| 摘要 |
An antenna arrangement with a feed in the form of a coaxial cable arrangement which is suitable for radio frequencies, especially for medical heat application in body cavities, an extrusion method for its production, a dilatation catheter with the antenna arrangement, and a method for carrying out a dilatation treatment are disclosed. The coaxial cable arrangement having a continuous inner conductor (1), an insulator (2) which is arranged cylindrically about the inner conductor (1), a screening device (3) which is fitted to the insulator (2) in a first section (A) of the coaxial cable arrangement starting at the proximal end (5) of the coaxial cable arrangement, a second section (B) of the coaxial cable arrangement, which starts at the distal end (10) of the first section (A) of the coaxial cable arrangement and ends at the distal end (6) of the coaxial cable arrangement, as an antenna (8) in which there is no insulator (2) and no screening device (3) arranged around the continuous inner conductor (1), the coaxial cable arrangement having a third section (C) which starts at the proximal end (5) of the antenna arrangement and is shorter than the first section (A) of the coaxial cable arrangement, has a relatively high stiffness in the third section (C), for example as a result of filling operating gaps, mesh gaps or winding gaps which are inherent in the screening device. <IMAGE> |
