An intraurethral, Foley-type catheter shaft contains a microwave antenna capable of generating a cylindrically symmetrical thermal pattern, within which temperatures are capable of exceeding 45.degree. C. The antenna, which is positioned within the shaft, is surrounded by means within the shaft for absorbing...http://www.google.de/patents/US5916241?utm_source=gb-gplus-sharePatent US5916241 - Device and method for asymmetrical thermal therapy with helical dipole microwave antenna
