| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problems that it is difficult to detect puncture to a living body by a DC and microwave power is instable or the like in a microwave surgical instrument in which non-adhesive dielectric coating 10 is executed to the surface to be punctured to the body tissue of the microwave surgical instrument, while the microwave surgical instrument is provided with a grounding electrode 2 composed of a tubular conductor, a tubular dielectric 3 which is provided on the core part of the tubular electrode and whose distal end part is led out from the distal end of the grounding electrode, and a center electrode 4 composed of a rod-like conductor whose distal end part is led out through the core part of an annular dielectric. <P>SOLUTION: A lacking part without the non-adhesive dielectric coating 10 is formed at the most distal end 10a and in a belt shape 10b around the grounding electrode 2. <P>COPYRIGHT: (C)2009,JPO&INPIT |
