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Related Experiment Videos

Ultrasound spatula.

T Hara, T Hara

    Archives of Ophthalmology (Chicago, Ill. : 1960)
    |May 1, 1989
    PubMed
    Summary

    A modified ultrasound (Fragmatome) tip safely dissects cataracts and removes lens epithelial cells through small incisions. This innovative surgical tool minimizes capsular damage, enhancing cataract surgery outcomes.

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    Area of Science:

    • Ophthalmology
    • Surgical Instrumentation
    • Medical Devices

    Background:

    • Cataract surgery requires precise instruments for safe and effective lens removal.
    • Minimizing capsular damage during cataract surgery is crucial for optimal patient outcomes.
    • Existing instruments may pose risks of capsular damage during certain surgical steps.

    Purpose of the Study:

    • To introduce and evaluate a novel spatulalike ultrasound tip for cataract surgery.
    • To assess the safety and efficacy of this instrument in dissecting cataracts and removing lens epithelial cells.
    • To determine the potential for reducing capsular damage with this modified instrument.

    Main Methods:

    • A 0.9-mm ultrasound (Fragmatome) tip was modified into a spatulalike instrument.
    • The modified tip was attached to a Fragmatome handpiece and operated at approximately 6 W/cm² ultrasound intensity.
    • An infusion needle (May Needle) was used for separate irrigation.

    Main Results:

    • The instrument's rounded apex and lack of aspiration function significantly reduce the risk of capsular damage when used carefully.
    • The spatulalike tip effectively dissects cataracts for removal through smaller capsular incisions.
    • The instrument facilitates the removal of lens epithelial cells from the anterior capsule's outer surface without causing damage.

    Conclusions:

    • The modified ultrasound tip is a safe and effective tool for specific steps in cataract surgery.
    • This instrument offers improved safety by minimizing the risk of intraoperative capsular complications.
    • Its utility in dissecting cataracts and removing lens epithelial cells through small incisions makes it a valuable addition to ophthalmic surgical tools.

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