研究者詳細 - 髙嶋　一登

論文 - 髙嶋　一登

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Perspective of Development for PVA-H Custom-made Blood Vessel Models 招待有り査読有り

Y. Shimizu, S. Tupin, K. Yu, R. Nagano, C. Kiyomitsu, H. Yoshida, T. Matsunaga, J. Kuzusako, N. Kihara, K. Takashima, Y. Haga, M. Ohta

Fifteenth International Conference on Flow Dynamics (ICFD2018) 624 - 625 2018年11月

Evaluation of error and sensitivity for force sensor using shape-memory polymer 査読有り

K. Takashima, R. Onoda, T. Mukai

Proceedings of SICE Annual Conference 2018 1433 - 1438 2018年09月

担当区分：責任著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Japan Nara 2018年09月11日 - 2018年09月14日

Robotic technology is being increasingly used in a variety of fields, including not only manufacturing, but also nursing and welfare. Applications of robotic technology in nursing and welfare require the measurement of a wide range of forces in order to grasp and lift objects accurately in different operating environments. In light of this, we have developed a force sensor that uses a shape-memory polymer (SMP) whose stiffness varies with temperature. The relationship between the applied force and the deformation of the SMP changes depending on the temperature, which allows the measurement range and sensitivity to be changed with temperature. Our sensor, which consists of strain gauges bonded to an SMP beam, senses the applied force by measuring the strain in the SMP as it bends. In the present study, four SMP force sensors with different numbers of strain gauges and steel plates were fabricated, and their accuracy and sensitivity were evaluated. Experiments using the prototypes demonstrated that the sensor with one steel plate had a small error and a large sensitivity range.

DOI： 10.23919/SICE.2018.8492564

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85056691735&origin=inward

バイオエンジニアリング部門：「脳神経血管内治療に関する医工学連携研究会（A-TS02-16）」の紹介招待有り

太田信,高嶋一登

日本機械学会誌 ( 日本機械学会 ) 121 ( 1197 ) 28 - 29 2018年08月

血管内治療デバイス留置過程の定量的分析招待有り査読有り

高嶋一登

日本機械学会誌 ( 日本機械学会 ) 121 ( 1197 ) 31 - 31 2018年08月

Evaluation of the effect of catheter on the guidewire motion in a blood vessel model by physical and numerical simulations 査読有り

TAKASHIMA Kazuto, OIKE Atomu, YOSHINAKA Kiyoshi, YU Kaihong, OHTA Makoto, MORI Koji, TOMA Naoki

Journal of Biomechanical Science and Engineering 12 ( 4 ) Article ID: 17-00181 (13pp) 2017年08月

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

Various catheter simulators using a computer or blood vessel biomodels have been developed for training of medical students and young physicians. Moreover, we have developed a system to simulate a guidewire in blood vessels that uses both numerical analysis and experimental observation for the quantitative analysis of treatment technique, surgical planning, intra-operative assistance, and to facilitate the design of new guidewires. However, not limited to our group, there is a lack of studies evaluating the motions of both the guidewire and catheter and their interaction in a blood vessel. Therefore, in the present study, we modified our computer-based system and experimental apparatus to evaluate the catheter motion and compared both results. First, we added a mechanism to the experimental apparatus to move and evaluate the catheter in a poly (vinyl alcohol) hydrogel blood vessel model. Second, we added a new catheter model to the calculation. We subsequently evaluated the behaviors of the medical devices (the guidewire and the catheter) by measuring the three-dimensional position and the contact force between the medical devices and the vessel wall. Comparison of the calculation and experimental results showed that the trajectories and the contact forces of both the experimental and numerically analyzed medical devices had the same tendencies. By considering the flexibility of the catheter in both the experimental and numerical analysis methods, we could reproduce the phenomena seen in clinical situations, such as movement of the catheter during the insertion or removal of the guidewire, and movement of the guidewire during the insertion of the catheter.

DOI： 10.1299/jbse.17-00181

A study of the relationship between the microcatheter shape and stability by numerical simulation 査読有り

N. Toma, K. Mori, K. Takashima, T. Sano, Y. Umeda, H. Suzuki, T. Saito

Journal of Neuroendovascular Therapy ( 特定非営利活動法人日本脳神経血管内治療学会 ) 11 ( 7 ) 333 - 340 2017年07月

記述言語：英語掲載種別：研究論文（学術雑誌）

Objective: The stability of the microcatheter is important in safe coil deployment. However, quantitative information regarding the relationship between the microcatheter shape and stability is limited. We investigated deformation characteristics of the microcatheter by applying loads to the tip of a placed microcatheter using numerical analysis.Materials and Methods: Microcatheter models were prepared by connecting cylindrical rigid segments with coil springs. Four types of models with shapes mimicking parts of a blood vessel and three types of models with shapes that come into contact with the vascular wall on the opposite side of the aneurysm were prepared.Results: When the distance between the tip of the microcatheter and the position of its contact with the vascular wall exceeded 12 mm, the suppressive effect on displacement of the microcatheter tip was markedly reduced. When this distance was less than 6 mm, the microcatheter shape exerted a greater effect on the stability than the distance.Conclusion: These results suggest that not only the position of contact of the microcatheter with the vascular wall but also the shape of the microcatheter near the aneurysm plays an important role in securing the stability.

