| 摘要 |
The invention relates to a magnetic field applicator to heat magnetic or magnetizable substances or solids in biological tissue, with a magnetic yoke 2; 25, with two pole shoes 7, 8 across from each other and separated from each other by a gap in the exposure volume 12 on the magnetic yoke 2; 25 and with two magnetic coils 9, 10 , one assigned to each of the two pole shoes 7, 8 to produce a magnetic alternating field. According to the invention the magnetic yoke 2; 25 and the pole shoes 7, 8 consist of ferrite building blocks 16, 22 mounted together, and magnetic coils 9, 10 are disk coils with one or several helicoidally extending windings, respectively surrounding the pole shoe ends across from each other with an intercalated surrounding magnetic coil/pole shoe gap (a). In this manner a magnetic field applicator with good functions for the administration of hyperthermia as well as for thermo-ablation procedures and other medical applications is created.
|
