Untethered microrobots for minimally invasive removal of blood clots DOI

Zhicheng Ye,

Ben Wang

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 265 - 286

Published: Nov. 1, 2024

Language: Английский

An Ultra‐Fast Rolling Double‐Helical Robot Driven by Constant Humidity DOI Creative Commons
Chuhan Xu, Jiayao Ma,

Lei Fu

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Untethered soft robots made of stimuli-responsive materials hold great application potential in various fields. However, most this type require artificial modulation the stimuli to actuate, while it is a challenge achieve fast periodic locomotion under constant external environment. Here, double-helical robot constructed with humidity-sensitive agarose (AG) films, referred as Dualicalbot proposed, which can rapidly roll humid environment by making two helices alternately bend absorbing humidity actuate half-cycles. A theoretical model built unveil deformation well correlation between design parameters and motion speed, based on reach maximum rolling speed 5.8 BL s-1. Moreover, capable carrying payload up 100% self-weight detecting acid rolls through. This work envisaged, more generally structural modeling principle, will open new avenue for development advanced robotics diverse functionalities.

Language: Английский

Citations

0

A multifunctional magnetic miniature truck robot for cargo loading and unloading DOI Creative Commons
Yuanhe Chen, Zichen Xu, Qingsong Xu

et al.

Cell Reports Physical Science, Journal Year: 2024, Volume and Issue: 5(7), P. 102059 - 102059

Published: June 17, 2024

Untethered miniature robots, which can be used in applications ranging from cargo delivery to biopsy, demonstrate stunning performance gastrointestinal (GI) tract treatment. The environmental terrains within the GI are complex and challenging for robots of limited size pass through, where tissue mucus winding surfaces tend hinder robot movement. Herein, we report a multifunctional magnetic truck (MMTR) that generates sufficient propulsion force resist external interactions. Its mechanical structure is optimized integrating multiple functions, including climbing over obstacles, controlled drug dispersion, release. Using programmed field, MMTR accomplishes transport smaller-sized by carrying them, allowing traversal tortuous, branching, restricted environments through adaptive morphology transformations. introduced truck-unloading approach enables unload, detach, retrieve sub-robots, demonstrating significant potential targeted transport.

Language: Английский

Citations

2

Empowering Tomorrow's Medicine: Energy-Driven Micro/Nano-Robots Redefining Biomedical Applications DOI
Subham Preetam, Pingal Pritam, Richa Mishra

et al.

Molecular Systems Design & Engineering, Journal Year: 2024, Volume and Issue: 9(9), P. 892 - 911

Published: Jan. 1, 2024

Application of micro/nano-robots in the bio-medical sector.

Language: Английский

Citations

2

Review of Human–Robot Collaboration in Robotic Surgery DOI Creative Commons

Qianyi Wan,

Yudong Shi,

Xilin Xiao

et al.

Advanced Intelligent Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Human–robot collaboration (HRC) technology has emerged as a pivotal innovation in robotic surgery, significantly augmenting surgeons’ capabilities and enhancing the precision, safety, efficacy of surgical procedures. This been widely adopted across various disciplines, including general cardiothoracic urology, neurosurgery. By classifying HRC into three interactive modes based on level autonomy robot‐assisted minimally invasive key technologies imaging perception, force sensing, human–robot interaction control methods are thoroughly explored. In this review, comprehensive up‐to‐date overview advancements within robotics is provided. Additionally, review delves challenges safety concerns associated with employing systems highlighting areas for improvement innovation. Finally, forward‐looking perspective trends presented, offering insights how emerging innovations set to enhance transform practices.

Language: Английский

Citations

1

Analytical solution of a microrobot-blood vessel interaction model DOI Creative Commons
Gengxiang Wang,

Andrew Bickerdike,

Yang Liu

et al.

Nonlinear Dynamics, Journal Year: 2024, Volume and Issue: 113(3), P. 2091 - 2109

Published: Oct. 14, 2024

Abstract This study develops a dynamics model of microrobot vibrating in blood vessel aiming to detect potential cancer metastasis. We derive an analytical solution for microrobot’s motion, considering interactions with the walls modelled by linear spring-dashpot and constant damping value viscosity. The facilitates instantaneous state transitions microrobot, such as contact wall free motion within fluid. Amplitudes phase angles from transient solutions are solved at arbitrary moments, providing insights into its dynamics. proposed system is validated experimental data, serving benchmark examine influence pertinent parameters on dynamic response. It found that force transmitted wall, assessed system’s transmissibility function dependent frequency ratios, decreases increasing ratio intensifies when below $$\sqrt 2$$ 2 . At equal 1, resonance phenomenon dominated magnification factor linked ratio, amplitude decreases. Finally, different sets parameters, including excitation magnitude, fluid damping, wall’s stiffness reveal multi-periodic motions fake collision wall. Simulation results imply these phenomena minimally affected but significantly influenced other coefficient research provides robust theoretical foundation developing control strategies microrobots aimed detecting

Language: Английский

Citations

1

Dual-Responsive Reconfigurable Miniature Fiberbots: A Study for Vascular Embolization DOI Creative Commons
Xurui Liu,

Xin Song,

Li Zhang

et al.

Research, Journal Year: 2024, Volume and Issue: 7

Published: Jan. 1, 2024

Navigating the intricate and narrow vascular pathways of body remains a formidable challenge in embolization, often limiting maneuverability steerability traditional catheters. This study, by T.T. Xu co-workers, introduces dual-responsive reconfigurable miniature fiberbots, which are capable catheter-assisted deployment, navigation, embolization systems. Through meticulous design magnetic control, this work successfully validates multistage approach renal artery rabbits vivo. The experiments not only overcome existing limitations conventional catheterization techniques but also open new avenues for minimally invasive treatments.

Language: Английский

Citations

0

A Magnetic Catheter with Force Sensing Capability toward Interventional Surgery DOI
Xinliang Wang, Weida Kang, Xudong Liang

et al.

IEEE Robotics and Automation Letters, Journal Year: 2024, Volume and Issue: 9(11), P. 10375 - 10382

Published: Sept. 27, 2024

Language: Английский

Citations

0

Untethered microrobots for minimally invasive removal of blood clots DOI

Zhicheng Ye,

Ben Wang

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 265 - 286

Published: Nov. 1, 2024

Language: Английский

Citations

0