POUL 3000 Lecture Notes - Lecture 1: Electrosurgery, Desiccation, Direct Current

• School: University of Georgia
• Department: Poultry Science
• Course: POUL 3000
• Professor: Benson

Document Summary

Lecture 2/13/2018: sometimes electrosurgery is called radio frequency (rf, the key factor is electrosurgery is the power from the generator is high frequency, alternating current. Terms: techniques, vaporize/cut vaporizing & destroy the tissue (>100 deg c, desiccate /coagulate- desiccate (aka dehydrate); coagulate (denature protein, forms a coagulum) (around 60 deg c, fulgurate- lightening, shooting electricity from surgical unit to skin. Basically, carbonizes the entire thing; this is what happens when i got my wart burnt off: fulgurate carbonization, electrodes, active- electrode you hold in hand, dispersive- mat underneath chicken. Rf output, typically 300 to 500 khz: take the current from wall unit (60 hz) and converts it to an ac output of. Small area of contact, has greater amount of concentration. Why use rf output: tissue effects, controllable, predictable, rf does not depolarize nerves & muscles, a(cid:271)o(cid:448)e (cid:1005)(cid:1004)(cid:1004) khz it does(cid:374)"t polarize (cid:374)er(cid:448)es or (cid:373)us(cid:272)les. Monopolar vs bipolar: monopolar: active electrode at surgical site.