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Capsule endoscopy—A mechatronics perspective

Lin LIN, Mahdi RASOULI, Andy Prima KENCANA, Su Lim TAN, Kai Juan WONG, Khek Yu HO, Soo Jay PHEE

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1,   Pages 33-39 doi: 10.1007/s11465-011-0203-5

Abstract: circuit technology, wireless communication, and sensor technology have opened the door for development of miniature

Keywords： wireless capsule endoscopy     ingestible medical device     in-body medical device     medical robot     miniature actuator    

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Analysis of actuating mechanics characteristics for a flexible miniature robot system

YU Lianzhi, YAN Guozheng, MA Guanying, ZAN Peng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 66-70 doi: 10.1007/s11465-008-0006-5

Abstract: Based on the inchworm movement, a miniature endoscope inspection robot system with a flexible structureThe system is actuated by a pneumatic rubber actuator with three degrees of freedom, and it holds its

Keywords： calculation     consistent     endoscope inspection     electro-pneumatic     miniature endoscope    

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An autonomous miniature wheeled robot based on visual feedback control

CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 197-200 doi: 10.1007/s11465-007-0033-7

Abstract: Using two micro-motors, a novel omni-direction miniature wheeled robot is designed on the basis of the

Keywords： measuring     distance     autonomous locomotion     advantage     navigation    

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Ingestible wireless capsules for enhanced diagnostic inspection of gastrointestinal tract

Mahdi RASOULI, Andy Prima KENCANA, Van An HUYNH, Eng Kiat TING, Joshua Chong Yue LAI, Kai Juan WONG, Su Lim TAN, Soo Jay PHEE

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1,   Pages 40-44 doi: 10.1007/s11465-011-0204-4

Abstract:

Wireless capsule endoscopy has become a common procedure for diagnostic inspection of gastrointestinal tract. This method offers a less-invasive alternative to traditional endoscopy by eliminating uncomfortable procedures of the traditional endoscopy. Moreover, it provides the opportunity for exploring inaccessible areas of the small intestine. Current capsule endoscopes, however, move by peristalsis and are not capable of detailed and on-demand inspection of desired locations. Here, we propose and develop two wireless endoscopes with maneuverable vision systems to enhance diagnosis of gastrointestinal disorders. The vision systems in these capsules are equipped with mechanical actuators to adjust the position of the camera. This may help to cover larger areas of the digestive tract and investigate desired locations. The preliminary experimental results showed that the developed platform could successfully communicate with the external control unit via human body and adjust the position of camera to limited degrees.

Keywords： wireless capsule endoscopy     ingestible medical device     in-body medical device     miniature actuator     medical    

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Development of mobile miniature natural gas liquefiers

Yanxing ZHAO, Maoqiong GONG, Haocheng WANG, Hao GUO, Xueqiang DONG

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 667-682 doi: 10.1007/s11708-020-0695-y

Abstract: In consideration of the above, this paper reviews the development of mobile miniature NG liquefiers in

Keywords： natural gas     mobile miniature liquefiers     mixed refrigerant cycle     vapor liquid equilibrium     heat transfer    

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New nonlinear stiffness actuator with predefined torque‒deflection profile

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0721-3

Abstract: A nonlinear stiffness actuator (NSA) could achieve high torque/force resolution in low stiffness range

Keywords： compliant actuator     nonlinear stiffness actuator     nonlinear spring     predefined torque−deflection profile    

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A model reference adaptive control based method for actuator delay estimation in real-time testing

Cheng CHEN, James M. RICLES

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 277-286 doi: 10.1007/s11709-010-0072-8

Abstract: The compensation of actuator delay is therefore critical to achieve stable and reliable experimentaldelay and achieve good actuator control for real-time tests.However, these adaptive methods all require time duration for actuator delay adaptation.Experiments show that a good actuator delay estimate can help optimize the performance of the adaptiveThe rate of adaptation also requires that a good actuator delay estimate be acquired especially for the

Keywords： real-time testing     actuator delay     compensation     adaptive control     MIT rule     discrete transfer function    

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Development of a masticatory robot using a novel cable-driven linear actuator with bidirectional motion

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0687-1

Abstract: A cable-driven linear actuator (CDLA) capable of bidirectional motion is proposed in this study to design

Keywords： masticatory robot     cable-driven     linear actuator     parallel robot     stiffness analysis    

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Mechanical design and analysis of a novel variable stiffness actuator with symmetrical pivot adjustment

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 711-725 doi: 10.1007/s11465-021-0647-1

Abstract: Thus, this paper aims to design a novel variable stiffness actuator (VSA) that can provide safer physical

Keywords： variable stiffness actuator     variable stiffness module     drive module     symmetrical structure     double-deck    

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A miniature triaxial apparatus for investigating the micromechanics of granular soils with

Zhuang CHENG, Jianfeng WANG, Matthew Richard COOP, Guanlin YE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 357-373 doi: 10.1007/s11709-019-0599-2

Abstract: The development of a miniature triaxial apparatus is presented.The apparatus allows for triaxial testing of a miniature dry sample with a size of (diameter height

Keywords： triaxial apparatus     X-ray μCT     in situ test     micro-scale mechanical behavior     granular soils    

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Design and characteristic research of a novel electromechanical-hydraulic hybrid actuator with two transmission

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0735-x

Abstract: This study proposes and designs a novel electromechanical-hydraulic hybrid actuator (EMHA) that integrates

Keywords： electromechanical-hydraulic hybrid actuator (EMHA)     integration     transmission mechanisms     power assistance    

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Cavitation in semi-open centrifugal impellers for a miniature pump

LUO Xianwu, LIU Shuhong, ZHANG Yao, XU Hongyuan

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 31-35 doi: 10.1007/s11708-008-0011-8

