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A Novel Articulating Chip-on-Tip Endoscope for Dynamic Middle Ear Surgical Visualization.

Brennan L Moeller, Brian W Herrmann, Mark E Rentschler

    IEEE Transactions on Bio-Medical Engineering
    |November 1, 2023
    PubMed
    Summary

    A new Articulating Chip-on-Tip Endoscope (ACoT Endo) significantly improves visualization in pediatric middle ear surgeries. This advanced endoscope offers enhanced views and articulation, potentially reducing the need for invasive mastoidectomies.

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    Area of Science:

    • Medical Devices
    • Surgical Technology
    • Otolaryngology

    Background:

    • Pediatric middle ear surgeries often require invasive procedures like mastoidectomies due to limited visualization.
    • Standard endoscopes have inherent limitations in articulation and field of view within the complex middle ear anatomy.

    Purpose of the Study:

    • To introduce and evaluate a novel Articulating Chip-on-Tip Endoscope (ACoT Endo) for enhanced visualization in pediatric Otolaryngology middle ear surgeries.
    • To assess the potential of the ACoT Endo to reduce the instances of mastoidectomies.

    Main Methods:

    • The ACoT Endo features a cable-driven distal end camera and a Chip-on-Tip camera, designed for improved visualization and articulation.
    • Bending capacity (70° ± 2°) and center axis rotation (360°) were evaluated.

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  • Functionality was tested using a Mock Ear simulating human ear anatomy, comparing the ACoT Endo against a standard 0° Karl Storz endoscope.

    • Main Results:

    • The ACoT Endo provided visualization comparable to standard endoscopes, with an approximate 69% increase in field of view and a 249% increase in captured area compared to the 0° Karl Storz endoscope.
    • The device allowed for effortless camera articulation with simple finger rotation, facilitating procedures like middle ear excision.
    • Surgical details were accurately captured, demonstrating its utility in ENT procedures.

    Conclusions:

    • The ACoT Endo offers dynamic viewing angles and superior visualization within the middle ear via a single, highly articulate endoscope.
    • Its capabilities present significant potential benefits for Otolaryngology procedures, improving surgical outcomes and safety in pediatric middle ear surgeries.