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Related Experiment Video

Updated: May 7, 2026

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
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Development of a tool system to support endoscope.

Y Omori, Y Takahashi, S Yamamoto

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |October 11, 2013
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    Summary

    Natural Orifice Translumenal Endoscopic Surgery (NOTES) requires working space. This study developed a novel magnetic tool system inserted via the mouth to create space without wires, advancing minimally invasive surgical techniques.

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    Area of Science:

    • Minimally Invasive Surgery
    • Medical Device Design
    • Surgical Robotics

    Background:

    • Natural Orifice Translumenal Endoscopic Surgery (NOTES) is a minimally invasive surgical approach.
    • Creating adequate working space within body cavities is a significant challenge in NOTES.
    • Existing methods often require external fixation or complex instrumentation.

    Purpose of the Study:

    • To design and develop a novel surgical tool system for creating working space in NOTES.
    • To utilize magnets and a link-based mechanism for space creation without wires.
    • To prototype and evaluate a system insertable via the mouth.

    Main Methods:

    • Design of a surgical tool incorporating a four-bar linkage and compression spring mechanism.
    • Integration of magnets to facilitate space creation, mimicking abdominal wall lifting.
    • Development of a wire-driven system to alter the tool's diameter and expand space.
    • Finite element analysis for stress evaluation and basic experimental validation.

    Main Results:

    • Successful design and realization of a prototype surgical tool system.
    • Demonstration of the link mechanism's functionality driven by wire pulling.
    • Analysis of stress distribution within the tool components.
    • Preliminary experimental data supporting the system's feasibility.

    Conclusions:

    • The developed magnetic link-mechanism tool shows promise for creating working space in NOTES.
    • The wire-driven system offers a novel approach to space creation without external wires.
    • Further research and development are warranted to optimize the system for clinical application.