04967765 is referenced by 368 patents and cites 9 patents.

A urethral inserted applicator for prostate hyperthermia includes a multi-tube, balloon type catheter. The catheter includes first and second closed end fluid dry tubes, respectively, for a helical coil antenna type applicator, and a microwave type temperature sensor for measuring the temperature of the prostate tissue, and an open fluid receiving tube. A microwave generator supplies electromagnetic energy to the applicator. A comparator is connected to the temperature sensor and a temperature reference potentiometer for comparing the actual tissue temperature level with a desired temperature level and outputting control signals to the microwave generator for controlling the output to the applicator. The coil type applicator is an elongated coil having a tip end connected to the center conductor of a coaxial cable and an opposite end connected to the outer conductor of the coaxial cable. A sheet or sheath of insulation material covers the coil antenna for insulating the coil from the tissue and the thickness of the sheet may be varied to provide uniform tissue heating along the length of the coil. The balloon of the catheter engages the body's bladder to position the applicator properly during the treatment.

Title
Urethral inserted applicator for prostate hyperthermia
Application Number
7/225307
Publication Number
4967765
Application Date
July 28, 1988
Publication Date
November 6, 1990
Inventor
Trung V Nguyen
Murray
UT, US
Amer M Tumeh
Salt Lake City
UT, US
Theron N Schaefermeyer
North Salt Lake
UT, US
Paul F Turner
North Salt Lake
UT, US
Agent
Mallinckrodt & Mallinckrodt
Assignee
BSD Medical Corporation
UT, US
IPC
A61N 5/02
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