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Related Experiment Videos

A new corneal trephine

D M Lieberman

    American Journal of Ophthalmology
    |May 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    A novel corneal trephine utilizes suction and disposable razor blades for precise corneal incisions. This device allows for continuous adjustment of cutting diameter and improved visualization during ophthalmic surgery.

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    Area of Science:

    • Ophthalmology
    • Surgical Instrumentation
    • Biomedical Engineering

    Background:

    • Accurate corneal incisions are critical for successful ophthalmic surgeries, including keratoplasty and cataract procedures.
    • Existing corneal trephine designs may present challenges in achieving precise centering and optimal visualization.
    • The development of innovative surgical tools is essential for advancing patient outcomes in eye care.

    Purpose of the Study:

    • To introduce and describe a new corneal trephine designed for enhanced precision and ease of use.
    • To detail the mechanism that allows for adjustable cutting angles and continuous diameter variation.
    • To highlight the potential benefits of this device in improving surgical accuracy and visualization.

    Main Methods:

    • The novel corneal trephine features a dual-cone revolving system with integrated suction.

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  • A slide mechanism allows for adjustable inclination of a disposable razor blade (vertical or 20 degrees).
  • The device enables continuous adjustment of the cutting diameter from 8.5 mm to 2.0 mm.

    • Main Results:

    • The design ensures a clear view of both sides of the corneal incision.
    • The mechanism facilitates more accurate centering of the trephine on the cornea.
    • Continuous diameter adjustment offers versatility for various surgical requirements.

    Conclusions:

    • This new corneal trephine design offers significant improvements in precision and visualization during corneal procedures.
    • The integrated suction and adjustable blade angle contribute to enhanced surgical accuracy and safety.
    • The device's adaptability in cutting diameter makes it a potentially valuable tool for ophthalmic surgeons.