Treatment apparatus

A PROBE (1) DESIGNED TO PROPAGATE AND RADIATE ELECTROMAGNETIC ENERGY IN MICROWAVES IN A CONTROLLED WAY. THE PROBE (1) INCLUDES AT LEAST ONE WAVE GUIDE (2) WITH A CROSS SECTION THAT WOULD NOT NORMALLY PASS MICROWAVES AT OPERATIONAL FREQUENCY. THE WAVE GUIDE (2) THEREFORE INCLUDES A DIELECTRIC MATERIAL (5), AS ALUMINUMS, IN THE FORM OF A ROD WITH AN EXPOSED PART THAT FORMS AN ANTENNA. THE PROBE IS PREFERABLY USED IN ENDOMETRIAL ABLATION AND THEREFORE THE REDUCED DIMENSION OF THE WAVE GUIDE MAY BE COMPATIBLE WITH THE NARROW NECK OF THE UTERUS.