Patent ID: RE40559

Claim:
A radiating device for urethral hyperthermia including a catheter provided at its distal end with an inflatable balloon ( 7 ) and adapted to receive multiple injected liquid flows ( 2 , 5 , 8 ) passing therethrough, a radiofrequency radiating antenna ( 1 ) and multiple thermocouples ( 6 , 6 ′, 6 ″), the radiating antenna being submerged within said liquid flow, characterized in that said radiating antenna ( 1 ) is submerged within a liquid flow which proceeds through a central channel ( 2 ) surrounding said radiating antenna ( 1 ) towards the distal end of said catheter and passes from said catheter through a first opening ( 3 ) into the bladder to be treated, while flowing back into said catheter towards the proximal end thereof through a second separate opening ( 4 ) of a side channel ( 5 ) surrounding the power supply cables of said thermocouples ( 6 , 6 ′, 6 ″), the ends of said thermocouples ( 6 , 6 ′, 6 ″) project out of said second opening ( 4 ), being thus deflected outwards into the bladder when said balloon ( 7 ) is inflated by injecting a fluid therein through a second side channel ( 8 ) and third opening ( 9 ), whereby the outwardly deflected ends of said thermocouples ( 6 , 6 ′, 6 ″) come into tangential engagement with the bladder wall ( 32 ) irradiated by said antenna ( 1 ).