Waveforms in electrosurgery
Different waveforms may be generated by the electrosurgery machine for different procedures.
Continuous single, high frequency (>400 V) sine wave used at high heat for cutting / vaporisation leaves a zone of thermal damage. A high pitched sound is heard.
Pulsed or modulated waveforms allow tissue to cool between bursts so that the zone of thermal damage is minimal.
A sine wave turned on and off in a rapid succession (rectified) produces the slower heating process that results in coagulation. A rougher, lower tone is heard due to lower power.
Variable waveforms can be produced to blend cut and coagulation, as power is adjusted in real time depending on tissue impedance.
Electrofulguration and electrodessiccation
Electrofulguration and electrodesiccation are used to destroy superficial lesions that are unlikely to bleed profusely when disturbed, such as viral warts and seborrhoeic keratoses.
Jinhua Huacheng Medical Appliance Co.,Ltd.
Produce for disposable medical products like disposable electrosurgical pencil,grounding plate and skin stapler.