DOI： 10.5797/jnet.oa.2016-0094

CiNii Article

CiNii Research

その他リンク： https://www.jstage.jst.go.jp/article/jnet/11/7/11_oa.2016-0094/_pdf

Force sensor utilizing stiffness change of shape-memory polymer based on temperature 査読有り国際誌

K. Takashima, H. Kamizono, M. Takenaka, T. Mukai

ROBOMECH Journal 4 ( 1 ) Article:17 (8pp) 2017年06月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

In this study, we propose a force sensor using a shape-memory polymer (SMP) whose stiffness varies according to the temperature. An SMP can be deformed above its glass transition temperature (Tg) by applying a small load. A deformed SMP maintains its shape when cooled below Tg and returns to its predefined shape when subsequently heated above Tg. The reversible change in the elastic modulus between the glassy and rubbery states of an SMP can be on the order of several hundred-fold. The relationship between the applied force and the deformation of the SMP changes depending on the temperature. Our sensor consists of strain gauges bonded to an SMP bending beam and senses the applied force by measuring the strain. Therefore, the force measuring range and the sensitivity can be changed according to the temperature. In this study, we evaluate a prototype of the sensor using the SMP sheet with embedded electrical heating wire. Moreover, we improve the sensor by combining the SMP and a stainless steel plate. The enhanced versatility of SMP force sensors is demonstrated through a series of experiments conducted using the prototype.

DOI： 10.1186/s40648-017-0086-2

Kyutacar

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85042637412&origin=inward

圧電ポリマーを用いた携帯式薄板型センサによる表面形状測定査読有り

竹中慎,高嶋一登

日本ロボット学会誌 ( 一般社団法人日本ロボット学会 ) 34 ( 9 ) 640 - 651 2016年11月

記述言語：日本語掲載種別：研究論文（学術雑誌）

For the quality-check process of manufacturing, skilled workers often use their sense of touch for inspections. However, this method is non-quantitative and depends on the experience of the workers. Therefore, a measurement device that can acquire quantitative surface profile data more easily than existing equipment is required. In our previous study, we prototyped a cantilever structured thin plate tactile sensor, with an attached piezoelectric polymer film as a strain detector, and showed that this sensor can evaluate uneven surface profiles. However, these measurements were performed by moving the tactile sensor with an automatic linear stage. To make the measurement tasks at an actual work site easier, an operator must be able to choose any target surface and evaluate that surface without troublesome settings and jigs. Therefore, in this study, we prototyped a portable, manually operated tactile sensor system comprising two thin plate tactile sensors. We showed that this prototype sensor system can estimate the amount of sensor movement during measurements by calculating the time lag between two sensor signals. Using the estimated amount of movement, this sensor system can evaluate uneven surface profiles easily and quickly.

DOI： 10.7210/jrsj.34.640

CiNii Article

CiNii Research

その他リンク： https://www.jstage.jst.go.jp/article/jrsj/34/9/34_34_640/_pdf

Portable tactile sensor system for evaluating uneven surfaces 査読有り

M. Takenaka, K. Takashima

The 8th Asian-Pacific Conference on Biomechanics (AP Biomech 2015) 352 - 352 2015年09月

圧電ポリマーを用いた薄板型触覚センサの検討－凹凸面評価に関する基礎検討－査読有り

竹中慎,平見健一,高嶋一登

日本ロボット学会誌 32 ( 10 ) 903 - 913 2014年12月

Numerical analysis and experimental observation of guidewire motion in a blood vessel model 査読有り

K. Takashima, S. Tsuzuki, A. Ooike, K. Yoshinaka, K. Yu, M. Ohta, K. Mori

Medical Engineering and Physics 36 1672 - 1683 2014年11月

Pneumatic artificial rubber muscle using shape-memory polymer sheet with embedded electrical heating wire 査読有り

K. Takashima, K. Sugitani, N. Morimoto, S. Sakaguchi, T. Noritsugu, T. Mukai

Smart Materials and Structures 23 ( 12 ) 125005 (9pp) 2014年10月

Thermal response of novel shape memory polymer-shape memory alloy hybrids 査読有り

J. Rossiter, K. Takashima, T. Mukai

Proceedings of SPIE: Behavior and Mechanics of Multifunctional Materials and Composites 9058 8 pages 2014年03月

Shape memory polymer hexachiral auxetic structures with tunable stiffness 査読有り

J. Rossiter, K. Takashima, F. Scarpa, P. Walters, T. Mukai

Smart Materials and Structures 23 ( 4 ) 045007 (11pp) 2014年02月

触覚センサを用いた生体触診の技術動向招待有り査読有り

高嶋一登

トライボロジスト ( 日本トライボロジー学会 ) 58 ( 4 ) 269 - 274 2013年04月

Fundamental study on medical tactile sensor composed of organic ferroelectrics 査読有り

K. Takashima, S. Horie, M. Takenaka, T. Mukai, K. Ishida, Y. Ueda

Fifth International Conference on Emerging Trends in Engineering and Technology (ICETET-12) 132 - 136 2012年11月

Measurement of the piezoelectric properties of vinylidene fluoride oligomer using pneumatic pressure for tactile sensors 査読有り

K. Takashima, S. Horie, M. Takenaka, T. Mukai, K. Ishida, Y. Ueda

Journal of Solid Mechanics and Materials Engineering 6 ( 10 ) 975 - 988 2012年10月

基質伸展下の内皮細胞底面における変位場の微視的解析査読有り

高嶋一登,山田宏

日本バイオレオロジー学会誌 26 ( 3 ) 109 - 112 2012年10月

Shape memory properties of ionic polymer-metal composites 査読有り

J. Rossiter, K. Takashima, T. Mukai

Smart Materials and Structures 21 ( 11 ) 1 - 7 2012年09月

医療・介護ロボット分野における有機センサの可能性―触覚センサを中心として―

高嶋一登,堀江聡,石田謙司,上田裕清,竹中慎,向井利春

応用物理学会　有機分子・バイオエレクトロニクス分科会会誌 ( 応用物理学会　有機分子・バイオエレクトロニクス分科会 ) 23 ( 3 ) 169 - 174 2012年07月

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