Urethral inserted applicator for prostate hyperthermia

Details Urethral inserted applicator for prostate hyperthermia Urethral inserted applicator for prostate hyperthermia

A - Human Necessities

61

N

A61N 5/00 (2006.01) A61B 18/14 (2006.01) A61N 1/40 (2006.01)

Patent

CA 2095516

2095516 9207621 PCTABS00013 A radiofrequency energy source (12) supplies electromagnetic energy to the applicator (14) which acts as an electrode. A control circuit (26) contains a comparator (42) which is connected to a temperature sensor (20) and a temperature reference device (44) for comparing the actual tissue temperature level with a desired temperautre level and provides control signals to the energy source (12) for controlling the output to the applicator. A second electrode (96) provides a current return for the heating current from applicator (14). A sheet or sheath of insulation material covers the applicator (14) insulating it from the tissue; the thickness of the sheet or sheath may be varied to provide uniform tissue heating along the length of the applicator.

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