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Biometry-based concentric tubes robot for vitreoretinal surgery.

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    Summary
    This summary is machine-generated.

    This study introduces a novel concentric tube robot designed for delicate vitreoretinal surgery. The robot expands the surgical workspace, enabling safer access to peripheral retinal regions without damaging the eye or lens.

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    Area of Science:

    • Ophthalmology
    • Robotics
    • Biomedical Engineering

    Background:

    • Vitreoretinal surgery involves intricate maneuvers within the eye.
    • Scleral incisions create a fulcrum effect, limiting surgical workspace and risking ocular damage.
    • Current surgical tools face limitations in accessing peripheral retinal areas.

    Purpose of the Study:

    • To propose a novel concentric tube robot for panretinal interventions.
    • To overcome the workspace limitations and risks associated with traditional vitreoretinal surgery.
    • To design a robot system compatible with 23G vitreoretinal surgery.

    Main Methods:

    • A concentric tube robot was designed based on human eye biometrics and workspace requirements.
    • The system incorporates sub-millimeter concentric tubes and a modular design with rapid tube exchange.
    • A sub-millimeter flexible gripper was fabricated for tissue manipulation.
    • The robot was evaluated for its ability to reach peripheral retinal regions and minimize incision point motion.

    Main Results:

    • The robot demonstrated the ability to reach peripheral retinal regions.
    • Limited motion was observed at the scleral incision point.
    • The system showed no risk of contact with the intraocular lens.
    • The design is suited for 23G vitreoretinal surgery, facilitating clinical workflow.

    Conclusions:

    • The proposed concentric tube robot expands the intraocular workspace for vitreoretinal surgery.
    • This robotic system mitigates risks of scleral stress and intraocular lens damage.
    • The design offers a promising solution for safer and more effective panretinal interventions.