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Endotract antenna device for hyperthermia

  • US 4,662,383 A
  • Filed: 09/23/1983
  • Issued: 05/05/1987
  • Est. Priority Date: 09/27/1982
  • Status: Expired due to Term
First Claim
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1. An endotract antenna device for hyperthermia treatment of a tract organ comprising:

  • a microwave oscillator;

    a microwave antenna electrically connected to the microwave oscillator for radiating microwaves;

    an expandable balloon-like member made of a flexible and elastic polymeric thin film and defining a variable volume chamber filled with a cooling liquid composed mostly of water and having a low absorption of said microwaves and containing said antenna therein;

    means for feeding and draining said cooling liquid to and from the chamber of said balloon-like member, said feeding and draining means including means for controlling the pressure of the cooling liquid flowing through the chamber of the balloon-like member so as to produce an adequate pressure in the chamber of the balloon-like member and expand the balloon-like member so that the balloon-like member can intimately contact a wall of the tract organ;

    said cooling liquid acting to transmit said microwaves from said antenna to said wall of the tract organ at substantially the same wavelength as in said tract organ to heat said tract organ; and

    means for controlling the temperature of the cooling liquid flowing through the chamber, thereby enabling the temperature and the wall of the tract organ to be controlled.

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