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Related Experiment Videos

[Confined blasting in microexplosion cystolithotripsy].

M Uchida

    Nihon Hinyokika Gakkai Zasshi. the Japanese Journal of Urology
    |March 1, 1989
    PubMed
    Summary

    Microexplosion lithotripsy uses small explosives to crush bladder stones. This technique, particularly confined blasting, effectively treats even large stones without complications.

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    Area of Science:

    • Medical technology
    • Urology
    • Explosives engineering

    Background:

    • Microexplosion lithotripsy is a novel technique for crushing urinary stones using controlled explosive charges.
    • This study is the 12th report in a series investigating microexplosion applications in medicine and biology, building upon research since 1977.

    Observation:

    • Microexplosion lithotripsy was successfully applied to destroy bladder stones in 130 cases between 1981 and 1988.
    • Confined blasting, a method adapted from industrial rock blasting, demonstrated 10 to 50 times greater detonation power than external charge blasting.
    • An electric drill system was developed to create holes in stones for confined blasting.

    Findings:

    • A formula for calculating the appropriate explosive dose was experimentally determined, validating industrial blasting principles for micro-scale applications.
    • Sixty cases, including two giant bladder stones exceeding 100g, were successfully treated using confined blasting with the developed system.
    • No complications were reported in the treated cases.

    Implications:

    • Microexplosion lithotripsy with confined blasting shows potential for treating all types and sizes of bladder stones.
    • This technique offers a promising alternative for managing complex urolithiasis cases.
    • Further research may refine explosive dosages and delivery systems for enhanced safety and efficacy.

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