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Basic knowledge of a microwave tissue coagulator and its clinical applications

K Tabuse1

  • 1Department of Surgery, Osaka Minami National Hospital, 2-1, Kido Higashi Cho Kawachinagano City, Osaka 586, Japan.

Journal of Hepato-Biliary-Pancreatic Surgery
|September 24, 1998
PubMed
Summary

Microwave tissue coagulation, using a 2450-MHz frequency, effectively controls bleeding in surgery. This minimally invasive technique enhances results in various procedures, including cancer therapy.

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Area of Science:

  • Surgical Technology
  • Biomedical Engineering

Background:

  • A microwave tissue coagulator, initially for hepatic resection hemorrhage control, is now widely used in minimally invasive surgery.
  • The device utilizes a 2450-MHz microwave emitted from a monopolar antenna to induce localized protein coagulation through heat generation.

Purpose of the Study:

  • To describe the principles and applications of microwave tissue coagulation in surgery.
  • To highlight its efficacy in various surgical fields and therapeutic outcomes.

Main Methods:

  • Application of a monopolar antenna radiating a 2450-MHz microwave within tissue.
  • Utilizing the localized electromagnetic field to generate heat and coagulate proteins.
  • Controlling the coagulation field through parameters like frequency, permittivity, antenna length, and irradiation duration.

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Main Results:

  • Successful hemorrhage control during hepatic resection.
  • Widespread adoption in minimally invasive surgery, including gastrointestinal endoscopic, laparoscopic, and percutaneous procedures.
  • Enhanced therapeutic results, particularly in cancer therapy.

Conclusions:

  • Microwave tissue coagulation is a versatile and effective tool for minimally invasive surgery.
  • Its application extends beyond liver surgery, improving outcomes in diverse surgical interventions.
  • The technique shows promise for enhanced cancer treatment efficacy.