Capsule microrobot for targeting in medical diagnostic treatment

Koga, Hiromichi; Sakata, Yasuhiro; Hirose, Shohei; Konishi, Satoshi

doi:10.1109/transducers.2011.5969392

Cited by 7 publications

(2 citation statements)

References 6 publications

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“…Koga et al proposed a microrobot with pasting and drug injection functions. This microrobot is driven by air pressure, and an air sac on its surface expands and pushes its surface toward the inner wall of the intestine to drive an integrated ejector to release drugs [8].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of a Magnetically Driven Microrobot for Targeted Drug Delivery

Cai

Zhang

et al. 2021

Micromachines

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Given that the current microrobot cannot achieve fixed-point and quantitative drug application in the gastrointestinal (GI) tract, a targeted drug delivery microrobot is proposed, and its principle and characteristics are studied. Through the control of an external magnetic field, it can actively move to the affected area to realize the targeted drug delivery function. The microrobot has a cam structure connected with a radially magnetized permanent magnet, which can realize two movement modes: movement and targeted drug delivery. Firstly, the magnetic actuated capsule microrobotic system (MACMS) is analyzed. Secondly, the dynamic model and quantitative drug delivery model of the targeted drug delivery microrobot driven by the spiral jet structure are established, and the motion characteristics of the targeted drug delivery microrobot are simulated and analyzed by the method of Computational Fluid Dynamics (CFD). Finally, the whole process of the targeted drug delivery task of the microrobot is simulated. The results show that the targeted drug delivery microrobot can realize basic movements such as forward, backward, fixed-point parking and drug delivery through external magnetic field control, which lays the foundation for gastrointestinal diagnosis and treatment.

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Section: Introductionmentioning

confidence: 99%

Performance Evaluation of a Magnetically Driven Microrobot for Targeted Drug Delivery

Cai

Zhang

et al. 2021

Micromachines

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“…A microdevice working in a remote place has been widely investigated for applications such as sensor nodes called "smart dust", [1][2][3][4][5] a sensor 6) and a microrobot 7) in a vacuum chamber, an endoscope, [8][9][10][11][12] and a biomedical implant. [13][14][15] To operate these microdevices, power feed and signal transmission are necessary.…”

Section: Introductionmentioning

confidence: 99%

Discharging-phototransistor-integrated high-voltage Si photovoltaic cells for fast driving demonstration of an electrostatic MEMS actuator by wavelength modulation

Mori

Lebrasseur

Mita

2016

Jpn. J. Appl. Phys.

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In this article, the authors propose a high-voltage photovoltaic (PV) cell array integrating discharging phototransistors for the fast driving of an electrostatic MEMS actuator by light with wavelength modulation. A PV cell array and phototransistors are connected in parallel and colored with green and red lacquer, respectively. This circuit repeats the charge and discharge of a MEMS actuator by being illuminated with light whose color periodically changes between red and green. This method requires only a small additional area and can discharge the actuator at an arbitrary timing. The authors extract the parameters of the circuit and also demonstrate the dynamic driving of a MEMS comb-drive actuator.

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Freestanding electrostatic scratch drive microstructures using lamination of photosensitive films for microfluidics and microrobotics applications

Chen

Zhang

et al. 2017

Microsyst Technol

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Capsule microrobot for targeting in medical diagnostic treatment

Cited by 7 publications

References 6 publications

Performance Evaluation of a Magnetically Driven Microrobot for Targeted Drug Delivery

Performance Evaluation of a Magnetically Driven Microrobot for Targeted Drug Delivery

Discharging-phototransistor-integrated high-voltage Si photovoltaic cells for fast driving demonstration of an electrostatic MEMS actuator by wavelength modulation

Freestanding electrostatic scratch drive microstructures using lamination of photosensitive films for microfluidics and microrobotics applications

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