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Micro robot prototype for colonoscopy and in vitro experiments.

K Wang1, G Yan

  • 1School of Electrical and Information Engineering, Shanghai Jiaotong University, Shanghai, 200030, PR China. kdwang@sjtu.edu.cn

Journal of Medical Engineering & Technology
|March 17, 2007
PubMed
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This study introduces an autonomous, earthworm-like robot for minimally invasive colonoscopy. The bionic micro-robot successfully navigated a pig colon, demonstrating its potential for future clinical applications in colon diagnosis.

Area of Science:

  • Biomedical Engineering
  • Robotics
  • Gastroenterology

Background:

  • Colonoscopy is crucial for diagnosing colon pathologies.
  • Current methods can be invasive or lack autonomous navigation.
  • Development of micro-robots offers potential for improved colon diagnosis.

Purpose of the Study:

  • To design and manufacture an autonomous, bionic, earthworm-like micro-robot for colonoscopy.
  • To evaluate the robot's locomotion capabilities and navigation in an in vitro model.
  • To assess the feasibility of using this micro-robot for minimally invasive colon diagnosis.

Main Methods:

  • A bionic, earthworm-like micro-robot was designed and precision-manufactured.
  • The robot utilized an electromagnetic linear driver and shape memory alloy (SMA) for locomotion and imaging control.

Related Experiment Videos

  • In vitro experiments were conducted using a pig colon model to analyze locomotion efficiency, force, and velocity.

    • Main Results:

    • The micro-robot demonstrated reliable and free self-navigation within the pig colon.
    • Locomotion efficiency, ability, force, and velocity were analyzed.
    • The robot's flexible, jointed body allowed for controlled movement and imaging.

    Conclusions:

    • The developed earthworm-like micro-robot shows promise for autonomous navigation in colonoscopy.
    • This technology could enhance the safety and efficacy of minimally invasive colon diagnosis.
    • Further development may lead to practical clinical applications in colonoscopy.