The swimming of the POD: Theoretical analysis and experimental results

Lavie, Anat

doi:10.1109/tmag.1970.1066809

Cited by 23 publications

(9 citation statements)

References 2 publications

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“…The devices are applied in blood-ow measurement, driving a medical catheter and medical surgery. In particular, a power-operated device (POD) for towing a medical catheter has been studied as a magnetic swimming mechanism [2]. The POD is composed of a cylindrical magnet and an elastic n. By applying an alternating magnetic eld, the POD generates a bending wave that passes along the n, allowing the POD to swim in one direction.…”

Section: Introductionmentioning

confidence: 99%

Spiral-type micro-machine for medical applications

Ishiyama¹,

Yamazaki²,

Arai³

et al. 2002

Journal of Micromechatronics

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Spiral-type magnetic micro-machines, which are driven by a rotating magnetic eld, are characterized by their wireless operation for swimming. The machines have to swim in a lower Reynolds number (Re) environment, when the machines are downsized, and work inside the human body. In this study, using various silicone oils whose kinematic viscosity ranged from 500 to 5 £ 10 5 mm 2 /s, the swimming performance of the machine in an environment characterized by a low Reynolds number was examined. The machine, with a cylindrical NdFeB magnet as main component, could swim in the oils with Re D 10 ¡7 . This Reynolds number is same as that of a micro-machine with micron size swimming in the water. In addition, the machine could turn by controlling the external rotational magnetic eld, therefore the swimming direction of the machine could be controlled. Using these principles, a magnetic micro-machine, which can run in a gel, was also fabricated.

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Section: Introductionmentioning

confidence: 99%

Spiral-type micro-machine for medical applications

Ishiyama¹,

Yamazaki²,

Arai³

et al. 2002

Journal of Micromechatronics

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“…However, studies on swimming over the past two decades have paid very little attention to these issues. In relation to the level of high sports achievements, there is an increased interest of specialists and athletes to the issues of providing technologies for sports improvement [1,2,3,4,5,6], an expanded search for reserves to improve results in competitions of different levels [7,8,9,10] at different distances of sports swimming [11,12,13,14,15,16,17].…”

Section: Literature Reviewmentioning

confidence: 99%

Optimization of Competitiveness in Sports Swimming

Kubeev¹,

Mochalova²,

Gonzalez³

2019

Proceedings of the First International Volga Region Conference on Economics, Humanities and Sports (FICEHS 2019)

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Researching the materials of official protocols of four world swimming championships over a period of 2013-2019 provided grounds for optimization of competitiveness quantitative and qualitative criteria in sports swimming. The method is offered concerning the differentiation of athletes' general sample pattern structure by each swimming specialization. The unequal density of sports results in the ranges of linear and non-linear distribution is determined, which affects the quality of the results analysis in swimming. The highest density of the results distribution function, with the corresponding number of high-level athletes, regarding sports and technical readiness, is the optimizing factor of their high competitiveness in sports contests. The optimal algorithm of calculating parameters of results distribution and quantitative structure of various samples of athletes of each swimming specialization is developed and tested. The implementation of an integrated approach to optimizing the analysis of the distribution function generates a more accurate forecast of results in various disciplines of swimming based on the application of standard criteria.

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“…When proper phase difference appears between heaving and feathering, the fin generates an effective force. The propulsive force is the sum of drag force vectors to the moving direction in equation (1). It can be known that adjusting the frequency of the input current can control the moving speed of the microrobot.…”

Section: B Motion Mechanismmentioning

confidence: 99%

“…Microrobot can restrict their work to affected part or the breakdown spot and do not give unnecessary influence on their surroundings. In the medical field and in industry application, a new type of microrobot in pipe has urgently been demanded [1] - [3]. The microrobot is one of the micro and miniature devices, which is installed with sensing and actuating elements.…”

Section: Introductionmentioning

confidence: 99%

Design and Control of a Novel Type of Microrobot Moving in Pipe

Guo

Pan

2006

2006 International Conference on Mechatronics and Automation

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In this paper, to realize practical micromachines using fluid power with high power density. It is our purpose to develop motion control system to manipulate a wireless microrobot which can perform in blood vessel by using magnetic field from out of human body. Base on this purpose, a new novel type moving microrobot in pipe has been designed and introduced in this paper. The model microrobot utilizes electromagnetic actuator as the servo actuator to realize moving motion for biomedical application. We discuss the structure, motion mechanism and characteristic evaluation of a driving fin which be in charge of propulsion. The fin moving like fish can be controlled by the frequency adjustment of the alternate magnetic field. The microrobot can be stopped at the place where we want in vertical direction. Experimental results indicate that the microrobot can be controlled upward, downward and also suspend in water by frequency adjustment. The developed microrobot has characteristics of quick response, can correspond to the dirt adhering to the inner wall. To sum up, it will play an important part in industrial application and microsurgery.

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The swimming of the POD: Theoretical analysis and experimental results

Cited by 23 publications

References 2 publications

Spiral-type micro-machine for medical applications

Spiral-type micro-machine for medical applications

Optimization of Competitiveness in Sports Swimming

Design and Control of a Novel Type of Microrobot Moving in Pipe

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