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Related Experiment Videos

Microwave tissue coagulation applied clinically in endoscopic surgery.

K Tabuse, M Katsumi, Y Nagai

    Endoscopy
    |July 1, 1985
    PubMed
    Summary

    This study shows microwave tissue coagulation is effective for endoscopic surgery, achieving high success rates in hemostasis and alleviating stenosis. The technique offers a safe alternative for treating digestive tract lesions and early cancers.

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    Area of Science:

    • Medical Devices
    • Surgical Technology
    • Gastroenterology

    Background:

    • Endoscopic surgery requires precise tissue manipulation for hemostasis and lesion treatment.
    • Existing electrocoagulators and laser coagulators carry risks of injuring surrounding healthy tissue.
    • A need exists for a safe and effective endoscopic tissue coagulation method.

    Purpose of the Study:

    • To evaluate the efficacy and safety of a novel microwave tissue coagulator in clinical endoscopic surgery.
    • To assess the device's performance in achieving hemostasis and alleviating stenosis.
    • To determine its utility in treating benign and malignant lesions, including early-stage cancers.

    Main Methods:

    • Application of a microwave tissue coagulator in 59 patients undergoing endoscopic surgery over two years.

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  • Device utilizes an electrode thrust into tissue for targeted coagulation.
  • Adjustable coagulation range via antenna length, electric output, and coaxial cable thickness.

    • Main Results:

    • Successful hemostasis achieved in 96.5% of bleeding digestive tract lesions.
    • Stenosis alleviation reported in 86% of esophageal or rectal stenosis cases.
    • Effective hemostasis and tumor reduction demonstrated in inoperable early cancer cases.

    Conclusions:

    • The microwave tissue coagulator is a safe and easy-to-use tool for clinical endoscopic surgery.
    • Its unique electrode design minimizes risk to intact tissues compared to other modalities.
    • The device shows significant promise for managing various gastrointestinal conditions.