu, K. Ohnishi","doi":"10.11239/JSMBE.54.145","DOIUrl":"https://doi.org/10.11239/JSMBE.54.145","url":null,"abstract":"","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89161663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of an infant-friendly flat-panel earphone for non-invasive functional brain imaging on awake babies using cartilage conduction 一种婴儿友好型平板耳机的开发，用于使用软骨传导对清醒婴儿进行无创功能性脑成像
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.P2-A07-1
S. Nakagawa, T. Imada, H. Hosoi, A. Meltzoff, P. Kuhl
{"title":"Development of an infant-friendly flat-panel earphone for non-invasive functional brain imaging on awake babies using cartilage conduction","authors":"S. Nakagawa, T. Imada, H. Hosoi, A. Meltzoff, P. Kuhl","doi":"10.11239/JSMBE.54ANNUAL.P2-A07-1","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.P2-A07-1","url":null,"abstract":"An infant-friendly earphone using the cartilage conduction for non-invasive functional brain imaging was developed. The earphone was composed of a piezoelectric vibrator that is firmly glued to a flat round brass panel, with a diameter of 35 mm, to amplify the vibration. The earphone can be attached to the baby head cap, and just mildly touched to baby's pinna. Since sounds are conveyed via both airand bone-conduction (mainly osseotympanic emission) pathways by the earphone, the enhancement of low frequency component is expected by the occlusion of the ear canal. Clear auditory evoked MEG responses were obtained from awake babies (6-month-old and 8-month-old) as well as adults, using our first prototype flat-panel earphone. Also, the babies did not dislike to wear the developed earphone at all. The earphone enables an experiment of dichotic listening that was quite difficult for awake babies.","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85632852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Significance and Strategy in the Foundation of Department for Bio-Medical Engineering in Japan 日本建立生物医学工程系的意义与对策
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.S164
M. Hashizume, K. Ikuta, H. Imachi, Kouichi Shimizu, I. Sakuma, K. Sunagawa, K. Ishihara, A. Hanafusa
{"title":"Significance and Strategy in the Foundation of Department for Bio-Medical Engineering in Japan","authors":"M. Hashizume, K. Ikuta, H. Imachi, Kouichi Shimizu, I. Sakuma, K. Sunagawa, K. Ishihara, A. Hanafusa","doi":"10.11239/JSMBE.54ANNUAL.S164","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.S164","url":null,"abstract":"","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87774485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of Skeletal Muscle Contraction during Pedaling of Recumbent Bicycle using MMG / EMG Hybrid Transducer 用肌电/肌电混合传感器评价平卧自行车蹬踏时骨骼肌收缩
Transactions of Japanese Society for Medical and Biological Engineering Pub Date : 2016-01-01 DOI: 10.11239/JSMBE.54ANNUAL.P2-C04-1
Shinichi Fukuhara, Takeshi Fujinaga, Shogo Watanabe, H. Oka
{"title":"Evaluation of Skeletal Muscle Contraction during Pedaling of Recumbent Bicycle using MMG / EMG Hybrid Transducer","authors":"Shinichi Fukuhara, Takeshi Fujinaga, Shogo Watanabe, H. Oka","doi":"10.11239/JSMBE.54ANNUAL.P2-C04-1","DOIUrl":"https://doi.org/10.11239/JSMBE.54ANNUAL.P2-C04-1","url":null,"abstract":"Electromyogram (EMG) is recorded electrical muscle contraction, mechanomyogram (MMG) indicates cross-sectional area change of muscle, reflect mechanical muscle contraction. By simultaneously measuring both signals, it is possible to multifaceted evaluation of muscle contraction. However, MMG measurement at voluntary movement was difficult. Therefore, the authors developed MMG / EMG hybrid transducer capable of simultaneous measurement of MMG and EMG. This study evaluated MMG and EMG of rectus femoris (RF) and hamstrings using recumbent bicycle of easy load regulation. As result, dMMGbase (baseline of displacement MMG) indicated cross-sectional area change of muscle at pushing down and pulling up of pedal. In addition, EMG and dMMGbase increased with pushing down of pedal in RF, dMMGacc (acceleration dMMGbase) showing muscle contraction force was output simultaneously. Each signal of hamstrings had output that antagonize RF. By simultaneously measuring MMG and EMG at recumbent bicycle pedaling, it was possible to evaluate muscle contraction of voluntary movement.","PeriodicalId":39233,"journal":{"name":"Transactions of Japanese Society for Medical and Biological Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89526686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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