| abstract |
Vibratory electrical energy is transferred to an electrical conductor, such as a wire or catheter, that is coated with a ferromagnetic material around the selected area. The ferromagnetic material by high frequency electrical energy has fast heating and cooling responsiveness, adjustable by controllable power transfer. The ferromagnetic material can be used to achieve tissue separation, coagulation, tissue destruction, or other intended tissue effects in many surgical procedures. Thermal, electrosurgical and mechanical equipment may be coupled to the surgical instrument. The potential damaging effects of the first equipment can be minimized using the second equipment. For example, thermal congestion retains the advantages of unipolar ablation waveforms while electrosurgical applications help to avoid the malignant tissue effects associated with congestive unipolar electrosurgical waveforms. |