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Related Experiment Videos

Controlled mechanized trepan.

J Kam, E M Goldratt, Y R Barishak

    Journal of Bioengineering
    |April 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces an automated mechanized trepan for eye surgery. The device stops automatically, preventing damage to inner eye structures during corneal procedures.

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    Area of Science:

    • Ophthalmology
    • Biomedical Engineering
    • Surgical Instrumentation

    Background:

    • Corneal surgery requires precise tissue removal.
    • Inadvertent damage to inner eye structures is a risk during trepanation.
    • Current mechanized trepans may lack sufficient control in final penetration stages.

    Purpose of the Study:

    • To describe a novel mechanized trepan with an automatic safety feature.
    • To enhance safety and precision in corneal trepanation procedures.
    • To prevent iatrogenic damage to intraocular structures.

    Main Methods:

    • Development of a mechanized trepan with automated halting.
    • Integration of sensors to detect changes in electrical resistance.
    • Utilizing resistance changes to control trepan advancement and rotation motors.

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    Main Results:

    • The trepan's cutting action automatically halts at the final 0.03 mm of corneal tissue.
    • A sudden change in electrical resistance between the trepan and bodily fluids triggers the automatic stop.
    • The system successfully prevented over-penetration in the final stage.

    Conclusions:

    • The described mechanized trepan offers enhanced safety for corneal procedures.
    • Automatic halting based on electrical resistance minimizes the risk of intraocular damage.
    • This technology has the potential to improve surgical outcomes in ophthalmology.