Resistively heated cutting and coagulating surgical instrument

摘要: A resistively heated thermally cutting and coagulating surgical instrument which may be employed with a conventional electrosurgical generator having bipolar output ports cable. The utilizes heating element is to predetermined upper temperature limit while in still air under starting condition. Under this condition, heat dissipation by radiation, convection, conduction through the itself provides high end form of regulation. subsequent working condition wherein component or contact tissue, thermal both into tissue conductive components instrument. preferred formed ferromagnetic material which, when at maintained value restricted below curie does not invoke surface oxidation scaling within time interval experienced However, enough sustain effective for coagulation handle contains impedance matching circuit components. In one embodiment, incorporates an integrally probe retained lower temperatures use current restricting neck.