Abstract: Cavitation in miniature pumps was investigated experimentally for two semi-open centrifugal impellersThe results show that the miniature pumps have similar cavitation performances as an ordinary-size pumpshow that uniform flow upstream of the impeller inlet will improve the cavitation performance of a miniature

Keywords： cavitation performance     semi-open impeller     increased     two-dimensional     efficiency    

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Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 433-438 doi: 10.1007/s11465-007-0074-y

Abstract: This paper develops a 30 mm × 30 mm × 50 mm spherical micro actuator driven by piezoelectric ceramicFirst, the space coordinate relationship of the spherical micro actuator and a dynamic model are setSecond, The Runge-Kutta arithmetic is used to calculate the dynamical parameters of the micro actuatorwith a micro-gripper based on the sample spherical micro actuator, and the experimental research onof the micro actuator, driving signal frequency, friction coefficient of the contact surface between

Keywords： spherical     micro-gripper     friction coefficient     dynamic     frequency    

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A Miniature Meta-Optical System for Reconfigurable Wide-Angle Imaging and Polarization-Spectral Detection

Fei Zhang,Minghao Liao,Mingbo Pu,Yinghui Guo,Lianwei Chen,Xiong Li,Qiong He,Tongtong Kang,Xiaoliang Ma,Yuan Ke,Xiangang Luo,

Engineering doi: 10.1016/j.eng.2023.07.008

Abstract: demonstration, the simultaneous implementation of wide-angle imaging and polarization-spectral detection in a miniature

Keywords： Metasurfaces     Reconfigurable     Imaging     Spectral    

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Advanced Bioprocess Development and Manufacturing Technologies in High-Throughput Miniature Bioreactors

Jiao Peng, Chen Biqiang

Strategic Study of CAE 2016, Volume 18, Issue 4,   Pages 44-50 doi: 10.15302/J-SSCAE-2016.04.007

Abstract:

In recent years, the importance of rapid response time to virulent infectious disease is widely recognized. However, the traditional technologies for bioprocess development and manufacturing will not succeed in winning this war. US healthcare companies and related organizations including US Department of Human Health and Service, proposed and started working on the next generation of technology platforms for advanced bioprocess development and manufacturing (ABDM).The development of ABDM is to significantly reduce the timeframe for bioprocess development and manufacturing, making it possible to promptly respond to outburst of pandemic influenza and prevent it from outspreading. Meanwhile, the development of precision medicine also presents new demands to the biopharmaceutical industry. With the demand of small-scale production and fast turn-around time of precision medicine, the duration of development and manufacturing needs to be accelerated significantly. At the same time, the number of sub-groups of the product would increase, and the batch sizes and amount of final product would decrease, as well. To satisfy the demands of small-scale production and fast turnaround time of ABDM, micro- and mini-bioreactor is the key equipment. The major technologies of ABDM include high throughput screening and process development based on micro- and mini-bioreactors, disposable technology, modular unit operations and flexible manufacturing. The development of ABDM will directly strengthen the National Security, improve the welfare of the people, and it also provides great social and economic values. The impact of this platform will radiate to the entire biomanufacture industry, and open a whole new era for the bioprocess development and bio-manufacturing.

Keywords： advance bioprocess development and biomanufacturing     virulent infectious disease     precision medicine     miniature    

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Title Author Date Type Operation

Capsule endoscopy—A mechatronics perspective

Lin LIN, Mahdi RASOULI, Andy Prima KENCANA, Su Lim TAN, Kai Juan WONG, Khek Yu HO, Soo Jay PHEE

Journal Article

Analysis of actuating mechanics characteristics for a flexible miniature robot system

YU Lianzhi, YAN Guozheng, MA Guanying, ZAN Peng

Journal Article

An autonomous miniature wheeled robot based on visual feedback control

CHEN Haichu

Journal Article

Ingestible wireless capsules for enhanced diagnostic inspection of gastrointestinal tract

Mahdi RASOULI, Andy Prima KENCANA, Van An HUYNH, Eng Kiat TING, Joshua Chong Yue LAI, Kai Juan WONG, Su Lim TAN, Soo Jay PHEE

Journal Article

Development of mobile miniature natural gas liquefiers

Yanxing ZHAO, Maoqiong GONG, Haocheng WANG, Hao GUO, Xueqiang DONG

Journal Article

New nonlinear stiffness actuator with predefined torque‒deflection profile

Journal Article

A model reference adaptive control based method for actuator delay estimation in real-time testing

Cheng CHEN, James M. RICLES

Journal Article

Development of a masticatory robot using a novel cable-driven linear actuator with bidirectional motion

Journal Article

Mechanical design and analysis of a novel variable stiffness actuator with symmetrical pivot adjustment

Journal Article

A miniature triaxial apparatus for investigating the micromechanics of granular soils with

Zhuang CHENG, Jianfeng WANG, Matthew Richard COOP, Guanlin YE

Journal Article

Design and characteristic research of a novel electromechanical-hydraulic hybrid actuator with two transmission

Journal Article

Cavitation in semi-open centrifugal impellers for a miniature pump

LUO Xianwu, LIU Shuhong, ZHANG Yao, XU Hongyuan

Journal Article

Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Journal Article

A Miniature Meta-Optical System for Reconfigurable Wide-Angle Imaging and Polarization-Spectral Detection

Fei Zhang,Minghao Liao,Mingbo Pu,Yinghui Guo,Lianwei Chen,Xiong Li,Qiong He,Tongtong Kang,Xiaoliang Ma,Yuan Ke,Xiangang Luo,

Journal Article

Advanced Bioprocess Development and Manufacturing Technologies in High-Throughput Miniature Bioreactors

Jiao Peng, Chen Biqiang

Journal Article