| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate an insertion into an affected part in an organ and heat an affected part tissue in a laterally wide range. <P>SOLUTION: This coaxial antenna for a microwave coagulation therapy is provided with an external electrode 2 and a central electrode 4 provided inside the external electrode 2 via an insulator 3 and formed with a microwave irradiation part 5 at a part led from the distal end of the external electrode 2. The microwave irradiation part 5 is provided with an RL (reactive load) part 4a having an integrated inside electrode 4b and outside electrode 4c and having a flat distal end face 4d. The flat distal end face 4d of the RL part 4a is formed with an insertion head 6 formed of dielectric and having an acute whole body, and the distal end of the insertion head 6 is formed with a conductor 7. <P>COPYRIGHT: (C)2007,JPO&INPIT |
